HTTP status codes are not normally a thing that aids political dissidents, or really anything to get excited about. But the newly-made code 451, to be used when something is taken down for legal ...

Governments will not always be able to disguise which content they restrict across the Web thanks to a new error code which will warn users of content restricted ...

There are many ways to find 404 errors: Google Search Console, crawlers, third-party tools. But none of them shows which external sources link to your website with the wrong URLs. These sources can be ...

Matt Cutts on How Google Handles 404 & 410 Status Codes In a recent webmaster help video, Google's Matt Cutts talks about the nuances of 404 vs. 410 status codes. While Google's crawlers treat 404s ...

Even non-developers are familiar with the 404 – Not Found status code. Some Web application users may have been exposed to more arcane (and sometimes scary) messages like 500 – Internal Server Error, ...