diff --git a/src/models/blogs.rs b/src/models/blogs.rs
index 6fd78b5..fd5ec9b 100644
--- a/src/models/blogs.rs
+++ b/src/models/blogs.rs
@@ -16,8 +16,9 @@ use openssl::{
 };
 use webfinger::*;
 
+use BASE_URL;
 use activity_pub::{
-    ApSignature, ActivityStream, Id, IntoId,
+    ApSignature, ActivityStream, Id, IntoId, PublicKey,
     inbox::WithInbox,
     sign
 };
@@ -60,6 +61,8 @@ const BLOG_PREFIX: &'static str = "~";
 impl Blog {
     insert!(blogs, NewBlog);
     get!(blogs);
+    find_by!(blogs, find_by_ap_url, ap_url as String);
+    find_by!(blogs, find_by_name, actor_id as String, instance_id as i32);
 
     pub fn get_instance(&self, conn: &PgConnection) -> Instance {
         Instance::get(conn, self.instance_id).expect("Couldn't find instance")
@@ -73,8 +76,6 @@ impl Blog {
             .expect("Couldn't load blogs ")
     }
 
-    find_by!(blogs, find_by_name, actor_id as String, instance_id as i32);
-
     pub fn find_local(conn: &PgConnection, name: String) -> Option<Blog> {
         Blog::find_by_name(conn, name, Instance::local_id(conn))
     }
@@ -144,8 +145,23 @@ impl Blog {
         })
     }
 
-    pub fn into_activity(&self, _conn: &PgConnection) -> Group {
-        Group::default() // TODO
+    pub fn into_activity(&self, _conn: &PgConnection) -> CustomGroup {
+        let mut blog = Group::default();
+        blog.ap_actor_props.set_preferred_username_string(self.actor_id.clone()).expect("Blog::into_activity: preferredUsername error");
+        blog.object_props.set_name_string(self.title.clone()).expect("Blog::into_activity: name error");
+        blog.ap_actor_props.set_outbox_string(self.outbox_url.clone()).expect("Blog::into_activity: outbox error");
+        blog.ap_actor_props.set_inbox_string(self.inbox_url.clone()).expect("Blog::into_activity: inbox error");
+        blog.object_props.set_summary_string(self.summary.clone()).expect("Blog::into_activity: summary error");
+        blog.object_props.set_id_string(self.ap_url.clone()).expect("Blog::into_activity: id error");
+
+        let mut public_key = PublicKey::default();
+        public_key.set_id_string(format!("{}#main-key", self.ap_url)).expect("Blog::into_activity: publicKey.id error");
+        public_key.set_owner_string(self.ap_url.clone()).expect("Blog::into_activity: publicKey.owner error");
+        public_key.set_public_key_pem_string(self.public_key.clone()).expect("Blog::into_activity: publicKey.publicKeyPem error");
+        let mut ap_signature = ApSignature::default();
+        ap_signature.set_public_key_publickey(public_key).expect("Blog::into_activity: publicKey error");
+
+        CustomGroup::new(blog, ap_signature)
     }
 
     pub fn update_boxes(&self, conn: &PgConnection) {
@@ -208,13 +224,16 @@ impl Blog {
         }
     }
 
-    // FIXME: see User::from_url for correct behavior
     pub fn from_url(conn: &PgConnection, url: String) -> Option<Blog> {
-        blogs::table.filter(blogs::ap_url.eq(url))
-            .limit(1)
-            .load::<Blog>(conn)
-            .expect("Error loading blog from url")
-            .into_iter().nth(0)
+        Blog::find_by_ap_url(conn, url.clone()).or_else(|| {
+            // The requested user was not in the DB
+            // We try to fetch it if it is remote
+            if Url::parse(url.as_ref()).unwrap().host_str().unwrap() != BASE_URL.as_str() {
+                Some(Blog::fetch_from_url(conn, url).unwrap())
+            } else {
+                None
+            }
+        })
     }
 }
 
diff --git a/src/routes/blogs.rs b/src/routes/blogs.rs
index 6b09194..c843968 100644
--- a/src/routes/blogs.rs
+++ b/src/routes/blogs.rs
@@ -1,4 +1,4 @@
-use activitypub::{actor::Group, collection::OrderedCollection};
+use activitypub::collection::OrderedCollection;
 use rocket::{
     request::Form,
     response::{Redirect, Flash}
@@ -32,7 +32,7 @@ fn details(name: String, conn: DbConn, user: Option<User>) -> Template {
 }
 
 #[get("/~/<name>", format = "application/activity+json", rank = 1)]
-fn activity_details(name: String, conn: DbConn) -> ActivityStream<Group> {
+fn activity_details(name: String, conn: DbConn) -> ActivityStream<CustomGroup> {
     let blog = Blog::find_local(&*conn, name).unwrap();
     ActivityStream::new(blog.into_activity(&*conn))
 }