The Brave Browser will start including a “Check for saved version” button on all pages that are 404. The button will check to see if there is a version of the page on The Internet Archive’s site.
Available today, starting with version 1.4 of its desktop browser, Brave has added a 404 detection system, with an automated Wayback Machine lookup process to its desktop browser.
By default, it now offers users one-click access to archived versions of Web pages that might otherwise not be available. Specifically we are checking for 14 HTTP error codes in addition to the 404 (page not found) condition, including: 408, 410, 451, 500, 502, 503, 504, 509, 520, 521, 523, 524, 525, and 526.
There are plugins for most browsers that will do the same thing, but it is nice to see Brave bake this into their browsing experience.