Ruby

Agree. On a different note (and I'm not sure this is the right place to ask it), could we buy this domain and redirect to the official docs?

It looks there are 95 links 22 unique URIs in www.ruby-lang.org.

http://ruby-doc.org
http://ruby-doc.org/core-1.8.7/String.html
http://ruby-doc.org/docs/ruby-doc-bundle/FAQ/FAQ.html
http://ruby-doc.org/stdlib-2.0.0/libdoc/dl/rdoc/DL.html
http://ruby-doc.org/stdlib-2.1.8/libdoc/dl/rdoc/DL.html
http://ruby-doc.org/stdlib-2.2.4/libdoc/dl/rdoc/DL.html
http://www.ruby-doc.org/core
http://www.ruby-doc.org/core-1.9.3/IO.html
http://www.ruby-doc.org/core-2.0/Enumerable.html
http://www.ruby-doc.org/core-2.0/Enumerator.html
http://www.ruby-doc.org/core-2.0/Module.html
http://www.ruby-doc.org/core-2.0/Range.html
http://www.ruby-doc.org/core/
http://www.ruby-doc.org/docs/ApprendreProgrammer/Apprendre_%E0_Programmer.pdf
http://www.ruby-doc.org/docs/ProgrammingRuby/
http://www.ruby-doc.org/stdlib
http://www.ruby-doc.org/stdlib/
http://www.ruby-doc.org/stdlib/libdoc/rdoc/rdoc/index.html
https://ruby-doc.org/
https://ruby-doc.org/core-2.4.0/Thread.html
https://www.ruby-doc.org/
https://www.ruby-doc.org/docs/ProgrammingRuby/

I had tried to purchase it earlier today, but it appears that it has already been bought and I cannot see who owns it as it has domain privacy on. Let us hope the buyer has good intentions.

Some URIs in the above list are just in footnotes but unused now.
And the toplevel of the site could be simply removed as there are links to docs.r-l.o already, I think.
But not sure about /core and /stdlib, especially to version older than 2.1.

Checking with web.archive.org, a few links were already 404 many years ago (e.g. 2016), so we can simply remove them IMO.
For those that are still indexed in the last 10 years, I think some of them can be replaced with a link to their web archive pages, with updated texts like "Original text (web archive)". WDYT?

Thanks Nobu!
I agree with Stan that some of the links to /core and /stdlib could be replaced with a link to the Internet Archive.
For example:
https://web.archive.org/web/20190405070846/http://ruby-doc.org/stdlib-2.0.0/libdoc/dl/rdoc/DL.html

matheusrich (Matheus Richard) wrote in #note-1:

Agree. On a different note (and I'm not sure this is the right place to ask it), could we buy this domain and redirect to the official docs?

I'm not sure buying every third party domain that has better SEO is something we should encourage.
From what I've read ruby-doc.org was an attempt by the community to improve the Ruby documentation, but in the end it did the opposite (outdated documentation, confusion about what the official docs are, and now deadlinks).
Let's hope improvements to the official docs (and the end of ruby-doc.org) will put the official docs at the top of search results again.

@p8 I didn't mean buying it because it has good SEO. I meant buying it to keep some level of compatibility (at least it would redirect to the official docs) and to prevent someone with bad intentions to do something with it while using Ruby's name.

@matheusrich keeping those links working would have been nice. From the Mastodon thread it seems he was asking 10k which is a bit much for something that was a community benefit.