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+---
+eleventyNavigation:
+  key: CodebergPagesTroubleshooting
+  title: Troubleshooting
+  parent: CodebergPages
+  order: 99
+---
+
+## My web browser displays a security warning when I try to access my Codeberg Pages.
+If your user name contains a dot (e.g. `user.name`) your Codeberg Pages URL (https://user.name.codeberg.page) contains a sub-sub-domain which does not work with Let's Encrypt wildcard certificates. Use the alternative URL https://pages.codeberg.org/user.name/ as a workaround.