diff --git a/app/lib/tag_manager.rb b/app/lib/tag_manager.rb
index d585ee7bb6d..b4671a0fb0e 100644
--- a/app/lib/tag_manager.rb
+++ b/app/lib/tag_manager.rb
@@ -27,5 +27,7 @@ class TagManager
     domain = uri.host + (uri.port ? ":#{uri.port}" : '')
 
     TagManager.instance.web_domain?(domain)
+  rescue Addressable::URI::InvalidURIError, IDN::Idna::IdnaError
+    false
   end
 end