Report - WP REST Cache 2020.3.0

Does WP REST Cache work with WordPress 5.5.1 and PHP 7.4.8? A smoke test was performed on 2020-10-12 15:03:04 UTC.

Summary

Errors

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

Performance

Memory usage: 79.38 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	5.5.1
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=12cd81eac7
Aspect	after-activation
HTTP status	200
Load time	0.506 s
Memory usage	3.53 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	0.166 s
Memory usage	2.78 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	0.154 s
Memory usage	2.73 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	0.159 s
Memory usage	2.74 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.195 s
Memory usage	2.65 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.455 s	0.346 s	-0.109 s	2.75 MiB	2.83 MiB	+ 78.51 KiB
/wp-admin/edit.php	0.215 s	0.324 s	+0.109 s	2.8 MiB	2.87 MiB	+ 78.51 KiB
/wp-admin/post-new.php	1.463 s	1.736 s	+0.273 s	4.54 MiB	4.64 MiB	+ 100.23 KiB
/wp-admin/upload.php	0.491 s	0.415 s	-0.076 s	2.63 MiB	2.7 MiB	+ 77.66 KiB
/wp-admin/options-writing.php	0.186 s	0.147 s	-0.039 s	2.64 MiB	2.69 MiB	+ 45.65 KiB
/wp-admin/media-new.php	0.198 s	0.184 s	-0.014 s	2.6 MiB	2.68 MiB	+ 77.84 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.186 s	0.187 s	+0.001 s	2.64 MiB	2.72 MiB	+ 78.77 KiB
/wp-admin/post-new.php?post_type=page	1.354 s	1.261 s	-0.093 s	4.53 MiB	4.62 MiB	+ 90.05 KiB
/wp-admin/options-discussion.php	0.343 s	0.339 s	-0.004 s	2.61 MiB	2.68 MiB	+ 78.16 KiB
/wp-admin/edit-comments.php	0.215 s	0.219 s	+0.004 s	2.65 MiB	2.72 MiB	+ 77.66 KiB
/	0.360 s	0.259 s	-0.101 s	2.56 MiB	2.65 MiB	+ 90.18 KiB
Average	0.497 s	0.492 s	-0.004 s	3 MiB	3.07 MiB	+ 79.38 KiB

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` 7

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_item_allowed_endpoints
wp_rest_cache_rest_prefix
wp_rest_cache_uncached_parameters

PHP Error Log 1 lines

[12-Oct-2020 15:03:18 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 2020.3.0