diff --git a/.env b/.env
deleted file mode 100644
index a0d8ce9..0000000
--- a/.env
+++ /dev/null
@@ -1,54 +0,0 @@
-# HexaWetter basic settings
-WEB_PORT=8080
-API_PORT=8081
-DOMAIN=wetter.example.com
-TZ=Europe/Berlin
-
-# Database
-POSTGRES_PASSWORD=hexawetter
-DATABASE_URL=postgresql://hexawetter:hexawetter@postgres:5432/hexawetter
-REDIS_URL=redis://redis:6379/0
-
-# API sources (replace with selfhosted instances when available)
-OPEN_METEO_BASE_URL=https://api.open-meteo.com/v1
-BRIGHTSKY_BASE_URL=https://api.brightsky.dev
-DWD_RADAR_BASE_URL=https://opendata.dwd.de/weather/radar/composite
-DWD_WMS_URL=https://maps.dwd.de/geoserver/dwd/wms
-DWD_WARNINGS_URL=https://www.dwd.de/DWD/warnungen/warnapp_landkreise/json/warnings.json
-NOMINATIM_BASE_URL=https://nominatim.openstreetmap.org
-NOMINATIM_USER_AGENT=HexaWetter/1.0 (selfhosted weather)
-
-# Default location: Hauzenberg, DE
-DEFAULT_LAT=48.6546
-DEFAULT_LON=13.6252
-DEFAULT_PLACE=Hauzenberg
-
-# Radar settings
-RADAR_PRODUCT=rv
-RADAR_SYNC_LIMIT=12
-RADAR_SYNC_INTERVAL_SECONDS=300
-RADAR_RENDER_INTERVAL_SECONDS=300
-RADAR_RETENTION_HOURS=48
-
-# Cache TTL (seconds)
-CACHE_TTL_FORECAST=600
-CACHE_TTL_OBSERVATIONS=300
-CACHE_TTL_WARNINGS=120
-CACHE_TTL_GEOCODE=86400
-CACHE_TTL_WMS_TIMES=120
-
-# Admin (generate with: python scripts/hash_admin_password.py 'your-secure-password')
-ADMIN_USERNAME=admin
-ADMIN_PASSWORD_HASH=$$2b$$12$$BBgUdrmwTDiYGyzSRHNbh.2F70pkzBB/B3fIRN9kGlHGy1GUP.YzG
-ADMIN_JWT_SECRET=mWXQRD1HANCZ-wPh5w4ZXokSwLmfgL1U-TbGveEELp9CGuwL-eyhooHLU4NzQYNV
-ADMIN_JWT_EXPIRE_HOURS=8
-ADMIN_LOGIN_MAX_ATTEMPTS=5
-ADMIN_LOGIN_WINDOW_SECONDS=300
-
-# Optional selfhosted profile
-OPEN_METEO_PORT=8082
-BRIGHTSKY_PORT=8083
-BRIGHTSKY_DB_PASSWORD=brightsky
-
-# Optional Traefik
-TRAEFIK_CERTRESOLVER=letsencrypt
diff --git a/.env.example b/.env.example
index f94d9a5..0ce94ec 100644
--- a/.env.example
+++ b/.env.example
@@ -36,8 +36,18 @@ CACHE_TTL_OBSERVATIONS=300
 CACHE_TTL_WARNINGS=120
 CACHE_TTL_GEOCODE=86400
 CACHE_TTL_WMS_TIMES=120
+CACHE_TTL_HEALTH_SOURCES=90
+CACHE_TTL_DASHBOARD=60
 
-# Admin (generate with: python scripts/hash_admin_password.py 'your-secure-password')
+# Security (generate with: python scripts/setup_secrets.py 'your-secure-password')
+API_KEY=
+REQUIRE_API_KEY=true
+# Comma-separated origins for CORS (empty = same-origin only when API_KEY is set)
+ALLOWED_ORIGINS=
+# Optional host allowlist, e.g. wetter.example.com,localhost
+ALLOWED_HOSTS=
+
+# Admin (generate with: python scripts/setup_secrets.py 'your-secure-password')
 # bcrypt-Hashes enthalten $ — im .env fuer docker compose jedes $ als $$ schreiben!
 ADMIN_USERNAME=admin
 ADMIN_PASSWORD_HASH=
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..96d623d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,18 @@
+# Secrets & local config
+.env
+
+# Python
+__pycache__/
+*.py[cod]
+*.egg-info/
+.venv/
+venv/
+
+# Runtime data
+data/
+
+# IDE / OS
+.idea/
+.vscode/
+*.swp
+.DS_Store
diff --git a/README.md b/README.md
index da9f1d4..ba13a1d 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,13 @@
 
 HexaWetter ist ein vollständiges Self-Hosting-Wetterportal mit Forecast, DWD-Beobachtungen, interaktiver Radar-Karte (WMS + Zeitleiste), Warnungen, Geocoding und lokalem Radar-Rendering.
 
+## Repository
+
+```bash
+git clone ssh://git@git.hexahost.dev:8006/smueller/HexaWetter.git
+cd HexaWetter
+```
+
 ## Features
 
 - **Dashboard**: Aktuelles Wetter, DWD-Station, 48h-Stundenansicht, 7-Tage-Forecast
@@ -16,7 +23,7 @@ HexaWetter ist ein vollständiges Self-Hosting-Wetterportal mit Forecast, DWD-Be
 
 ```bash
 pip install bcrypt
-python scripts/hash_admin_password.py 'dein-sicheres-passwort'
+python scripts/setup_secrets.py 'dein-sicheres-passwort'
 ```
 
 Die ausgegebenen Werte in `.env` eintragen, dann Stack neu starten.
@@ -24,11 +31,14 @@ Die ausgegebenen Werte in `.env` eintragen, dann Stack neu starten.
 Admin-UI: `http://localhost:8080/admin.html`
 
 Sicherheit:
+- **API-Key** (`API_KEY`) für alle `/api/*`-Endpunkte (Nginx setzt den Header automatisch)
 - bcrypt-Passwort-Hash (niemals Klartext in `.env` committen)
 - JWT mit `ADMIN_JWT_SECRET` (min. 32 Zeichen)
 - Rate-Limiting auf Login (5 Versuche / 5 Min.)
 - Token nur in `sessionStorage` (nicht localStorage)
 - Security-Headers auf allen API-Antworten
+- API-Port nur auf `127.0.0.1` gebunden (kein direkter externer Zugriff)
+- Schreibende Endpunkte (Radar-Sync, Cache leeren, Einstellungen) nur im Admin-Bereich
 
 
 ```bash
@@ -36,7 +46,7 @@ cp .env.example .env
 docker compose up -d --build
 ```
 
-Web-UI: `http://localhost:8080` · API: `http://localhost:8081/api/health`
+Web-UI: `http://localhost:8080` · API (lokal): `http://127.0.0.1:8081/api/health`
 
 ## Architektur
 
@@ -59,7 +69,8 @@ Web-UI: `http://localhost:8080` · API: `http://localhost:8081/api/health`
 | `GET /api/warnings` | DWD-Warnungen (standortbezogen) |
 | `GET /api/geocode/search` | Ortssuche |
 | `GET /api/radar/wms/times` | WMS-Zeitschritte für Animation |
-| `GET /api/radar/rendered` | Lokal gerenderte Radar-Frames |
+| `GET /api/admin/radar/files` | Lokale Radar-Rohdaten (Admin) |
+| `GET /api/admin/radar/rendered` | Gerenderte Radar-Frames (Admin) |
 
 ## Selfhosted Forecast (optional)
 
diff --git a/api/app/auth.py b/api/app/auth.py
index be59e61..e0202b9 100644
--- a/api/app/auth.py
+++ b/api/app/auth.py
@@ -66,6 +66,14 @@ def decode_access_token(token: str) -> dict[str, Any]:
     return jwt.decode(token, ADMIN_JWT_SECRET, algorithms=["HS256"])
 
 
+def _unauthorized(detail: str) -> HTTPException:
+    return HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail=detail,
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+
+
 async def require_admin(
     request: Request,
     credentials: HTTPAuthorizationCredentials | None = Depends(bearer_scheme),
@@ -73,13 +81,13 @@ async def require_admin(
     if not admin_configured():
         raise HTTPException(status_code=503, detail="Admin access is not configured")
     if credentials is None or credentials.scheme.lower() != "bearer":
-        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Missing bearer token")
+        raise _unauthorized("Missing bearer token")
     try:
         payload = decode_access_token(credentials.credentials)
     except JWTError as exc:
-        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid or expired token") from exc
+        raise _unauthorized("Invalid or expired token") from exc
     if payload.get("sub") != ADMIN_USERNAME or payload.get("scope") != "admin":
-        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token scope")
+        raise _unauthorized("Invalid token scope")
     return payload
 
 
diff --git a/api/app/config.py b/api/app/config.py
index d1fced1..a748a57 100644
--- a/api/app/config.py
+++ b/api/app/config.py
@@ -2,7 +2,7 @@ import os
 from pathlib import Path
 
