diff --git a/linter-configs/htmltest.yml b/linter-configs/htmltest.yml
index 78ca9b3..e267604 100644
--- a/linter-configs/htmltest.yml
+++ b/linter-configs/htmltest.yml
@@ -51,4 +51,5 @@ IgnoreURLs:
   # - "https://forum.kuketz-blog.de/viewtopic.php?p=78202" # manual check: blocks crawlers
   - "https://forum.kuketz-blog.de/viewtopic.php"
   - "https://web.archive.org/web/0/http" # the wayback machine itself.
+  - "https://webring.yesterweb.org/noJS/index.php" # Seems to block htmltest; check manually
 OutputDir: "linter-configs/htmltest"