Report - WP REST Cache 2021.4.1

Does WP REST Cache work with WordPress 6.0 and PHP 7.4.8? A smoke test was performed on 2022-06-14 21:12:38 UTC.

Summary

Errors

1	Database errors
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 93.55 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: insignificant.
The plugin didn't make the site noticeably slower.

Environment

WordPress version	6.0
PHP version	7.4.8
MySQL version	8.0.21
PHP memory limit	256M

Plugin Info

Last updated	2026-07-25T08:01:00+00:00
Active installs	10,000+
WordPress.org page	https://wordpress.org/plugins/wp-rest-cache/
Badges	Get badge code

Pages 5

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=wp-rest-cache%2Fwp-rest-cache.php&plugin_status=all&paged=1&s&_wpnonce=e0e52a62e7
Aspect	after-activation
HTTP status	200
Load time	0.396 s
Memory usage	4.32 MiB
JS errors	None
Resource errors	None

Settings → WP REST Cache

URL	/wp-admin/options-general.php?page=wp-rest-cache
Aspect	menu-item
HTTP status	200
Load time	0.172 s
Memory usage	3.82 MiB
JS errors	None
Resource errors	None

Settings → WP REST Cache → Endpoint API Caches

URL	/wp-admin/options-general.php?page=wp-rest-cache&sub=endpoint-api
Aspect	menu-item-tab
HTTP status	200
Load time	0.319 s
Memory usage	3.77 MiB
JS errors	None
Resource errors	None

Settings → WP REST Cache → Clear Caches

URL	/wp-admin/options-general.php?page=wp-rest-cache&sub=clear-cache
Aspect	menu-item-tab
HTTP status	200
Load time	0.178 s
Memory usage	3.79 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.214 s
Memory usage	3.63 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.392 s	0.254 s	-0.138 s	3.72 MiB	3.8 MiB	+ 82.09 KiB
/wp-admin/edit.php	0.191 s	0.229 s	+0.038 s	3.75 MiB	3.83 MiB	+ 81.38 KiB
/wp-admin/post-new.php	0.759 s	1.003 s	+0.244 s	5.53 MiB	5.63 MiB	+ 98.97 KiB
/wp-admin/upload.php	0.411 s	0.312 s	-0.099 s	3.68 MiB	3.76 MiB	+ 80.9 KiB
/wp-admin/options-writing.php	0.304 s	0.154 s	-0.150 s	3.61 MiB	3.74 MiB	+ 125.22 KiB
/wp-admin/media-new.php	0.304 s	0.207 s	-0.097 s	3.66 MiB	3.74 MiB	+ 81.07 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.192 s	0.211 s	+0.019 s	3.68 MiB	3.76 MiB	+ 82.01 KiB
/wp-admin/post-new.php?post_type=page	0.696 s	0.652 s	-0.044 s	5.53 MiB	5.62 MiB	+ 88.79 KiB
/wp-admin/options-discussion.php	0.403 s	0.351 s	-0.052 s	3.59 MiB	3.73 MiB	+ 145.4 KiB
/wp-admin/edit-comments.php	0.221 s	0.225 s	+0.004 s	3.69 MiB	3.77 MiB	+ 80.89 KiB
/	0.287 s	0.239 s	-0.048 s	3.55 MiB	3.63 MiB	+ 82.35 KiB
Average	0.378 s	0.349 s	-0.029 s	4 MiB	4.09 MiB	+ 93.55 KiB

Code Statistics

Note: Third-party libraries and minified JS/CSS files are excluded from these statistics where possible, so the numbers you see here may be lower than those reported by other tools.

PHP

Language		%	Lines of code	Comment lines	Files
	PHP	99.8%	2,026	1,479	25
	CSS	0.2%	4	0	1
Total			2,030	1,479	26

PHP Code Analysis | More results »

Lines of code	1,660
Total complexity	368
Median class complexity	7.0
Median method complexity	2.0
Most complex class	WP_Rest_Cache_Plugin\Includes\Caching\Caching
Most complex function	WP_Rest_Cache_Plugin\Includes\API\Endpoint_Api::skip_caching()

Classes	15
Methods	116
Functions	0

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Database Tables 2

wp_wrc_caches
wp_wrc_relations

Options `wp_options` 8

wp_rest_cache_allowed_endpoints
wp_rest_cache_allowed_request_methods
wp_rest_cache_cacheable_request_headers
wp_rest_cache_database_version
wp_rest_cache_disallowed_endpoints
wp_rest_cache_item_allowed_endpoints
wp_rest_cache_rest_prefix
wp_rest_cache_uncached_parameters

PHP Error Log 1 lines

[14-Jun-2022 21:12:54 UTC] WordPress database error Table 'wordpress.wp_wrc_relations' doesn't exist for query ALTER TABLE `wp_wrc_relations` DROP INDEX `object`; made by require_once('wp-admin/admin.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, WP_Rest_Cache_Plugin\Includes\Caching\Caching->update_database_structure

WP REST Cache 2021.4.1