 APP_NAME = "HexaWetter"
-APP_VERSION = "1.1.0"
+APP_VERSION = "1.2.0"
 
 DATA_DIR = Path(os.getenv("DATA_DIR", "/data"))
 RAW_RADAR_DIR = DATA_DIR / "raw" / "radar"
@@ -42,6 +42,15 @@ CACHE_TTL_DASHBOARD = int(os.getenv("CACHE_TTL_DASHBOARD", "60"))
 
 RATE_LIMIT_PER_MINUTE = int(os.getenv("RATE_LIMIT_PER_MINUTE", "120"))
 
+API_KEY = os.getenv("API_KEY", "")
+REQUIRE_API_KEY = os.getenv("REQUIRE_API_KEY", "true").lower() in ("1", "true", "yes", "on")
+
+_allowed_origins = os.getenv("ALLOWED_ORIGINS", "").strip()
+ALLOWED_ORIGINS = tuple(o.strip() for o in _allowed_origins.split(",") if o.strip())
+
+_allowed_hosts = os.getenv("ALLOWED_HOSTS", "").strip()
+ALLOWED_HOSTS = tuple(h.strip() for h in _allowed_hosts.split(",") if h.strip())
+
 ADMIN_USERNAME = os.getenv("ADMIN_USERNAME", "admin")
 ADMIN_PASSWORD_HASH = os.getenv("ADMIN_PASSWORD_HASH", "")
 ADMIN_JWT_SECRET = os.getenv("ADMIN_JWT_SECRET", "")
diff --git a/api/app/database.py b/api/app/database.py
index 3152c64..7e1c1a6 100644
--- a/api/app/database.py
+++ b/api/app/database.py
@@ -200,7 +200,7 @@ async def list_rendered_radar(product: str, limit: int = 24) -> list[dict[str, A
             result.append(
                 {
                     "filename": row["filename"],
-                    "image_url": f"/api/radar/rendered/{product}/{row['filename']}.png",
+                    "image_url": f"/api/admin/radar/rendered/{product}/{row['filename']}.png",
                     "bounds": bounds,
                     "modified_at": row["modified_at"].isoformat() if row["modified_at"] else None,
                     "rendered_at": row["updated_at"].isoformat() if row["updated_at"] else None,
diff --git a/api/app/main.py b/api/app/main.py
index 92e208c..9000edf 100644
--- a/api/app/main.py
+++ b/api/app/main.py
@@ -1,52 +1,45 @@
 from __future__ import annotations
 
 import logging
-import os
-import re
 import time
 from collections import defaultdict
 from contextlib import asynccontextmanager
-from datetime import datetime, timedelta, timezone
-from pathlib import Path
+from datetime import datetime, timezone
 from typing import Any
 
 import httpx
 from fastapi import FastAPI, HTTPException, Query, Request
 from fastapi.middleware.cors import CORSMiddleware
-from fastapi.responses import FileResponse, JSONResponse
+from fastapi.middleware.trustedhost import TrustedHostMiddleware
+from fastapi.responses import JSONResponse
 from pydantic import BaseModel, Field
 
-from app.auth import admin_configured
-from app.cache import close_redis, init_redis, redis_available
+from app.cache import close_redis, init_redis
 from app.config import (
     APP_NAME,
     APP_VERSION,
-    BRIGHTSKY_BASE_URL,
     DEFAULT_LAT,
     DEFAULT_LON,
     DEFAULT_PLACE,
-    DWD_RADAR_BASE_URL,
     DWD_WMS_URL,
-    OPEN_METEO_BASE_URL,
     RADAR_PRODUCT,
-    RADAR_RETENTION_HOURS,
     RATE_LIMIT_PER_MINUTE,
-    RENDERED_RADAR_DIR,
     RAW_RADAR_DIR,
+    RENDERED_RADAR_DIR,
 )
-from app.database import (
-    close_db,
-    init_db,
-    list_rendered_radar,
-    pool_available,
-    upsert_radar_meta,
-)
-from app.http_client import close_http_client, get_client, init_http_client
+from app.database import close_db, init_db
+from app.http_client import close_http_client, init_http_client
 from app.services.dashboard import build_dashboard
-from app.services.dwd_radar import RADAR_FILE_RE, fetch_radar_index
+from app.services.dwd_radar import fetch_radar_index
 from app.services.geocoding import reverse_geocode, search_places
-from app.services.health import check_sources
 from app.routes.admin import router as admin_router
+from app.security import (
+    cors_allowed_origins,
+    is_api_key_exempt,
+    trusted_hosts,
+    validate_security_config,
+    verify_request_api_key,
+)
 from app.services.warnings import fetch_warnings_for_location
 from app.services.weather import get_forecast, get_observations
 from app.services.wms import fetch_wms_time_steps
@@ -74,6 +67,7 @@ class FavoriteLocation(BaseModel):
 
 @asynccontextmanager
 async def lifespan(_: FastAPI):
+    validate_security_config()
     await init_http_client()
     await init_db()
     await init_redis()
@@ -87,14 +81,32 @@ async def lifespan(_: FastAPI):
 
 app = FastAPI(title=APP_NAME, version=APP_VERSION, lifespan=lifespan)
 app.include_router(admin_router)
+
+_hosts = list(trusted_hosts())
+if _hosts:
+    app.add_middleware(TrustedHostMiddleware, allowed_hosts=_hosts)
+
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=["*"],
-    allow_methods=["*"],
-    allow_headers=["*"],
+    allow_origins=cors_allowed_origins(),
+    allow_methods=["GET", "POST", "PUT", "OPTIONS"],
+    allow_headers=["Authorization", "Content-Type", "X-API-Key"],
 )
 
 
+@app.middleware("http")
+async def api_key_middleware(request: Request, call_next):
+    path = request.url.path
+    if path.startswith("/api/") and not is_api_key_exempt(path):
+        if not verify_request_api_key(request):
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Invalid or missing API key"},
+                headers={"WWW-Authenticate": "ApiKey"},
+            )
+    return await call_next(request)
+
+
 @app.middleware("http")
 async def security_headers_middleware(request: Request, call_next):
     response = await call_next(request)
@@ -102,6 +114,9 @@ async def security_headers_middleware(request: Request, call_next):
     response.headers["X-Frame-Options"] = "DENY"
     response.headers["Referrer-Policy"] = "strict-origin-when-cross-origin"
     response.headers["Permissions-Policy"] = "geolocation=(self)"
+    if path := request.url.path:
+        if path.startswith("/api/admin") or path.endswith("admin.html"):
+            response.headers["X-Robots-Tag"] = "noindex, nofollow"
     return response
 
 
@@ -131,20 +146,6 @@ async def health() -> dict[str, Any]:
         "service": APP_NAME,
         "version": APP_VERSION,
         "time_utc": utc_now().isoformat(),
-        "admin_enabled": admin_configured(),
-        "postgres": pool_available(),
-        "redis": redis_available(),
-    }
-
-
-@app.get("/api/health/sources")
-async def health_sources() -> dict[str, Any]:
-    sources = await check_sources()
-    degraded = [s for s in sources if s.get("status") not in ("ok", "disabled")]
-    return {
-        "status": "degraded" if degraded else "ok",
-        "time_utc": utc_now().isoformat(),
-        "sources": sources,
     }
 
 
@@ -162,18 +163,6 @@ async def dashboard(
         raise HTTPException(status_code=502, detail=f"Dashboard error: {exc}") from exc
 
 
-def cleanup_old_radar_files() -> None:
-    cutoff = utc_now() - timedelta(hours=RADAR_RETENTION_HOURS)
-    if not RAW_RADAR_DIR.exists():
-        return
-    for path in RAW_RADAR_DIR.rglob("*"):
-        if not path.is_file() or not RADAR_FILE_RE.fullmatch(path.name):
-            continue
-        modified = datetime.fromtimestamp(path.stat().st_mtime, timezone.utc)
-        if modified < cutoff:
-            path.unlink(missing_ok=True)
-
-
 @app.get("/api/location/default")
 async def default_location() -> Location:
     return Location()
@@ -247,88 +236,6 @@ async def radar_latest(
         raise HTTPException(status_code=502, detail=f"DWD radar index unavailable: {exc}") from exc
 
