Addresses that don't exist on demos.obeya.si now return a real HTTP 404 with a short "This page does not exist" page and a link back to all demos. Before, they returned the overview with status 200. Search engines and link checkers can now tell missing pages from real ones. Existing demo pages and the overview work as before.
Demo site answers 404 for missing pages
Shared by Daniel Sadilek on November 7, 2026