[wp-trac] [WordPress Trac] #63748: site helth status - cache

[WordPress Trac]

#63748: site helth status - cache
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 Reporter:  vincentbreton    |       Owner:  (none)
     Type:  feature request  |      Status:  new
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  General          |     Version:  6.8.2
 Severity:  normal           |  Resolution:
 Keywords:  has-patch        |     Focuses:
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Comment (by akshat2802):

 Replying to [comment:1 dannythedog]:
 >
 > This setup follows the official performance documentation for server-
 side caching (Nginx FastCGI cache), but the Site Health check still looks
 “red” which is confusing for users.


 Agree with you @dannythedog
 Sites using Nginx FastCGI cache, Cloudflare CDN, Varnish, or Apache
 mod_cache currently show "Page cache is not detected" in Site Health, even
 when these caching solutions are properly configured and functioning. This
 creates confusion for site administrators who have followed WordPress's
 official performance guidance.

 Here are some support links:
 - https://developer.wordpress.org/advanced-administration/server/web-
 server/nginx/#nginx-fastcgi_cache
 - https://developer.wordpress.org/advanced-
 administration/performance/optimization/#server-side-caching


 Here is the PR to add some common headers in core function:
 https://github.com/WordPress/wordpress-develop/pull/10598

 Also, we have a WP filter that can add custom cache headers that need to
 be considered at the time of checking site health. Ref:
 https://developer.wordpress.org/reference/hooks/site_status_page_cache_supported_cache_headers/
 {{{

 add_filter( 'site_status_page_cache_supported_cache_headers', function(
 $cache_headers ) {

     $cache_headers['x-my-cache-status'] = function( $header_value ) {
         return in_array(
             strtoupper( $header_value ),
             array( 'HIT', 'BYPASS', 'EXPIRED' )
         );
     };

     return $cache_headers;
 } );

 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/63748#comment:3>
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