[Bug] 404s, bad host, timeouts, bad urls for URLs linked from website

[Roshanjossey]

Bug description

I checked links in the website with brokenlinkcheck.com and found the following links could potentially have problems

#	URL	link text	response
1	https://jenniferbrownconsulting.com/inclusion-the-book/	Inclusion: Diversity The New Workplace & The Will	404
2	https://www.getstark.co/newsletter	Stark	404
3	https://www.a11yproject.com/posts/everyday-accessibility/A11yProject.com/Resources	The A11Y Project’s Resources Page	404
4	https://chrome.google.com/webstore/detail/i-want-to-see-like-the-co/jebeedfnielkcjlcokhiobodkjjpbjia	Landmarks	404
5	https://chrome.google.com/webstore/detail/nocoffee/jjeeggmbnhckmgdhmgdckeigabjfbddl	NoCoffee	404
6	https://confrere.com/a11y/test/	Accessibility Tester	404
7	http://blindspot.fas.harvard.edu/Book	Blindspot: Hidden Biases of Good People	bad host
8	http://colorfilter.wickline.org/	Colorblind Web Page Filter	bad host
9	https://hexnaw.com/	Hex Naw	timeout
10	https://image-color.com/color-contrast.html	Image-Color: Color Contrast Checker	404
11	http://www.karlgroves.com/blog/	Blog - Karl Groves	404
12	https://pragmaticaccess.com/articles/2019-05-30-pdf-accessibility-introduction	PDF accessibility introduction	bad host
13	https://www.funka.com/en/we-offer/funka-accessibility-days/	Funka Accessibility Days	404
14	https://www.meetup.com/a11yphl/	A11yPHL - Philly Accessibility Meetup	404
15	https://www.meetup.com/Munich-Accessibility-Meetup/	Munich Accessibility Meetup	404
16	https://www.meetup.com/Paris-Web-Accessibility/	Paris Web Accessibility	404
17	https://developer.yoast.com/accessibility-slow-down-development-process/	The a11y Monthly: Does Accessibility slow down the deve	404
18	https://usabilitygeek.com/information-different-types-people-graphic-communication-website-information-designers/	Information On Different Types Of People For Graphic Co	404
19	https://addons.mozilla.org/en-US/firefox/addon/visbug/	VisBug	404
20	https://blindjournalist.wordpress.com/2021/03/04/why-i-blocked-accessibe/	Why I blocked #AccessiBe	404
21	https://www.barrierbreak.com/2021/07/13/why-should-you-stay-away-from-accessibility-overlays/	Why should you stay away from Accessibility Overlays?	404
22	hhttps://www.w3.org/WAI/WCAG21/Understanding/understanding-techniques	Techniques	bad url
23	http://ffb.ca/learn/eye-diseases/	Retinal degeneration	404
24	https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/accessibility.tabfocus	accessibility.tabfocus	404
25	https://www.ncdt.nl/ncdt-2019/readability-on-the-web-damien-senger	research on readability on the web	404
26	https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-invalid_attribute	aria-invalid="true"	404
27	https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-describedby_attribute	aria-describedby	404
28	https://help.ubuntu.com/lts/installation-guide/s390x/ch01s01.html	Ubuntu	404
29	https://www.pixel-ruler.net/android-scale-independent-pixel	scale-independent pixels	timeout
30	https://www.mobileux.net/2019/06/24/designing-apps-with-accessible-fonts/	Designing Apps with Accessible Fonts	404
31	https://midnight-lizard.org/home	Midnight Lizard	404
32	https://jamstackconf.com/jammies/	Jammy for Social Impact Award	404
33	http://jxnblk.com/colorable/demos/text/	Colorable	404

Expected outcome

Not many 404s

Steps to reproduce

Check if these links are working, use an automated tool to check

Checklist to track what's updated

• [x] https://jenniferbrownconsulting.com/inclusion-the-book/
• [x] https://www.getstark.co/newsletter
• [ ] https://www.a11yproject.com/posts/everyday-accessibility/A11yProject.com/Resources
• [x] https://chrome.google.com/webstore/detail/i-want-to-see-like-the-co/jebeedfnielkcjlcokhiobodkjjpbjia
• [ ] https://chrome.google.com/webstore/detail/nocoffee/jjeeggmbnhckmgdhmgdckeigabjfbddl
• [x] https://confrere.com/a11y/test/
• [x] http://blindspot.fas.harvard.edu/Book
• [ ] http://colorfilter.wickline.org/
• [ ] https://hexnaw.com/
• [x] https://image-color.com/color-contrast.html
• [x] http://www.karlgroves.com/blog/
• [ ] https://pragmaticaccess.com/articles/2019-05-30-pdf-accessibility-introduction
• [ ] https://www.funka.com/en/we-offer/funka-accessibility-days/
• [x] https://www.meetup.com/a11yphl/
• [x] https://www.meetup.com/Munich-Accessibility-Meetup/
• [x] https://www.meetup.com/Paris-Web-Accessibility/
• [ ] https://developer.yoast.com/accessibility-slow-down-development-process/
• [ ] https://usabilitygeek.com/information-different-types-people-graphic-communication-website-information-designers/
• [ ] https://addons.mozilla.org/en-US/firefox/addon/visbug/
• [ ] https://blindjournalist.wordpress.com/2021/03/04/why-i-blocked-accessibe/
• [ ] https://www.barrierbreak.com/2021/07/13/why-should-you-stay-away-from-accessibility-overlays/
• [ ] hhttps://www.w3.org/WAI/WCAG21/Understanding/understanding-techniques
• [ ] http://ffb.ca/learn/eye-diseases/
• [ ] https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/accessibility.tabfocus
• [ ] https://www.ncdt.nl/ncdt-2019/readability-on-the-web-damien-senger
• [ ] https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-invalid_attribute
• [ ] https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-describedby_attribute
• [ ] https://help.ubuntu.com/lts/installation-guide/s390x/ch01s01.html
• [ ] https://www.pixel-ruler.net/android-scale-independent-pixel
• [ ] https://www.mobileux.net/2019/06/24/designing-apps-with-accessible-fonts/
• [ ] https://midnight-lizard.org/home
• [ ] https://jamstackconf.com/jammies/
• [ ] http://jxnblk.com/colorable/demos/text/

