diff --git a/api/advent22_api/core/calendar_config.py b/api/advent22_api/core/calendar_config.py
index 5ff844f..6760f09 100644
--- a/api/advent22_api/core/calendar_config.py
+++ b/api/advent22_api/core/calendar_config.py
@@ -27,6 +27,9 @@ class CalendarConfig(BaseModel):
     # Dateiname Hintergrundbild
     background: str = "adventskalender.jpg"
 
+    # Dateiname Favicon
+    favicon: str = "favicon.png"
+
     # Türen für die UI
     doors: DoorsSaved = []
 
diff --git a/api/advent22_api/core/helpers.py b/api/advent22_api/core/helpers.py
index 7bd3f2f..e33db43 100644
--- a/api/advent22_api/core/helpers.py
+++ b/api/advent22_api/core/helpers.py
@@ -114,9 +114,27 @@ async def load_image(file_name: str) -> Image.Image:
     return Image.open(BytesIO(await WebDAV.read_bytes(file_name)))
 
 
-async def api_return_image(img: Image.Image) -> StreamingResponse:
+async def api_return_ico(img: Image.Image) -> StreamingResponse:
     """
-    Bild mit API zurückgeben
+    ICO-Bild mit API zurückgeben
+    """
+
+    # JPEG-Daten in Puffer speichern
+    img_buffer = BytesIO()
+    img.resize(size=(256, 256), resample=Image.LANCZOS)
+    img.save(img_buffer, format="ICO")
+    img_buffer.seek(0)
+
+    # zurückgeben
+    return StreamingResponse(
+        media_type="image/x-icon",
+        content=img_buffer,
+    )
+
+
+async def api_return_jpeg(img: Image.Image) -> StreamingResponse:
+    """
+    JPEG-Bild mit API zurückgeben
     """
 
     # JPEG-Daten in Puffer speichern
diff --git a/api/advent22_api/routers/admin.py b/api/advent22_api/routers/admin.py
index 979f66b..31fb3da 100644
--- a/api/advent22_api/routers/admin.py
+++ b/api/advent22_api/routers/admin.py
@@ -44,6 +44,7 @@ class ConfigModel(BaseModel):
     class __Calendar(BaseModel):
         config_file: str
         background: str
+        favicon: str
 
     class __Font(BaseModel):
         file: str
@@ -93,6 +94,7 @@ async def get_config_model(
             "calendar": {
                 "config_file": cfg.calendar,
                 "background": cal_cfg.background,
+                "favicon": cal_cfg.favicon,
             },
             "image": cfg.image,
             "fonts": [
diff --git a/api/advent22_api/routers/user.py b/api/advent22_api/routers/user.py
index 673c5c1..e6c19c0 100644
--- a/api/advent22_api/routers/user.py
+++ b/api/advent22_api/routers/user.py
@@ -7,7 +7,7 @@ from PIL import Image
 from ..core.calendar_config import CalendarConfig, DoorsSaved, get_calendar_config
 from ..core.config import Config, get_config
 from ..core.depends import get_all_event_dates, get_day_image
-from ..core.helpers import EventDates, api_return_image, load_image
+from ..core.helpers import EventDates, api_return_ico, api_return_jpeg, load_image
 from ._security import user_can_view_day, user_is_admin, user_visible_days
 
 router = APIRouter(prefix="/user", tags=["user"])
@@ -24,7 +24,29 @@ async def get_background_image(
     Hintergrundbild laden
     """
 
-    return await api_return_image(await load_image(f"files/{cal_cfg.background}"))
+    return await api_return_jpeg(await load_image(f"files/{cal_cfg.background}"))
+
+
+@router.get(
+    "/favicon",
+    response_class=StreamingResponse,
+)
+async def get_favicon(
+    cal_cfg: CalendarConfig = Depends(get_calendar_config),
+) -> StreamingResponse:
+    """
+    Favicon laden
+    """
+
+    try:
+        return await api_return_ico(await load_image(f"files/{cal_cfg.favicon}"))
+
+    except RuntimeError:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
+
+
+# - favicon
+# - "user-config-model"
 
 
 @router.get("/title")
@@ -82,7 +104,7 @@ async def get_image_for_day(
             status.HTTP_404_NOT_FOUND, "Ich habe heute leider kein Foto für dich."
         )
 
-    return await api_return_image(image)
+    return await api_return_jpeg(image)
 
 
 @router.get("/next_door")
diff --git a/ui/public/favicon.ico b/ui/public/favicon.ico
index df36fcf..c7ab788 100644
Binary files a/ui/public/favicon.ico and b/ui/public/favicon.ico differ
diff --git a/ui/src/components/admin/ConfigView.vue b/ui/src/components/admin/ConfigView.vue
index 86be5bc..4468da2 100644
--- a/ui/src/components/admin/ConfigView.vue
+++ b/ui/src/components/admin/ConfigView.vue
@@ -79,6 +79,9 @@
               <dt>Hintergrundbild</dt>
               <dd>{{ config_model.calendar.background }}</dd>
 
+              <dt>Favicon</dt>
+              <dd>{{ admin_config_model.calendar.favicon }}</dd>
+
               <dt>Türchen ({{ doors.length }} Stück)</dt>
               <dd>
                 <template v-for="(door, index) in doors" :key="`door-${index}`">
@@ -194,7 +197,8 @@ export default class extends Vue {
     },
     calendar: {
       config_file: "lorem ipsum",
-      background: "dolor sit amet",
+      background: "dolor sit",
+      favicon: "sit amet",
     },
     image: {
       size: 500,
diff --git a/ui/src/plugins/store.ts b/ui/src/plugins/store.ts
index a38343a..1d69e3c 100644
--- a/ui/src/plugins/store.ts
+++ b/ui/src/plugins/store.ts
@@ -9,11 +9,27 @@ const empty_creds = () => ["", ""] as Credentials;
 export const advent22Store = defineStore({
   id: "advent22",
 
-  state: () => ({
-    api_creds: empty_creds(),
-    is_admin: false,
-    is_touch_device: check_touch_device(),
-  }),
+  state: () => {
+    ADVENT22.api_get_blob("user/favicon")
+      .then((favicon_src) => {
+        const link: HTMLLinkElement =
+          document.querySelector("link[rel*='icon']") ||
+          document.createElement("link");
+        link.rel = "shortcut icon";
+        link.type = "image/x-icon";
+        link.href = favicon_src;
+
+        if (link.parentElement === null)
+          document.getElementsByTagName("head")[0].appendChild(link);
+      })
+      .catch(() => {});
+
+    return {
+      api_creds: empty_creds(),
+      is_admin: false,
+      is_touch_device: check_touch_device(),
+    };
+  },
 
   getters: {
     axios_creds: (state): AxiosBasicCredentials => {