W3C and WHATWG Dead URL
The whatwg.org and now also w3c URLS now also constantly 404, no redirect.
the link in question:
http://www.w3.org/html/wg/drafts/html/CR/document-metadata.html#the-style-element, was good on , dead in . http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html, was good on , dead in .
i've been linking to spec URLs for 15 years. FSF, python, go 404 every few years. Companies, Sun java doc, Apple tech doc, also go 404. Now, w3c, and whatwg too.
A web expert Anne van Kesteren (twitter https://twitter.com/annevk • blog https://annevankesteren.nl/) saw my tweet, and, fixed it! See: https://github.com/whatwg/html/commit/de753f666fde831058bca5aa4ce0e118c3bc307c
2018-10, More W3c Dead Link
starting few years ago, the w3 site start to have dead links. e.g.
http://www.w3.org/TR/html51/embedded-content.html#the-audio-elementlast accessed on 2014-09-16
http://www.w3.org/TR/html51/text-level-semantics.html#the-time-elementlast accessed on 2014-03-29