diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index c8e61f8a9..aecf96c36 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -481,9 +481,11 @@ def blocks?(user, %{ap_id: ap_id}) do
     blocks = user.info["blocks"] || []
     domain_blocks = user.info["domain_blocks"] || []
     %{host: host} = URI.parse(ap_id)
-    Enum.member?(blocks, ap_id) || Enum.any?(domain_blocks, fn domain ->
-      host == domain
-    end)
+
+    Enum.member?(blocks, ap_id) ||
+      Enum.any?(domain_blocks, fn domain ->
+        host == domain
+      end)
   end
 
   def block_domain(user, domain) do
diff --git a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
index 5fb51e8fa..12f9b5f7c 100644
--- a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
+++ b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
@@ -533,6 +533,20 @@ def blocks(%{assigns: %{user: user}} = conn, _) do
     end
   end
 
+  def domain_blocks(%{assigns: %{user: %{info: info}}} = conn, _) do
+    json(conn, info["domain_blocks"] || [])
+  end
+
+  def block_domain(%{assigns: %{user: blocker}} = conn, %{"domain" => domain}) do
+    User.block_domain(blocker, domain)
+    json(conn, %{})
+  end
+
+  def unblock_domain(%{assigns: %{user: blocker}} = conn, %{"domain" => domain}) do
+    User.unblock_domain(blocker, domain)
+    json(conn, %{})
+  end
+
   def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
     accounts = User.search(query, params["resolve"] == "true")
 
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 924254895..57b10bff1 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -101,7 +101,6 @@ def user_fetcher(username) do
 
     get("/blocks", MastodonAPIController, :blocks)
 
-    get("/domain_blocks", MastodonAPIController, :empty_array)
     get("/follow_requests", MastodonAPIController, :empty_array)
     get("/mutes", MastodonAPIController, :empty_array)
 
@@ -134,6 +133,10 @@ def user_fetcher(username) do
     get("/lists/:id/accounts", MastodonAPIController, :list_accounts)
     post("/lists/:id/accounts", MastodonAPIController, :add_to_list)
     delete("/lists/:id/accounts", MastodonAPIController, :remove_from_list)
+
+    get("/domain_blocks", MastodonAPIController, :domain_blocks)
+    post("/domain_blocks", MastodonAPIController, :block_domain)
+    delete("/domain_blocks", MastodonAPIController, :unblock_domain)
   end
 
   scope "/api/web", Pleroma.Web.MastodonAPI do
diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index 2abcf0dfe..eaae0b54f 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -780,6 +780,46 @@ test "getting a list of blocks", %{conn: conn} do
     assert [%{"id" => ^other_user_id}] = json_response(conn, 200)
   end
 
+  test "blocking / unblocking a domain", %{conn: conn} do
+    user = insert(:user)
+    other_user = insert(:user, %{ap_id: "https://dogwhistle.zone/@pundit"})
+
+    conn =
+      conn
+      |> assign(:user, user)
+      |> post("/api/v1/domain_blocks", %{"domain" => "dogwhistle.zone"})
+
+    assert %{} = json_response(conn, 200)
+    user = User.get_cached_by_ap_id(user.ap_id)
+    assert User.blocks?(user, other_user)
+
+    conn =
+      build_conn()
+      |> assign(:user, user)
+      |> delete("/api/v1/domain_blocks", %{"domain" => "dogwhistle.zone"})
+
+    assert %{} = json_response(conn, 200)
+    user = User.get_cached_by_ap_id(user.ap_id)
+    refute User.blocks?(user, other_user)
+  end
+
+  test "getting a list of domain blocks" do
+    user = insert(:user)
+
+    {:ok, user} = User.block_domain(user, "bad.site")
+    {:ok, user} = User.block_domain(user, "even.worse.site")
+
+    conn =
+      conn
+      |> assign(:user, user)
+      |> get("/api/v1/domain_blocks")
+
+    domain_blocks = json_response(conn, 200)
+
+    assert "bad.site" in domain_blocks
+    assert "even.worse.site" in domain_blocks
+  end
+
   test "unimplemented mute endpoints" do
     user = insert(:user)
     other_user = insert(:user)