 
-@app.post("/api/radar/sync")
-async def radar_sync(
-    product: str = Query(RADAR_PRODUCT, pattern="^[a-z0-9_-]+$"),
-    limit: int = Query(6, ge=1, le=50),
-) -> dict[str, Any]:
-    latest = await radar_latest(product=product, limit=limit)
-    target_dir = RAW_RADAR_DIR / "composite" / product
-    target_dir.mkdir(parents=True, exist_ok=True)
-    downloaded = []
-    skipped = []
-
-    client = get_client()
-    for item in latest["files"]:
-        out = target_dir / item["name"]
-        if out.exists() and out.stat().st_size > 0:
-            skipped.append(item["name"])
-            continue
-        response = await client.get(item["url"], timeout=90.0)
-        response.raise_for_status()
-        out.write_bytes(response.content)
-        downloaded.append(item["name"])
-        modified = datetime.fromtimestamp(out.stat().st_mtime, timezone.utc)
-        await upsert_radar_meta(product, item["name"], out.stat().st_size, modified, "pending")
-
-    cleanup_old_radar_files()
-    return {"product": product, "target_dir": str(target_dir), "downloaded": downloaded, "skipped": skipped}
-
-
-@app.get("/api/radar/files")
-async def radar_files(
-    product: str = Query(RADAR_PRODUCT, pattern="^[a-z0-9_-]+$"),
-) -> dict[str, Any]:
-    target_dir = RAW_RADAR_DIR / "composite" / product
-    target_dir.mkdir(parents=True, exist_ok=True)
-    files = []
-    for path in sorted(target_dir.iterdir()):
-        if not path.is_file() or not RADAR_FILE_RE.fullmatch(path.name):
-            continue
-        modified = datetime.fromtimestamp(path.stat().st_mtime, timezone.utc)
-        files.append(
-            {
-                "name": path.name,
-                "size_bytes": path.stat().st_size,
-                "modified_utc": modified.isoformat(),
-                "download_url": f"/api/radar/files/{product}/{path.name}",
-            }
-        )
-    return {"product": product, "path": str(target_dir), "count": len(files), "files": files}
-
-
-@app.get("/api/radar/files/{product}/{filename}")
-async def radar_file_download(product: str, filename: str):
-    if not re.fullmatch(r"[a-z0-9_-]+", product, re.IGNORECASE):
-        raise HTTPException(status_code=400, detail="Invalid product")
-    if not RADAR_FILE_RE.fullmatch(filename):
-        raise HTTPException(status_code=400, detail="Invalid filename")
-    path = RAW_RADAR_DIR / "composite" / product / filename
-    if not path.exists():
-        raise HTTPException(status_code=404, detail="File not found")
-    media_type = "application/x-tar" if filename.lower().endswith(".tar") else "application/octet-stream"
-    return FileResponse(path, filename=filename, media_type=media_type)
-
-
-@app.get("/api/radar/rendered")
-async def radar_rendered_list(
-    product: str = Query(RADAR_PRODUCT, pattern="^[a-z0-9_-]+$"),
-    limit: int = Query(24, ge=1, le=100),
-) -> dict[str, Any]:
-    frames = await list_rendered_radar(product, limit=limit)
-    return {"product": product, "count": len(frames), "frames": frames}
-
-
-@app.get("/api/radar/rendered/{product}/{filename}.png")
-async def radar_rendered_image(product: str, filename: str):
-    if not re.fullmatch(r"[a-z0-9_.-]+", filename, re.IGNORECASE):
-        raise HTTPException(status_code=400, detail="Invalid filename")
-    path = RENDERED_RADAR_DIR / product / f"{filename}.png"
-    if not path.exists():
-        raise HTTPException(status_code=404, detail="Rendered image not found")
-    return FileResponse(path, media_type="image/png")
-
-
 @app.get("/api/radar/wms")
 async def radar_wms() -> dict[str, Any]:
     return {
@@ -391,14 +298,3 @@ async def radar_wms_times(
         raise HTTPException(status_code=502, detail=f"WMS time dimension unavailable: {exc}") from exc
 
 
-@app.get("/api/sources")
-async def sources() -> dict[str, Any]:
-    return {
-        "note": "HexaWetter kann externe APIs nutzen oder über docker-compose.selfhosted.yml eigene Instanzen anbinden.",
-        "open_meteo_base_url": OPEN_METEO_BASE_URL,
-        "brightsky_base_url": BRIGHTSKY_BASE_URL,
-        "dwd_radar_base_url": DWD_RADAR_BASE_URL,
-        "dwd_wms_url": DWD_WMS_URL,
-        "dwd_attribution": "Datenbasis: Deutscher Wetterdienst (DWD), Open Data.",
-        "osm_attribution": "Kartenbasis: OpenStreetMap-Mitwirkende.",
-    }
diff --git a/api/app/routes/admin.py b/api/app/routes/admin.py
index d51ca2f..a63dc2a 100644
--- a/api/app/routes/admin.py
+++ b/api/app/routes/admin.py
@@ -1,11 +1,14 @@
 from __future__ import annotations
 
+import asyncio
 import os
+import re
 from datetime import datetime, timezone
 from pathlib import Path
 from typing import Any
 
-from fastapi import APIRouter, Depends, HTTPException, Request
+from fastapi import APIRouter, Depends, HTTPException, Query, Request
+from fastapi.responses import FileResponse
 from pydantic import BaseModel, Field
 
 from app.auth import (
@@ -37,8 +40,10 @@ from app.config import (
     RAW_RADAR_DIR,
     RENDERED_RADAR_DIR,
 )
-from app.database import pool_available
+from app.database import list_rendered_radar, pool_available
+from app.services.dwd_radar import RADAR_FILE_RE
 from app.services.health import check_sources
+from app.services.radar_sync import sync_radar_files
 
 router = APIRouter(prefix="/api/admin", tags=["admin"])
 
@@ -87,7 +92,7 @@ def _public_config() -> dict[str, Any]:
 
 @router.get("/status")
 async def admin_status_public() -> dict[str, Any]:
-    return {"admin_enabled": admin_configured(), "version": APP_VERSION}
+    return {"admin_enabled": admin_configured()}
 
 
 @router.post("/login")
@@ -97,6 +102,7 @@ async def admin_login(request: Request, payload: LoginRequest) -> dict[str, Any]
     check_login_rate_limit(request)
     if payload.username != ADMIN_USERNAME or not verify_password(payload.password, os.getenv("ADMIN_PASSWORD_HASH", "")):
         record_failed_login(request)
+        await asyncio.sleep(1)
         raise HTTPException(status_code=401, detail="Invalid credentials")
     token = create_access_token(payload.username)
     return {
@@ -125,6 +131,95 @@ async def admin_dashboard(_: dict[str, Any] = Depends(require_admin)) -> dict[st
     }
 
