diff --git a/content/offline.md b/content/offline.md
new file mode 100644
index 0000000..c04bdc3
--- /dev/null
+++ b/content/offline.md
@@ -0,0 +1,21 @@
+---
+layout: layouts/base.njk
+permalink: offline
+eleventyExcludeFromCollections: true
+---
+# Ooops!
+
+We're offline at the moment! Check your internect connection, or try again later.
+
+Go <a href="/">home</a>.
+
+<!--
+
+Read more: https://www.11ty.dev/docs/quicktips/not-found/
+
+This will work for both GitHub pages and Netlify:
+
+* https://help.github.com/articles/creating-a-custom-404-page-for-your-github-pages-site/
+* https://www.netlify.com/docs/redirects/#custom-404
+
+-->