WP Fastest Cache

Does WP Fastest Cache work with WordPress 5.5.1 and PHP 7.4.8? A smoke test was performed on .


No PHP errors, warnings or notices
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Looks good! No problems were detected.

Memory usage: 79.22 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.

WordPress version5.5.1
PHP version7.4.8
MySQL version8.0.21
PHP memory limit256M
Plugin Info
Last updated
Active installs 1,000,000+
WordPress.org page https://wordpress.org/plugins/wp-fastest-cache/

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Pages 3

Plugins ‹ Test site — WordPress

Page screenshot: 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-fastest-cache%2FwpFastestCache.php&plugin_status=all&paged=1&s&_wpnonce=fdfedc54ba
Aspect after-activation
HTTP status 200
Load time 0.321 s
Memory usage 2.72 MiB
JS errors None
Resource errors None

WP Fastest Cache

Page screenshot: WP Fastest Cache
URL /wp-admin/admin.php?page=wpfastestcacheoptions
Aspect menu-item
HTTP status 200
Load time 0.478 s
Memory usage 2.84 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
Aspect front-page
HTTP status 200
Load time 0.213 s
Memory usage 2.64 MiB
JS errors None
Resource errors None


URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.504 s0.386 s-0.118 s2.75 MiB2.83 MiB+ 80.4 KiB
/wp-admin/edit.php0.253 s0.247 s-0.006 s2.8 MiB2.88 MiB+ 81.13 KiB
/wp-admin/post-new.php1.636 s2.010 s+0.374 s4.54 MiB4.63 MiB+ 91.65 KiB
/wp-admin/upload.php0.662 s0.427 s-0.235 s2.63 MiB2.71 MiB+ 78.37 KiB
/wp-admin/options-writing.php0.183 s0.205 s+0.022 s2.64 MiB2.69 MiB+ 46.34 KiB
/wp-admin/media-new.php0.230 s0.206 s-0.024 s2.6 MiB2.68 MiB+ 81.04 KiB
/wp-admin/edit-tags.php?taxonomy=category0.247 s0.202 s-0.045 s2.64 MiB2.72 MiB+ 81.01 KiB
/wp-admin/post-new.php?post_type=page1.583 s1.611 s+0.028 s4.53 MiB4.62 MiB+ 86.61 KiB
/wp-admin/options-discussion.php0.474 s0.329 s-0.145 s2.61 MiB2.69 MiB+ 79.48 KiB
/wp-admin/edit-comments.php0.233 s0.264 s+0.031 s2.65 MiB2.72 MiB+ 79.02 KiB
/0.355 s0.309 s-0.046 s2.56 MiB2.64 MiB+ 86.37 KiB
Average 0.578 s0.563 s-0.015 s3 MiB3.07 MiB+ 79.22 KiB


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.

Options wp_options 1

PHP Error Log

The log file is empty.

See also: All tests for this plugin, How to Hide the "WP Fastest Cache" Admin Menu