Terms

• [x] I have read, and agree to follow this project's Code of Conduct

[ericwbailey]

Thanks for submitting this, looks like we have some URLs to fix 😅

[Roshanjossey]

Cool cool cool. I'll change the number in the table to checkboxes to keep track of what's updated. I'll ask questions when working on updating these

[p2635]

Potentially implement something like https://github.com/marketplace/actions/broken-link-checker-action to improve the process? Shall I create this as a new issue?

[ericwbailey]

@p2635 That'd be great, yes please!

[harsxv]

Actually, the broken-link-checker-action is also "broken" since the owner archived the repository to read-only 😁

[p2635]

Thanks for pointing that out, but that was just an example anyway @harsxv. I was just linking that as an idea. I've seen other link checkers and they are not perfect, but hopefully they can still save some time. More research to be done on #1521

[meatnordrink]

Yeah, the Newsletter link, which was just posted on Mastodon, is totally broken.

(Tried to tell you on Mastodon, but you're not allowing new accounts now, nor allowing accounts created elsewhere to sign in on your servers...?)

[davatron5000]

@meatnordrink Apologies. Mastodon ownership handoff is still in-progress. Will be awhile before that gets sorted out and a few mistakes might go through the auto-poster.

[ericwbailey]

To clarify, @a11y.info is not owned by The A11Y Project organization. The account is hosted on the service, which is maintained by another individual. The A11Y Project are not allowing or disallowing anything in this regard.

The newsletter link was shared over two weeks ago, as per its post date. The page itself has been intentionally removed, and is not "totally broken."

[westonludeke]

Hi A11Y Project team!

I'm Weston👋 I love the work y'all are doing!

I saw this issue is still open and is labeled as a 'good-first-issue'. I've never committed a pull request to an open source project before, so I thought this would be a good chance for me to dip my toes in the water.

I updated three links and submitted a pull request: https://github.com/a11yproject/a11yproject.com/pull/1584

Let me know if there's anything I need to fix. If all goes well, I'm happy to continue to review other links.

Cheers!

[p2635]

Is @Roshanjossey still around to check off whatever is done on the main list of links? It's hard for me to know what is remaining.

[p2635]

I cross-checked it against my automated github action which I am investigating on https://github.com/a11yproject/a11yproject.com/issues/1521#issuecomment-1933607034

These appear to be the outstanding broken links if anyone wants to pick it up:

• https://blindjournalist.wordpress.com/2021/03/04/why-i-blocked-accessibe/
• https://www.barrierbreak.com/2021/07/13/why-should-you-stay-away-from-accessibility-overlays/
• https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/accessibility.tabfocus
• https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-invalid_attribute
• https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-describedby_attribute
• https://help.ubuntu.com/lts/installation-guide/s390x/ch01s01.html
• https://www.pixel-ruler.net/android-scale-independent-pixel
• https://midnight-lizard.org/home (this appears to be a false positive, I can visit the site fine)
• http://jxnblk.com/colorable/demos/text/

[westonludeke]

I just submitted a new pull request, #1587 which updates six of the URLs listed above. A few notes:

• The https://www.pixel-ruler.net domain seems down, so I replaced the URL with a Web Archive link.
• With this URL https://blindjournalist.wordpress.com/2021/03/04/why-i-blocked-accessibe/, it seems that the author possibly deleted/unpublished the blog post. I didn't replace this URL, but an archived version could be added in the future from the Web Archive.
• Confirming this URL https://midnight-lizard.org/home is valid for me and the site loads fine
• It doesn't look like MDN has a replacement URL for accessibility.tabfocus, so I didn't replace this link: https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/accessibility.tabfocus It's possible Mozilla renamed or removed this functionality.

[evelinabe]

I just submitted a new pull request, #1596. It updates or removes some of the broken links above:

• https://www.funka.com/en/we-offer/funka-accessibility-days/ removed section
• https://yoast.com/developer-blog/accessibility-slow-down-development-process/ updated
• https://medium.com/@user_design/information-on-different-types-of-people-for-graphic-communication-website-and-information-4b6454905bb1 updated with info about new destination
• https://blindjournalist.wordpress.com/2021/03/04/why-i-blocked-accessibe/ removed
• http://ffb.ca/learn/eye-diseases/ changed link to https://www.sciencedirect.com/topics/neuroscience/retinal-degeneration
• http://colorfilter.wickline.org/ is removed already
• https://hexnaw.com/ is valid
• https://addons.mozilla.org/en-US/firefox/addon/visbug/ is valid