"More info about performance optimization" links in Site Health go to 404 error on WordPress.org

[jeffgreendesign]

On the Site Health page, at least under the "Enqueued scripts" improvements, the links for "More info about performance optimization" go to a broken link on wordpress.org (​https://wordpress.org/support/article/optimization/). According to archive.org, it looks like that link was live as late as May 16, 2023. Not sure if there is now a new page. The only optimization page is ​https://wordpress.org/documentation/article/search-engine-optimization/.

[SergeyBiryukov]

#58521 was marked as a duplicate.

[sabernhardt]

The page was deleted two weeks ago according to the issue tracker:
​https://github.com/WordPress/Documentation-Issue-Tracker/issues/795

Another issue suggests there might be an updated version in the future (possibly with a different URL):
​https://github.com/WordPress/Documentation-Issue-Tracker/issues/824

[SergeyBiryukov]

Hi there, welcome to WordPress Trac! Thanks for the report.

I was able to find some context in a ​comment on Slack by @stevenlinx:

The ​"Optimization" page now resides in Advanced Administration handbook.

The old page under HelpHub was removed as a consequence of ​Issue 795. But for some reason, if you use the old URL, it didn't re-direct properly, it re-directs to another page called "Optimization – Caching" because the title resembles "Optimization". And this page is just the "Caching" section of the "Optimization" page, so this page can be deleted as well.

The old URL now shows 404. The one in AAH is the right one.

However, the Optimization page on HelpHub appears to be working again now. Looks like it was reinstated?

[sabernhardt]

I get the 404 error in two browsers, including the one where I am logged in.

The URL is in the Site Health class file on lines 2519 and 2628.

[Presskopp]

for me also 404, sorry I had to edit this post because I thought it was back, but it was a different page

[audrasjb]

Replying to SergeyBiryukov:

However, the Optimization page on HelpHub appears to be working again now. Looks like it was reinstated?

This page is currently a draft, so only user logged in as HelpHub editors can view its content. It goes to a 404 when you're not logged in :)

[SergeyBiryukov]

Replying to audrasjb:

This page is currently a draft, so only user logged in as HelpHub editors can view its content.

Ah, indeed, that explains it. Thanks! :)

[stevenlinx]

I've restored the page.

See ​Doc Issue 872.

@SergeyBiryukov and @sabernhardt
Thanks for the ping.

[JavierCasares]

The idea is having all the performance optimization information at:

​https://developer.wordpress.org/advanced-administration/performance/

Now we have these:

• ​https://developer.wordpress.org/advanced-administration/performance/cache/
• ​https://developer.wordpress.org/advanced-administration/performance/optimization/

[audrasjb]

Ok, thanks!
If the URL is planned to be modified, it is not mandatory to wait for the next core release before updating but it would be nice to 1) redirect the old url; 2) keep this ticket open so we can update the url accordingly in the next release :)

[sabernhardt]

The 404 errors seem to be fixed:

• r57793 updated the links to the Advanced Administration handbook.
• r58113 fixed the letter case in the #caching link.
• r58332 added an autoloaded options test that directs to #autoloaded-options on the same handbook page.

#65477 still reports an incorrect anchor for object caching. Should this ticket be closed as 'works for me' now, or perhaps closed as fixed at the same time as #65477?

[SergeyBiryukov]

In 62538:

Site Health: Correct the anchor in object cache documentation link.

Follow-up to [57793], [58113], [58332].

Props jdy68, mohamedahamed, sabernhardt, jeffgreendesign, Presskopp, audrasjb, stevenlinx, JavierCasares, westonruter, SergeyBiryukov.
Fixes #65477, #58518.