> I haven't seen GitHub break a working URL that they have hosted in the 17+ years since they first launched. Nice post! This is only a nit: They did break wo

> I haven't seen GitHub break a working URL that they have hosted in the 17+ years since they first launched. Nice post! This is only a nit: They did break working URLs at least once sometime between 2020 and 2023. Until 2013, GitHub served GitHub Pages from the USERNAME.github.com subdomains. Understandably, this was a security nightmare, due to which in 2013 they made the switch to USERNAME.github.io for GitHub Pages. For several years they took care of automatically redirecting something like <http://newmerator.github.com/ http://newmerator.github.com/> to <http://newmerator.github.io/ http://newmerator.github.io/>. But if you click on those links now, you'll find that the former does not work anymore. You can read more about it at <https://github.blog/news-insights/product-news/new-github-pages-domain-github-io/ https://github.blog/news-insights/product-news/new-github-pa...>. The example link I've shared in the previous paragraph has been picked from this article. In fact, <https://web.archive.org/web/20200000000000*/http://newmerator.github.com/ https://web.archive.org/web/20200000000000*/http://newmerato...> shows that the redirection worked until at least Feb 2020. But by Nov 2023, the redirect was already broken.