 
+@router.get("/sources")
+async def admin_sources(_: dict[str, Any] = Depends(require_admin)) -> dict[str, Any]:
+    return {
+        "note": "HexaWetter kann externe APIs nutzen oder über docker-compose.selfhosted.yml eigene Instanzen anbinden.",
+        "open_meteo_base_url": OPEN_METEO_BASE_URL,
+        "brightsky_base_url": BRIGHTSKY_BASE_URL,
+        "dwd_radar_base_url": DWD_RADAR_BASE_URL,
+        "dwd_wms_url": DWD_WMS_URL,
+        "dwd_attribution": "Datenbasis: Deutscher Wetterdienst (DWD), Open Data.",
+        "osm_attribution": "Kartenbasis: OpenStreetMap-Mitwirkende.",
+    }
+
+
+@router.post("/radar/sync")
+async def admin_radar_sync(
+    product: str = Query(RADAR_PRODUCT, pattern="^[a-z0-9_-]+$"),
+    limit: int = Query(6, ge=1, le=50),
+    _: dict[str, Any] = Depends(require_admin),
+) -> dict[str, Any]:
+    try:
+        return await sync_radar_files(product=product, limit=limit)
+    except Exception as exc:
+        raise HTTPException(status_code=502, detail=f"Radar sync failed: {exc}") from exc
+
+
+@router.get("/radar/files")
+async def admin_radar_files(
+    product: str = Query(RADAR_PRODUCT, pattern="^[a-z0-9_-]+$"),
+    _: dict[str, Any] = Depends(require_admin),
+) -> dict[str, Any]:
+    target_dir = RAW_RADAR_DIR / "composite" / product
+    target_dir.mkdir(parents=True, exist_ok=True)
+    files = []
+    for path in sorted(target_dir.iterdir()):
+        if not path.is_file() or not RADAR_FILE_RE.fullmatch(path.name):
+            continue
+        modified = datetime.fromtimestamp(path.stat().st_mtime, timezone.utc)
+        files.append(
+            {
+                "name": path.name,
+                "size_bytes": path.stat().st_size,
+                "modified_utc": modified.isoformat(),
+                "download_url": f"/api/admin/radar/files/{product}/{path.name}",
+            }
+        )
+    return {"product": product, "path": str(target_dir), "count": len(files), "files": files}
+
+
+@router.get("/radar/files/{product}/{filename}")
+async def admin_radar_file_download(
+    product: str,
+    filename: str,
+    _: dict[str, Any] = Depends(require_admin),
+):
+    if not re.fullmatch(r"[a-z0-9_-]+", product, re.IGNORECASE):
+        raise HTTPException(status_code=400, detail="Invalid product")
+    if not RADAR_FILE_RE.fullmatch(filename):
+        raise HTTPException(status_code=400, detail="Invalid filename")
+    path = RAW_RADAR_DIR / "composite" / product / filename
+    if not path.exists():
+        raise HTTPException(status_code=404, detail="File not found")
+    media_type = "application/x-tar" if filename.lower().endswith(".tar") else "application/octet-stream"
+    return FileResponse(path, filename=filename, media_type=media_type)
+
+
+@router.get("/radar/rendered")
+async def admin_radar_rendered_list(
+    product: str = Query(RADAR_PRODUCT, pattern="^[a-z0-9_-]+$"),
+    limit: int = Query(24, ge=1, le=100),
+    _: dict[str, Any] = Depends(require_admin),
+) -> dict[str, Any]:
+    frames = await list_rendered_radar(product, limit=limit)
+    return {"product": product, "count": len(frames), "frames": frames}
+
+
+@router.get("/radar/rendered/{product}/{filename}.png")
+async def admin_radar_rendered_image(
+    product: str,
+    filename: str,
+    _: dict[str, Any] = Depends(require_admin),
+):
+    if not re.fullmatch(r"[a-z0-9_.-]+", filename, re.IGNORECASE):
+        raise HTTPException(status_code=400, detail="Invalid filename")
+    path = RENDERED_RADAR_DIR / product / f"{filename}.png"
+    if not path.exists():
+        raise HTTPException(status_code=404, detail="Rendered image not found")
+    return FileResponse(path, media_type="image/png")
+
+
 @router.post("/cache/clear")
 async def admin_clear_cache(_: dict[str, Any] = Depends(require_admin)) -> dict[str, Any]:
     from app.cache import flush_cache
diff --git a/api/app/security.py b/api/app/security.py
new file mode 100644
index 0000000..997e758
--- /dev/null
+++ b/api/app/security.py
@@ -0,0 +1,70 @@
+from __future__ import annotations
+
+import logging
+import secrets
+from typing import Iterable
+
+from fastapi import Request
+from fastapi.responses import JSONResponse
+
+from app.config import ALLOWED_HOSTS, API_KEY, REQUIRE_API_KEY
+
+logger = logging.getLogger(__name__)
+
+API_KEY_EXEMPT_PATHS: frozenset[str] = frozenset(
+    {
+        "/api/health",
+        "/api/admin/login",
+        "/api/admin/status",
+    }
+)
+
+
+def api_key_configured() -> bool:
+    return bool(API_KEY)
+
+
+def api_key_required() -> bool:
+    return REQUIRE_API_KEY or api_key_configured()
+
+
+def validate_security_config() -> None:
+    if REQUIRE_API_KEY and not API_KEY:
+        raise RuntimeError("REQUIRE_API_KEY is enabled but API_KEY is not set. Generate one with: python scripts/setup_secrets.py")
+    if API_KEY and len(API_KEY) < 24:
+        raise RuntimeError("API_KEY must be at least 24 characters")
+    if api_key_configured() and not REQUIRE_API_KEY:
+        logger.warning("API_KEY is set but REQUIRE_API_KEY=false — API key auth is still enforced when API_KEY is present")
+    if not api_key_configured() and not REQUIRE_API_KEY:
+        logger.warning("API is running without API_KEY — set API_KEY and REQUIRE_API_KEY=true for production")
+
+
+def is_api_key_exempt(path: str) -> bool:
+    return path in API_KEY_EXEMPT_PATHS
+
+
+def extract_api_key(request: Request) -> str:
+    return request.headers.get("X-API-Key", "").strip()
+
+
+def verify_request_api_key(request: Request) -> bool:
+    if not api_key_required():
+        return True
+    provided = extract_api_key(request)
+    if not provided:
+        return False
+    return secrets.compare_digest(provided, API_KEY)
+
+
+def cors_allowed_origins() -> list[str]:
+    from app.config import ALLOWED_ORIGINS
+
+    if ALLOWED_ORIGINS:
+        return list(ALLOWED_ORIGINS)
+    if api_key_required():
+        return []
+    return ["*"]
+
+
+def trusted_hosts() -> Iterable[str]:
+    return ALLOWED_HOSTS
diff --git a/api/app/services/radar_sync.py b/api/app/services/radar_sync.py
new file mode 100644
index 0000000..95afeb2
--- /dev/null
+++ b/api/app/services/radar_sync.py
@@ -0,0 +1,59 @@
+from __future__ import annotations
+
+import re
+from datetime import datetime, timedelta, timezone
+
+from app.config import RADAR_PRODUCT, RADAR_RETENTION_HOURS, RAW_RADAR_DIR
+from app.database import upsert_radar_meta
+from app.http_client import get_client
+from app.services.dwd_radar import RADAR_FILE_RE, fetch_radar_index
+
+_FILENAME_RE = re.compile(r"^[a-z0-9_-]+$", re.IGNORECASE)
+
+
+def utc_now() -> datetime:
+    return datetime.now(timezone.utc)
+
+
+def cleanup_old_radar_files() -> None:
+    cutoff = utc_now() - timedelta(hours=RADAR_RETENTION_HOURS)
+    if not RAW_RADAR_DIR.exists():
+        return
+    for path in RAW_RADAR_DIR.rglob("*"):
+        if not path.is_file() or not RADAR_FILE_RE.fullmatch(path.name):
+            continue
+        modified = datetime.fromtimestamp(path.stat().st_mtime, timezone.utc)
+        if modified < cutoff:
+            path.unlink(missing_ok=True)
+
+
+async def sync_radar_files(product: str = RADAR_PRODUCT, limit: int = 6) -> dict:
+    if not _FILENAME_RE.fullmatch(product):
+        raise ValueError("Invalid product")
+
+    latest = await fetch_radar_index(product=product, limit=limit)
+    target_dir = RAW_RADAR_DIR / "composite" / product
+    target_dir.mkdir(parents=True, exist_ok=True)
+    downloaded: list[str] = []
+    skipped: list[str] = []
+
+    client = get_client()
+    for item in latest["files"]:
+        out = target_dir / item["name"]
+        if out.exists() and out.stat().st_size > 0:
+            skipped.append(item["name"])
+            continue
+        response = await client.get(item["url"], timeout=90.0)
+        response.raise_for_status()
+        out.write_bytes(response.content)
+        downloaded.append(item["name"])
+        modified = datetime.fromtimestamp(out.stat().st_mtime, timezone.utc)
+        await upsert_radar_meta(product, item["name"], out.stat().st_size, modified, "pending")
+
+    cleanup_old_radar_files()
+    return {
+        "product": product,
+        "target_dir": str(target_dir),
+        "downloaded": downloaded,
+        "skipped": skipped,
+    }
diff --git a/api/app/services/warnings.py b/api/app/services/warnings.py
index 01b453e..049a036 100644
--- a/api/app/services/warnings.py
+++ b/api/app/services/warnings.py
@@ -86,11 +86,11 @@ async def fetch_all_warnings() -> list[dict[str, Any]]:
 
     client = get_client()
     response = await client.get(DWD_WARNINGS_URL, timeout=10.0)
-        response.raise_for_status()
-        text = response.text
-        if text.startswith("warnWetter.loadWarnings("):
-            text = text[text.index("(") + 1 : text.rindex(")")]
-        payload = json.loads(text)
+    response.raise_for_status()
+    text = response.text
+    if text.startswith("warnWetter.loadWarnings("):
+        text = text[text.index("(") + 1 : text.rindex(")")]
+    payload = json.loads(text)
 
     warnings = _flatten_warnings(payload)
     await cache_set(cache_key, warnings, CACHE_TTL_WARNINGS)
diff --git a/api/app/services/wms.py b/api/app/services/wms.py
index 5160b0d..71101bd 100644
--- a/api/app/services/wms.py
+++ b/api/app/services/wms.py
@@ -4,6 +4,7 @@ import re
 from datetime import datetime, timedelta, timezone
 from xml.etree import ElementTree as ET
 
+from app.cache import cache_get, cache_set
 from app.http_client import get_client
 from app.config import CACHE_TTL_WMS_TIMES, DWD_WMS_URL
 
