1 files changed, 8 insertions, 1 deletions
diff --git a/lib/api/internal/pages.rb b/lib/api/internal/pages.rb
index eaa434cff51..003af7f6dd4 100644
--- a/lib/api/internal/pages.rb
+++ b/lib/api/internal/pages.rb
@@ -17,11 +17,18 @@ module API
 
       namespace 'internal' do
         namespace 'pages' do
+          desc 'Get GitLab Pages domain configuration by hostname' do
+            detail 'This feature was introduced in GitLab 12.3.'
+          end
+          params do
+            requires :host, type: String, desc: 'The host to query for'
+          end
           get "/" do
-            host = PagesDomain.find_by_domain(params[:host])
+            host = Namespace.find_by_pages_host(params[:host]) || PagesDomain.find_by_domain(params[:host])
             not_found! unless host
 
             virtual_domain = host.pages_virtual_domain
+            no_content! unless virtual_domain
 
             present virtual_domain, with: Entities::Internal::Pages::VirtualDomain
           end