The program scans every newdump for over 30 languages and creates a list of articles with errors.
For a few Wikipedias, the program scans newly revised articles daily, to create a new list for users, omitting already corrected articles.
A specific interface –here for the English project – facilitates correcting problems detected by the program in the following three levels of ranking priorities errors. It helps keep the error lists updated in near real time by providing some statistics on corrections made recently.
You can download the Checkwiki programsat GitHub. The programs are licensed underGPLv3.
Interested users might also like to review the regularly-updated lists of wiki syntax issues atSpecial:LintErrors.
Ananalysis is also performed byWikiCleanerBot twice a month on the dumps for some of the errors, including some additional errors compared to theproject interface.
Bots fix some of the errors here automatically. Any error tagged with "BOT" is usually fixed by a bot at some point, so manually fixing them is unnecessary.
Wikipedia:HTML 5 – information page on technical details of updating WP code to HTML 5 + CSS3, including how to replace deprecated HTML 4.01 markup; includes automated searches for obsolete markup
Wikipedia:Linter – MediaWiki extension to identify broken and problematic markup which cannot be fixed automatically by the server