@@ -59,10 +60,10 @@ async def fetch_wms_time_steps(layer: str, minutes: int = 120) -> dict:
     params = {"service": "WMS", "version": "1.3.0", "request": "GetCapabilities"}
     client = get_client()
     response = await client.get(DWD_WMS_URL, params=params, timeout=15.0)
-        response.raise_for_status()
-        dimension = _find_layer_dimension(response.text, layer)
-        if not dimension:
-            raise ValueError(f"No TIME dimension found for layer {layer}")
+    response.raise_for_status()
+    dimension = _find_layer_dimension(response.text, layer)
+    if not dimension:
+        raise ValueError(f"No TIME dimension found for layer {layer}")
 
     if "/" in dimension:
         start, end, step_minutes = _parse_time_dimension(dimension)
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diff --git a/data/raw/radar/composite/rv/composite_rv_LATEST.tar b/data/raw/radar/composite/rv/composite_rv_LATEST.tar
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diff --git a/docker-compose.yml b/docker-compose.yml
index d56c81c..8e4ff37 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -42,7 +42,7 @@ services:
     volumes:
       - ./data:/data
     ports:
-      - "${API_PORT:-8081}:8080"
+      - "127.0.0.1:${API_PORT:-8081}:8080"
     depends_on:
       postgres:
         condition: service_healthy
@@ -53,11 +53,13 @@ services:
     image: nginx:1.27-alpine
     container_name: hexawetter-frontend
     restart: unless-stopped
+    environment:
+      API_KEY: ${API_KEY:-}
     depends_on:
       - api
     volumes:
       - ./frontend:/usr/share/nginx/html:ro
-      - ./nginx.conf:/etc/nginx/conf.d/default.conf:ro
+      - ./nginx.conf.template:/etc/nginx/templates/default.conf.template:ro
     ports:
       - "${WEB_PORT:-8080}:80"
 
diff --git a/frontend/admin.html b/frontend/admin.html
index aab6682..00f0c1c 100644
--- a/frontend/admin.html
+++ b/frontend/admin.html
@@ -3,6 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <meta name="robots" content="noindex, nofollow" />
   <title>Admin – HexaWetter</title>
   <link rel="preconnect" href="https://fonts.googleapis.com" />
   <link rel="stylesheet" href="style.css" />
@@ -47,6 +48,7 @@
           </div>
           <div style="display:flex;gap:8px;flex-wrap:wrap">
             <button id="refreshBtn" class="btn btn-secondary">Aktualisieren</button>
+            <button id="syncRadarBtn" class="btn btn-secondary">Radar syncen</button>
             <button id="clearCacheBtn" class="btn btn-secondary">Redis-Cache leeren</button>
           </div>
         </div>
@@ -80,6 +82,20 @@
           </form>
           <p class="muted" id="settingsMsg" style="margin-top:10px"></p>
         </section>
+
+        <section class="glass-card">
+          <div class="section-head">
+            <div><h2>Radar-Rohdaten</h2><p class="muted no-margin">Lokale DWD-Dateien und gerenderte Frames</p></div>
+            <span class="muted" id="renderedCount">–</span>
+          </div>
+          <div class="table-wrap">
+            <table>
+              <thead><tr><th>Datei</th><th>Größe</th><th>Geändert</th><th></th></tr></thead>
+              <tbody id="radarFiles"></tbody>
+            </table>
+          </div>
+          <div class="rendered-grid" id="renderedFrames" style="margin-top:16px"></div>
+        </section>
       </section>
     </div>
   </main>
diff --git a/frontend/admin.js b/frontend/admin.js
index af302f2..82a8cb2 100644
--- a/frontend/admin.js
+++ b/frontend/admin.js
@@ -35,6 +35,67 @@ function formatBytes(bytes) {
   return `${v.toFixed(u === 0 ? 0 : 1)} ${units[u]}`;
 }
 
+async function fetchBlobUrl(path) {
+  const token = getToken();
+  const res = await fetch(path, { headers: token ? { Authorization: `Bearer ${token}` } : {} });
+  if (!res.ok) throw new Error(`${res.status}`);
+  const blob = await res.blob();
+  return URL.createObjectURL(blob);
+}
+
+async function downloadAdminFile(path, filename) {
+  const url = await fetchBlobUrl(path);
+  const a = document.createElement("a");
+  a.href = url;
+  a.download = filename;
+  a.click();
+  URL.revokeObjectURL(url);
+}
+
+async function loadRadarData() {
+  try {
+    const local = await api("/api/admin/radar/files");
+    el("radarFiles").innerHTML = local.files.length ? local.files.slice().reverse().map((file) => `
+      <tr>
+        <td>${file.name}</td>
+        <td>${formatBytes(file.size_bytes)}</td>
+        <td>${new Date(file.modified_utc).toLocaleString("de-DE")}</td>
+        <td><button type="button" class="btn btn-secondary" data-download="${file.download_url}" data-name="${file.name}">Download</button></td>
+      </tr>
+    `).join("") : `<tr><td colspan="4" class="muted">Noch keine lokalen Radar-Dateien.</td></tr>`;
+    el("radarFiles").querySelectorAll("[data-download]").forEach((btn) => {
+      btn.addEventListener("click", () => downloadAdminFile(btn.dataset.download, btn.dataset.name));
+    });
+  } catch {
+    el("radarFiles").innerHTML = `<tr><td colspan="4" class="muted">Rohdaten nicht verfügbar</td></tr>`;
+  }
+
+  try {
+    const rendered = await api("/api/admin/radar/rendered?limit=12");
+    el("renderedCount").textContent = `${rendered.count} Frame(s)`;
+    const frames = rendered.frames || [];
+    if (!frames.length) {
+      el("renderedFrames").innerHTML = `<p class="muted">Noch keine gerenderten Frames.</p>`;
+      return;
+    }
+    el("renderedFrames").innerHTML = frames.map((f, i) => `
+      <figure class="rendered-frame" id="renderedFrame${i}">
+        <div class="muted" style="padding:40px;text-align:center">Lade…</div>
+        <figcaption>${f.filename}</figcaption>
+      </figure>
+    `).join("");
+    await Promise.allSettled(frames.map(async (f, i) => {
+      const url = await fetchBlobUrl(f.image_url);
+      const figure = el(`renderedFrame${i}`);
+      if (!figure) return;
+      figure.innerHTML = `<img src="${url}" alt="Radar ${f.filename}" loading="lazy" /><figcaption>${f.filename}</figcaption>`;
+    }));
+  } catch {
+    el("renderedCount").textContent = "–";
+    el("renderedFrames").innerHTML = `<p class="muted">Renderer nicht verfügbar.</p>`;
+  }
+}
+
 function showLogin() {
   el("loginSection").classList.remove("admin-hidden");
   el("dashboardSection").classList.add("admin-hidden");
@@ -92,6 +153,7 @@ async function loadDashboard() {
   el("setCacheObs").value = overrides.cache_ttl_observations ?? defaults.cache_ttl.observations;
   el("setCacheWarn").value = overrides.cache_ttl_warnings ?? defaults.cache_ttl.warnings;
   el("setRadarRetention").value = overrides.radar_retention_hours ?? defaults.radar_retention_hours;
+  await loadRadarData();
 }
 
 el("loginForm").addEventListener("submit", async (e) => {
@@ -124,6 +186,23 @@ el("clearCacheBtn").addEventListener("click", async () => {
   await loadDashboard();
 });
 
+el("syncRadarBtn").addEventListener("click", async () => {
+  const button = el("syncRadarBtn");
+  button.disabled = true;
+  const label = button.textContent;
+  button.textContent = "Sync läuft…";
+  try {
+    const result = await api("/api/admin/radar/sync?limit=6", { method: "POST" });
+    alert(`Sync abgeschlossen: ${result.downloaded?.length || 0} neu, ${result.skipped?.length || 0} übersprungen`);
+    await loadRadarData();
+  } catch (err) {
+    alert(err.message);
+  } finally {
+    button.disabled = false;
+    button.textContent = label;
+  }
+});
+
 el("settingsForm").addEventListener("submit", async (e) => {
   e.preventDefault();
   const payload = {
diff --git a/frontend/app.js b/frontend/app.js
index b3d39c0..562368e 100644
--- a/frontend/app.js
+++ b/frontend/app.js
@@ -10,12 +10,11 @@ let layerControl = null;
 let osmLayer = null;
 let radarLayer = null;
 let warningLayer = null;
-let localRadarOverlay = null;
 let radarTimes = [];
 let radarFrameIndex = 0;
 let radarPlayTimer = null;
 let radarPlaying = false;
-let renderedFrames = [];
+let hourlyChart = null;
 let settings = loadSettings();
 let searchTimer = null;
 
@@ -44,14 +43,6 @@ function saveFavorites(items) {
   localStorage.setItem(FAV_KEY, JSON.stringify(items));
 }
 
