diff --git a/js/src/App.vue b/js/src/App.vue
index 309331248..ea588d7fb 100644
--- a/js/src/App.vue
+++ b/js/src/App.vue
@@ -70,7 +70,7 @@ import { Route } from "vue-router";
   },
   metaInfo() {
     return {
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/components/Error.vue b/js/src/components/Error.vue
index 30af0c4f3..9529cd991 100644
--- a/js/src/components/Error.vue
+++ b/js/src/components/Error.vue
@@ -174,7 +174,7 @@ import RouteName from "@/router/name";
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
       // @ts-ignore
       title: this.$t("Error") as string,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/Group/MyGroups.vue b/js/src/views/Group/MyGroups.vue
index 6adbabf2b..714942c33 100644
--- a/js/src/views/Group/MyGroups.vue
+++ b/js/src/views/Group/MyGroups.vue
@@ -109,7 +109,7 @@ import RouteName from "../../router/name";
   metaInfo() {
     return {
       title: this.$t("My groups") as string,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/Group/Timeline.vue b/js/src/views/Group/Timeline.vue
index e4b9944fb..4b36333b3 100644
--- a/js/src/views/Group/Timeline.vue
+++ b/js/src/views/Group/Timeline.vue
@@ -215,7 +215,7 @@ export type ActivityFilter = ActivityType | ActivityAuthorFilter | null;
         // @ts-ignore
         group: this.group?.name,
       }) as string,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/Home.vue b/js/src/views/Home.vue
index f4c2ff0b4..648d9d576 100644
--- a/js/src/views/Home.vue
+++ b/js/src/views/Home.vue
@@ -357,7 +357,7 @@ const EVENT_PAGE_LIMIT = 99;
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
       // @ts-ignore
       title: this.instanceName,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/Moderation/Report.vue b/js/src/views/Moderation/Report.vue
index 71094d796..f4a7da75d 100644
--- a/js/src/views/Moderation/Report.vue
+++ b/js/src/views/Moderation/Report.vue
@@ -323,7 +323,7 @@ import { ApolloCache, FetchResult } from "@apollo/client/core";
   metaInfo() {
     return {
       title: this.$t("Report") as string,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/Posts/Edit.vue b/js/src/views/Posts/Edit.vue
index 7719011fc..82cb90d65 100644
--- a/js/src/views/Posts/Edit.vue
+++ b/js/src/views/Posts/Edit.vue
@@ -189,7 +189,7 @@ import PostMixin from "../../mixins/post";
         ? (this.$t("Edit post") as string)
         : (this.$t("Add a new post") as string),
       // all titles will be injected into this template
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/Posts/Post.vue b/js/src/views/Posts/Post.vue
index 4700d7c37..f4f90a5f0 100644
--- a/js/src/views/Posts/Post.vue
+++ b/js/src/views/Posts/Post.vue
@@ -284,7 +284,9 @@ import PostMixin from "../../mixins/post";
       // all titles will be injected into this template
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
       // @ts-ignore
-      titleTemplate: this.post ? "%s | Mobilizon" : "Mobilizon",
+      titleTemplate: this.post
+        ? "%s | cottbus.vonunten.org"
+        : "cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/Search.vue b/js/src/views/Search.vue
index 6167ae044..d173bce0c 100644
--- a/js/src/views/Search.vue
+++ b/js/src/views/Search.vue
@@ -312,7 +312,7 @@ const GEOHASH_DEPTH = 9; // put enough accuracy, radius will be used anyway
   metaInfo() {
     return {
       title: this.$t("Explore events") as string,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
 })
diff --git a/js/src/views/User/Login.vue b/js/src/views/User/Login.vue
index 08d0b6204..c535c3316 100644
--- a/js/src/views/User/Login.vue
+++ b/js/src/views/User/Login.vue
@@ -167,7 +167,7 @@ import AuthProviders from "../../components/User/AuthProviders.vue";
   metaInfo() {
     return {
       title: this.$t("Login on Mobilizon!") as string,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
       meta: [{ name: "robots", content: "noindex" }],
     };
   },
diff --git a/js/src/views/User/Register.vue b/js/src/views/User/Register.vue
index 844d6fd9d..6bea1a4f4 100644
--- a/js/src/views/User/Register.vue
+++ b/js/src/views/User/Register.vue
@@ -212,7 +212,7 @@ type credentials = { email: string; password: string; locale: string };
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
       // @ts-ignore
       title: this.title,
-      titleTemplate: "%s | Mobilizon",
+      titleTemplate: "%s | cottbus.vonunten.org",
     };
   },
   apollo: {
diff --git a/lib/service/metadata/event.ex b/lib/service/metadata/event.ex
index aa6011e93..d757ee97b 100644
--- a/lib/service/metadata/event.ex
+++ b/lib/service/metadata/event.ex
@@ -15,7 +15,7 @@ defimpl Mobilizon.Service.Metadata, for: Mobilizon.Events.Event do
     formatted_description = description(event, locale)
 
     tags = [
-      Tag.content_tag(:title, event.title <> " - Mobilizon"),
+      Tag.content_tag(:title, event.title <> " - cottbus.vonunten.org"),
       Tag.tag(:meta, name: "description", content: process_description(event.description, locale)),
       Tag.tag(:meta, property: "og:title", content: event.title),
       Tag.tag(:meta, property: "og:url", content: event.url),
diff --git a/test/service/metadata/metadata_test.exs b/test/service/metadata/metadata_test.exs
index 43bdfc8f6..6fe3c6ef4 100644
--- a/test/service/metadata/metadata_test.exs
+++ b/test/service/metadata/metadata_test.exs
@@ -51,7 +51,7 @@ defmodule Mobilizon.Service.MetadataTest do
 
       tags_output = event |> Metadata.build_tags() |> Metadata.Utils.stringify_tags()
       {:ok, document} = Floki.parse_fragment(tags_output)
-      assert "#{event.title} - Mobilizon" == document |> Floki.find("title") |> Floki.text()
+      assert "#{event.title} - cottbus.vonunten.org" == document |> Floki.find("title") |> Floki.text()
 
       assert @truncated_description ==
                document