diff --git a/content/meta/_index.md b/content/meta/_index.md
index f560cc5..679e195 100644
--- a/content/meta/_index.md
+++ b/content/meta/_index.md
@@ -43,7 +43,7 @@ This site is featured in some cool directories.
 <details>
 <summary>Pending directories</summary>
 
-- [Nerd Listings](https://nerdlistings.info/category/personalsites/) (pending)
+- [Nerd Listings](https://nerdlistings.info/category/personalsites/) (pending; expired TLS certificate)
 - [LinkLane](https://www.linklane.net/) (pending)
 - [Blog Surf](https://blogsurf.io/) (pending)
 
diff --git a/linter-configs/htmltest.yml b/linter-configs/htmltest.yml
index e267604..b123eb0 100644
--- a/linter-configs/htmltest.yml
+++ b/linter-configs/htmltest.yml
@@ -36,6 +36,7 @@ IgnoreURLs:
   - "https://seirdy.one/webmentions/"
   - "http://creativecommons.org/ns"
   - "https://seirdy.one/search/"
+  - "https://nerdlistings.info/category/personalsites/" # I reached out about the expired cert and mentioned the issue on the page.
   - "https://www.reddit.com/user/Seirdy" # reddit doesn't like htmltest
   # - "https://i.reddit.com/r/web_design/comments/k0dmpj/an_opinionated_list_of_best_practices_for_textual/gdmxy4u/"
   - "https://i.reddit.com"