-function formatBytes(bytes) {
-  if (!bytes) return "–";
-  const units = ["B", "KB", "MB", "GB"];
-  let value = bytes, unit = 0;
-  while (value >= 1024 && unit < units.length - 1) { value /= 1024; unit++; }
-  return `${value.toFixed(unit === 0 ? 0 : 1)} ${units[unit]}`;
-}
-
 function weatherText(code) {
   const map = {
     0: "Klar", 1: "Überwiegend klar", 2: "Teils bewölkt", 3: "Bewölkt",
@@ -74,6 +65,139 @@ function convertWind(kmh) {
   return `${Math.round(kmh)} km/h`;
 }
 
+function tempValue(celsius) {
+  if (settings.unitTemp === "fahrenheit") return celsius * 9 / 5 + 32;
+  return celsius;
+}
+
+function tempUnitLabel() {
+  return settings.unitTemp === "fahrenheit" ? "°F" : "°C";
+}
+
+function windUnitLabel() {
+  if (settings.unitWind === "ms") return "m/s";
+  if (settings.unitWind === "kn") return "kn";
+  return "km/h";
+}
+
+function windValue(kmh) {
+  if (settings.unitWind === "ms") return kmh / 3.6;
+  if (settings.unitWind === "kn") return kmh * 0.539957;
+  return kmh;
+}
+
+function chartThemeColors() {
+  const isLight = document.documentElement.dataset.theme === "light";
+  return {
+    text: isLight ? "#5f5380" : "#cfc9dd",
+    grid: isLight ? "rgba(20, 10, 60, 0.08)" : "rgba(255, 255, 255, 0.08)",
+  };
+}
+
+function destroyHourlyChart() {
+  if (hourlyChart) {
+    hourlyChart.destroy();
+    hourlyChart = null;
+  }
+}
+
+function renderHourlyChart(hourly) {
+  if (typeof Chart === "undefined" || !hourly?.time?.length) return;
+  const canvas = el("hourlyChart");
+  if (!canvas) return;
+
+  destroyHourlyChart();
+  const { text: textColor, grid: gridColor } = chartThemeColors();
+  const tempUnit = tempUnitLabel();
+  const windUnit = windUnitLabel();
+  const labels = hourly.time.slice(0, 48).map((time) =>
+    new Date(time).toLocaleString("de-DE", { weekday: "short", day: "2-digit", hour: "2-digit", minute: "2-digit" })
+  );
+
+  hourlyChart = new Chart(canvas, {
+    type: "line",
+    data: {
+      labels,
+      datasets: [
+        {
+          type: "bar",
+          label: "Regenwahrscheinlichkeit",
+          data: hourly.precipitation_probability.slice(0, 48).map((v) => v ?? 0),
+          yAxisID: "yRain",
+          backgroundColor: "rgba(57, 120, 255, 0.42)",
+          borderColor: "rgba(57, 120, 255, 0.7)",
+          borderWidth: 1,
+          borderRadius: 4,
+          order: 3,
+        },
+        {
+          label: `Temperatur (${tempUnit})`,
+          data: hourly.temperature_2m.slice(0, 48).map(tempValue),
+          yAxisID: "yMain",
+          borderColor: "#ff51f9",
+          backgroundColor: "rgba(255, 81, 249, 0.14)",
+          fill: true,
+          tension: 0.35,
+          pointRadius: 0,
+          pointHoverRadius: 4,
+          borderWidth: 2.5,
+          order: 1,
+        },
+        {
+          label: `Wind (${windUnit})`,
+          data: hourly.wind_speed_10m.slice(0, 48).map((v) => windValue(v ?? 0)),
+          yAxisID: "yMain",
+          borderColor: "#a348ff",
+          borderDash: [5, 4],
+          tension: 0.35,
+          pointRadius: 0,
+          borderWidth: 1.5,
+          fill: false,
+          order: 2,
+        },
+      ],
+    },
+    options: {
+      responsive: true,
+      maintainAspectRatio: false,
+      interaction: { mode: "index", intersect: false },
+      plugins: {
+        legend: {
+          labels: { color: textColor, usePointStyle: true, boxWidth: 10 },
+        },
+        tooltip: {
+          callbacks: {
+            label(ctx) {
+              const label = ctx.dataset.label || "";
+              if (label.startsWith("Regen")) return `${label}: ${ctx.parsed.y}%`;
+              if (label.startsWith("Temperatur")) return `${label}: ${Math.round(ctx.parsed.y)} ${tempUnit}`;
+              return `${label}: ${ctx.parsed.y.toFixed(1)} ${windUnit}`;
+            },
+          },
+        },
+      },
+      scales: {
+        x: {
+          ticks: { color: textColor, maxRotation: 0, autoSkip: true, maxTicksLimit: 14 },
+          grid: { color: gridColor },
+        },
+        yMain: {
+          position: "left",
+          ticks: { color: textColor },
+          grid: { color: gridColor },
+        },
+        yRain: {
+          position: "right",
+          min: 0,
+          max: 100,
+          grid: { drawOnChartArea: false },
+          ticks: { color: textColor, callback: (v) => `${v}%` },
+        },
+      },
+    },
+  });
+}
+
 async function api(path, options = {}) {
   const res = await fetch(path, options);
   if (!res.ok) {
@@ -126,15 +250,6 @@ async function loadHealth() {
   }
 }
 
-async function loadSourceStatus() {
-  try {
-    const data = await api("/api/health/sources");
-    renderSourceStatus(data.sources || []);
-  } catch {
-    el("sourceStatusSummary").textContent = "Quellenstatus nicht verfügbar";
-  }
-}
-
 function applyDashboard(dash) {
   const loc = getLocation();
   if (dash.forecast?.data) {
@@ -207,18 +322,6 @@ function applyWarningsData(data) {
   `).join("") : `<p class="muted">${localOnly ? "Keine aktiven Warnungen für deinen Standort." : "Keine Warnungen verfügbar."}</p>`;
 }
 
-function renderSourceStatus(sources) {
-  const bad = sources.filter((s) => s.status === "error").length;
-  el("sourceStatusSummary").textContent = bad ? `${bad} Quelle(n) mit Problemen` : "Alle Quellen erreichbar";
-  el("sourceStatusGrid").innerHTML = sources.map((s) => `
-    <div class="source-status ${s.status}">
-      <strong>${s.name}</strong>
-      <span>${s.status}${s.latency_ms ? ` · ${s.latency_ms} ms` : ""}</span>
-      ${s.error ? `<small>${s.error}</small>` : ""}
-    </div>
-  `).join("");
-}
-
 async function loadForecast() {
   const loc = getLocation();
   const data = await api(`/api/forecast?lat=${loc.lat}&lon=${loc.lon}`);
@@ -270,6 +373,7 @@ function renderHourly(hourly) {
       <td>${convertWind(hourly.wind_gusts_10m[idx] ?? 0)}</td>
     </tr>
   `).join("");
+  renderHourlyChart(hourly);
 }
 
 function renderHourStrip(hourly) {
@@ -306,33 +410,7 @@ async function loadWarnings() {
   const localOnly = el("warningsLocalOnly")?.checked ?? true;
   try {
     const data = await api(`/api/warnings?lat=${loc.lat}&lon=${loc.lon}&local_only=${localOnly}`);
-    const warnings = data.warnings || [];
-    el("warnCount").textContent = String(data.count_local ?? warnings.length);
-    el("warnMeta").textContent = localOnly
-      ? `${warnings.length} Warnung(en) für deinen Standort`
-      : `${data.count_total} Warnungen bundesweit (Top ${warnings.length})`;
-
-    const warncellEl = el("warncellInfo");
-    if (localOnly && data.warncells?.length) {
-      warncellEl.classList.remove("hidden");
-      warncellEl.innerHTML = `Zugeordnete Warngebiete: ${data.warncells.map((a) => `<strong>${a.name}</strong> (${a.warncell_id})`).join(" · ")}`;
-    } else {
-      warncellEl.classList.add("hidden");
-      warncellEl.innerHTML = "";
-    }
-
-    el("warningsList").innerHTML = warnings.length ? warnings.map((w) => `
-      <article class="warning-card ${warnLevelClass(w.level)}">
-        <div class="warning-head">
-          <strong>${w.headline || w.event}</strong>
-          <span class="warn-badge">Level ${w.level} · ${w.level_label}</span>
-        </div>
-        <p class="muted">${w.region_name || ""} · ${w.state || ""}</p>
-        <p>${(w.description || "").replace(/\n/g, "<br>")}</p>
-        ${w.instruction ? `<p class="instruction">${w.instruction}</p>` : ""}
-        <small class="muted">Gültig: ${w.start ? formatDateTime(w.start) : "–"} – ${w.end ? formatDateTime(w.end) : "–"}</small>
-      </article>
-    `).join("") : `<p class="muted">${localOnly ? "Keine aktiven Warnungen für deinen Standort." : "Keine Warnungen verfügbar."}</p>`;
+    applyWarningsData(data);
   } catch (err) {
     el("warnCount").textContent = "–";
     el("warnMeta").textContent = err.message;
@@ -341,56 +419,6 @@ async function loadWarnings() {
   }
 }
 
