An address a demo site does not have used to show the overview, with a status that told search engines it was a real page. A withdrawn demo's old link looked as if nothing had happened. Now such an address shows a page of its own in the site's language, saying there is no demo there or it was withdrawn, with a link to all demos. The host answers it with status 404 on Cloudflare Pages, GitHub Pages and Netlify, so search engines leave the address out.
Demo sites say when a page is not there
Shared by Daniel Sadilek on November 5, 2026