W3C Markup Validation Service VS Xenu's Link Sleuth

Validate Your Code Include tools like W3C code validation service and CSS validator to ensure your code meets web standards. - Source: dev.to / about 1 month ago

===> Click here to run your code through the HTML validator. - Source: dev.to / 4 months ago

Try looking at tools like https://validator.w3.org/. Source: 5 months ago

I'm looking for either that specific validator (older version of https://validator.w3.org/) or an equivalent that can validate pre-HTML5 (DTD-based) files in a similar fashion. I would appreciate any pointers in the right direction. Thanks in advance. Source: 10 months ago

Not an addon, but maybe it helps Https://validator.w3.org/. Source: 11 months ago

I still haven't found a good modern equivalent to http://home.snafu.de/tilman/xenulink.html. - Source: Hacker News / 3 months ago

Good list of free and open source link checkers here: https://www.devopsschool.com/blog/list-of-free-open-source-self-hosted-application-to-check-broken-links-url-check-on-web-page/ I've been using Xenu's Link Sleuth (https://home.snafu.de/tilman/xenulink.html) forever, but I should probably try some others out and see if there's something better now. Xenu's is also a funny throwback to the old web, sort of like... - Source: Hacker News / 3 months ago

Xenu’s Link Sleuth Http://home.snafu.de/tilman/xenulink.html Diagnostic, Technical SEO Winner of the ugliest-SEO-tool-on-the-planet award, Xenu is also one of the most useful. Crawl entire sites, find broken links, create sitemaps, and more. Source: about 1 year ago

If you want to a tool to crawl through your site looking for 404 or 500 errors, there are online tools (e.g. The W3C's online link checker), browser plugins for Firefox and Chrome, or windows programs like Xenu's Link Sleuth. - Source: dev.to / over 1 year ago

I used to use http://home.snafu.de/tilman/xenulink.html to check my bookmarks.html and personal web sites, but it's outdated and no longer supported. Is there a free replacement that work well to show broken links, redirected links, etc.? Source: about 2 years ago