-async function loadRadarFiles() {
-  const latest = await api("/api/radar/latest?limit=12");
-  el("radarCount").textContent = `${latest.count} online`;
-  el("radarMeta").textContent = `Produkt ${latest.product.toUpperCase()} · DWD OpenData`;
-  const local = await api("/api/radar/files");
-  el("radarFiles").innerHTML = local.files.length ? local.files.slice().reverse().map((file) => `
-    <tr><td>${file.name}</td><td>${formatBytes(file.size_bytes)}</td>
-    <td>${new Date(file.modified_utc).toLocaleString("de-DE")}</td>
-    <td><a href="${file.download_url}">Download</a></td></tr>
-  `).join("") : `<tr><td colspan="4" class="muted">Noch keine lokalen Radar-Dateien.</td></tr>`;
-  try {
-    const rendered = await api("/api/radar/rendered?limit=12");
-    renderedFrames = rendered.frames || [];
-    el("renderedCount").textContent = `${rendered.count} Frame(s)`;
-    el("renderedFrames").innerHTML = renderedFrames.length ? renderedFrames.map((f) => `
-      <figure class="rendered-frame">
-        <img src="${f.image_url}" alt="Radar ${f.filename}" loading="lazy" />
-        <figcaption>${f.filename}</figcaption>
-      </figure>
-    `).join("") : `<p class="muted">Noch keine gerenderten Frames. Renderer-Worker abwarten.</p>`;
-  } catch {
-    el("renderedCount").textContent = "–";
-    el("renderedFrames").innerHTML = `<p class="muted">Renderer nicht verfügbar.</p>`;
-  }
-}
-
-async function syncRadar() {
-  const button = el("syncRadarBtn");
-  button.disabled = true;
-  button.textContent = "Sync läuft…";
-  try {
-    await api("/api/radar/sync?limit=6", { method: "POST" });
-    await loadRadarFiles();
-  } finally {
-    button.disabled = false;
-    button.textContent = "Radar jetzt syncen";
-  }
-}
-
-async function loadSources() {
-  try {
-    const data = await api("/api/sources");
-    el("sourceList").innerHTML = Object.entries(data).map(([key, value]) => `
-      <div class="source-item"><span>${key}</span><code>${String(value)}</code></div>
-    `).join("");
-  } catch (err) {
-    el("sourceList").innerHTML = `<p class="muted">${err.message}</p>`;
-  }
-}
-
 function setRadarTime(index) {
   if (!radarTimes.length) return;
   radarFrameIndex = Math.max(0, Math.min(index, radarTimes.length - 1));
@@ -399,24 +427,11 @@ function setRadarTime(index) {
   el("radarTimeLabel").textContent = formatDateTime(time);
   el("radarFrameInfo").textContent = `Frame ${radarFrameIndex + 1} / ${radarTimes.length}`;
 
-  if (el("useLocalRadar").checked && renderedFrames.length) {
-    showLocalRadarFrame(radarFrameIndex);
-  } else if (radarLayer) {
+  if (radarLayer) {
     radarLayer.setParams({ TIME: time, _cache: Date.now() });
   }
 }
 
-function showLocalRadarFrame(index) {
-  if (!map) return;
-  const frame = renderedFrames[Math.min(index, renderedFrames.length - 1)];
-  if (!frame?.bounds) return;
-  const b = frame.bounds;
-  const bounds = [[b.south, b.west], [b.north, b.east]];
-  if (localRadarOverlay) map.removeLayer(localRadarOverlay);
-  localRadarOverlay = L.imageOverlay(frame.image_url + `?t=${Date.now()}`, bounds, { opacity: 0.75 });
-  localRadarOverlay.addTo(map);
-}
-
 async function loadRadarTimes() {
   const layer = radarLayer?.wmsParams?.layers || "dwd:Niederschlagsradar";
   const minutes = settings.radarMinutes || 120;
@@ -600,11 +615,33 @@ function activateView(name) {
   document.querySelectorAll(".view").forEach((view) => view.classList.toggle("active", view.dataset.view === name));
   if (name === "radar") initMap().then(() => setTimeout(() => map?.invalidateSize(), 150));
   if (name === "warnings") loadWarnings();
+  if (name === "hourly" && hourlyChart) setTimeout(() => hourlyChart.resize(), 80);
+}
+
+async function loadDashboard() {
+  const loc = getLocation();
+  const localOnly = el("warningsLocalOnly")?.checked ?? true;
+  const dash = await api(`/api/dashboard?lat=${loc.lat}&lon=${loc.lon}&local_only=${localOnly}`);
+  applyDashboard(dash);
+  if (dash.bundle_cached) {
+    el("forecastSource").textContent += " · Bundle-Cache";
+  }
+  return dash;
 }
 
 async function loadAll() {
-  await loadHealth();
-  await Promise.allSettled([loadForecast(), loadObservations(), loadRadarFiles(), loadSources(), loadWarnings()]);
+  loadHealth();
+  const loc = getLocation();
+  try {
+    await loadDashboard();
+  } catch {
+    await Promise.allSettled([loadForecast(), loadObservations(), loadWarnings()]);
+    const radar = await api("/api/radar/latest?limit=12").catch(() => null);
+    if (radar) {
+      el("radarCount").textContent = `${radar.count} online`;
+      el("radarMeta").textContent = `Produkt ${radar.product.toUpperCase()} · DWD OpenData`;
+    }
+  }
   updateMapLocation();
   if (map) loadRadarTimes();
 }
@@ -614,20 +651,17 @@ async function init() {
   await loadDefaultLocation();
   renderFavorites();
   await loadAll();
-  setInterval(loadHealth, 30000);
+  setInterval(loadHealth, 60000);
 }
 
 document.querySelectorAll(".tab").forEach((tab) => tab.addEventListener("click", () => activateView(tab.dataset.view)));
 el("loadBtn").addEventListener("click", loadAll);
-el("syncRadarBtn").addEventListener("click", syncRadar);
 el("centerMapBtn").addEventListener("click", updateMapLocation);
 el("reloadRadarLayersBtn").addEventListener("click", reloadRadarLayers);
 el("favBtn").addEventListener("click", addFavorite);
 el("geoBtn").addEventListener("click", useGeolocation);
 el("warningsLocalOnly")?.addEventListener("change", loadWarnings);
 el("showWarningsOnMap")?.addEventListener("change", toggleWarningsOnMap);
-el("useLocalRadar")?.addEventListener("change", () => setRadarTime(radarFrameIndex));
-
 el("radarPlayBtn").addEventListener("click", toggleRadarPlay);
 el("radarPrevBtn").addEventListener("click", () => setRadarTime(radarFrameIndex - 1));
 el("radarNextBtn").addEventListener("click", () => setRadarTime(radarFrameIndex + 1));
@@ -647,6 +681,7 @@ el("themeToggle").addEventListener("click", () => {
   settings.theme = settings.theme === "dark" ? "light" : "dark";
   saveSettings();
   applyTheme();
+  if (latestForecast?.data?.hourly) renderHourlyChart(latestForecast.data.hourly);
 });
 
 ["unitTemp", "unitWind", "radarMinutes"].forEach((id) => {
@@ -656,7 +691,12 @@ el("themeToggle").addEventListener("click", () => {
     if (id === "unitWind") settings.unitWind = e.target.value;
     if (id === "radarMinutes") settings.radarMinutes = Number(e.target.value);
     saveSettings();
-    if (latestForecast) { renderDaily(latestForecast.data.daily); renderHourly(latestForecast.data.hourly); renderHourStrip(latestForecast.data.hourly); loadForecast(); }
+    if (latestForecast) {
+      renderDaily(latestForecast.data.daily);
+      renderHourly(latestForecast.data.hourly);
+      renderHourStrip(latestForecast.data.hourly);
+      loadForecast();
+    }
     if (id === "radarMinutes" && map) loadRadarTimes();
   });
 });
diff --git a/frontend/index.html b/frontend/index.html
index 174ea5c..eacbfa8 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -73,7 +73,6 @@
         <button class="tab" data-view="warnings">Warnungen</button>
         <button class="tab" data-view="hourly">Stunden</button>
         <button class="tab" data-view="daily">7 Tage</button>
-        <button class="tab" data-view="raw">Rohdaten</button>
         <button class="tab" data-view="settings">Einstellungen</button>
       </nav>
 
@@ -92,10 +91,6 @@
           <div class="section-head"><h2>Kurzvorschau</h2><span class="muted">Nächste Stunden</span></div>
           <div class="hour-strip" id="hourStrip"></div>
         </section>
-        <section class="glass-card">
-          <div class="section-head"><h2>Datenquellen-Status</h2><span class="muted" id="sourceStatusSummary">Prüfe…</span></div>
-          <div class="source-status-grid" id="sourceStatusGrid"></div>
-        </section>
       </section>
 
       <section class="view" data-view="radar">
@@ -116,7 +111,6 @@
               <input id="radarSlider" type="range" min="0" max="0" value="0" />
             </div>
             <div class="timeline-meta">
-              <label class="inline-check"><input type="checkbox" id="useLocalRadar" /> Lokale Render-Frames</label>
               <label class="inline-check"><input type="checkbox" id="showWarningsOnMap" checked /> Warnungen</label>
               <span class="muted" id="radarFrameInfo"></span>
             </div>
@@ -144,8 +138,21 @@
 
       <section class="view" data-view="hourly">
         <section class="glass-card">
-          <div class="section-head"><h2>Stundenansicht</h2><span class="muted">48 Stunden</span></div>
-          <div class="table-wrap"><table><thead><tr><th>Zeit</th><th>Wetter</th><th>Temp.</th><th>Regen</th><th>Wolken</th><th>Wind</th><th>Böen</th></tr></thead><tbody id="hourlyTable"></tbody></table></div>
+          <div class="section-head">
+            <h2>Stundenansicht</h2>
+            <span class="muted">48 Stunden · Temperatur, Regen & Wind</span>
+          </div>
+          <div class="hourly-chart-wrap">
+            <canvas id="hourlyChart" aria-label="Stundenverlauf Temperatur, Regen und Wind"></canvas>
+          </div>
+          <div class="table-wrap">
+            <table>
+              <thead>
+                <tr><th>Zeit</th><th>Wetter</th><th>Temp.</th><th>Regen</th><th>Wolken</th><th>Wind</th><th>Böen</th></tr>
+              </thead>
+              <tbody id="hourlyTable"></tbody>
+            </table>
+          </div>
         </section>
       </section>
 
@@ -156,24 +163,6 @@
         </section>
       </section>
 
-      <section class="view" data-view="raw">
-        <section class="glass-card">
-          <div class="section-head">
-            <div><h2>Radar-Rohdaten</h2><p class="muted no-margin">DWD OpenData · lokaler Renderer</p></div>
-            <button id="syncRadarBtn" class="btn btn-secondary">Sync starten</button>
-          </div>
-          <div class="table-wrap"><table><thead><tr><th>Datei</th><th>Größe</th><th>Geändert</th><th>Download</th></tr></thead><tbody id="radarFiles"></tbody></table></div>
-        </section>
-        <section class="glass-card">
-          <div class="section-head"><h2>Gerenderte Frames</h2><span class="muted" id="renderedCount"></span></div>
-          <div class="rendered-grid" id="renderedFrames"></div>
-        </section>
-        <section class="glass-card">
-          <div class="section-head"><h2>Datenquellen</h2></div>
-          <div class="source-list" id="sourceList"></div>
-        </section>
-      </section>
-
       <section class="view" data-view="settings">
         <section class="glass-card">
           <h2>Einstellungen</h2>
@@ -213,6 +202,7 @@
   </footer>
 
   <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
+  <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.7/dist/chart.umd.min.js"></script>
   <script src="app.js"></script>
 </body>
 </html>
diff --git a/frontend/style.css b/frontend/style.css
index 10cfd40..80a360b 100644
--- a/frontend/style.css
+++ b/frontend/style.css
@@ -307,6 +307,19 @@ html[data-theme="light"] .search-results { background: #fff; }
   grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
   gap: 12px;
 }
+
+.hourly-chart-wrap {
+  position: relative;
+  height: min(340px, 48vh);
+  margin-bottom: 1.25rem;
+  padding: 0.75rem 0.5rem 0.25rem;
+  border: 1px solid var(--glass-border);
+  border-radius: var(--radius-xl);
+  background: rgba(0, 0, 0, 0.14);
+}
+html[data-theme="light"] .hourly-chart-wrap {
+  background: rgba(255, 255, 255, 0.55);
+}
 .hour-card span { display: block; font-size: 1.35rem; font-weight: 800; margin: 0.4rem 0; }
 .bar { height: 6px; border-radius: 999px; overflow: hidden; background: rgba(255,255,255,0.12); margin: 0.7rem 0; }
 .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent-color-2), var(--primary-color)); }
diff --git a/nginx.conf b/nginx.conf.template
similarity index 92%
rename from nginx.conf
rename to nginx.conf.template
index 687b7b0..249e044 100644
--- a/nginx.conf
+++ b/nginx.conf.template
@@ -14,6 +14,7 @@ server {
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-API-Key ${API_KEY};
         proxy_connect_timeout 10s;
         proxy_read_timeout 120s;
     }
diff --git a/scripts/hash_admin_password.py b/scripts/hash_admin_password.py
index 8474243..e80f40b 100644
--- a/scripts/hash_admin_password.py
+++ b/scripts/hash_admin_password.py
@@ -1,38 +1,10 @@
 #!/usr/bin/env python3
-"""Generate bcrypt hash and JWT secret for HexaWetter admin login."""
+"""Deprecated wrapper — use scripts/setup_secrets.py instead."""
 from __future__ import annotations
 
-import argparse
-import secrets
-
-import bcrypt
-
-
-def hash_password(plain_password: str) -> str:
-    return bcrypt.hashpw(plain_password.encode("utf-8"), bcrypt.gensalt()).decode("utf-8")
-
-
-def docker_compose_escape(value: str) -> str:
-    """Escape $ for docker compose .env interpolation ($$ -> literal $)."""
-    return value.replace("$", "$$")
-
-
-def main() -> None:
-    parser = argparse.ArgumentParser(description="Generate HexaWetter admin credentials")
-    parser.add_argument("password", help="Admin password (min. 8 characters)")
-    args = parser.parse_args()
-    if len(args.password) < 8:
-        raise SystemExit("Password must be at least 8 characters")
-
-    password_hash = hash_password(args.password)
-    jwt_secret = secrets.token_urlsafe(48)
-
-    print("Add these lines to your .env file:\n")
-    print("ADMIN_USERNAME=admin")
-    print(f"ADMIN_PASSWORD_HASH={docker_compose_escape(password_hash)}")
-    print(f"ADMIN_JWT_SECRET={jwt_secret}")
-    print("\n# Hinweis: bcrypt-Hashes enthalten $. Fuer docker compose muss jedes $ als $$ escaped sein.")
-
+import runpy
+import sys
 
 if __name__ == "__main__":
-    main()
+    sys.argv[0] = "scripts/setup_secrets.py"
+    runpy.run_path("scripts/setup_secrets.py", run_name="__main__")
diff --git a/scripts/setup_secrets.py b/scripts/setup_secrets.py
new file mode 100644
index 0000000..8e6eacf
--- /dev/null
+++ b/scripts/setup_secrets.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+"""Generate API key and admin credentials for HexaWetter."""
+from __future__ import annotations
+
+import argparse
+import secrets
+
+import bcrypt
+
+
+def hash_password(plain_password: str) -> str:
+    return bcrypt.hashpw(plain_password.encode("utf-8"), bcrypt.gensalt()).decode("utf-8")
+
+
+def docker_compose_escape(value: str) -> str:
+    """Escape $ for docker compose .env interpolation ($$ -> literal $)."""
+    return value.replace("$", "$$")
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Generate HexaWetter security secrets")
+    parser.add_argument("password", nargs="?", help="Admin password (min. 8 characters)")
+    parser.add_argument("--api-key-only", action="store_true", help="Only generate API_KEY")
+    args = parser.parse_args()
+
+    api_key = secrets.token_urlsafe(32)
+    print("Add these lines to your .env file:\n")
+    print(f"API_KEY={api_key}")
+    print("REQUIRE_API_KEY=true")
+
+    if args.api_key_only:
+        return
+
+    if not args.password:
+        raise SystemExit("Admin password required unless --api-key-only is set")
+    if len(args.password) < 8:
+        raise SystemExit("Password must be at least 8 characters")
+
+    password_hash = hash_password(args.password)
+    jwt_secret = secrets.token_urlsafe(48)
+
+    print()
+    print("ADMIN_USERNAME=admin")
+    print(f"ADMIN_PASSWORD_HASH={docker_compose_escape(password_hash)}")
+    print(f"ADMIN_JWT_SECRET={jwt_secret}")
+    print("\n# Hinweis: bcrypt-Hashes enthalten $. Fuer docker compose muss jedes $ als $$ escaped sein.")
+
+
+if __name__ == "__main__":
+    main()