WP Fastest Cache

Does WP Fastest Cache work with WordPress 5.5.3 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: 79.26 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 version5.5.3
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=1f855938e9
Aspect after-activation
HTTP status 200
Load time 0.436 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 0.487 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 0.281 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.php0.563 s0.406 s-0.157 s2.75 MiB2.83 MiB+ 80.48 KiB
/wp-admin/edit.php0.248 s0.248 s+0.000 s2.8 MiB2.88 MiB+ 81.21 KiB
/wp-admin/post-new.php1.701 s2.126 s+0.425 s4.55 MiB4.63 MiB+ 91.73 KiB
/wp-admin/upload.php0.693 s0.505 s-0.188 s2.63 MiB2.71 MiB+ 78.45 KiB
/wp-admin/options-writing.php0.181 s0.190 s+0.009 s2.64 MiB2.69 MiB+ 46.42 KiB
/wp-admin/media-new.php0.224 s0.239 s+0.015 s2.6 MiB2.68 MiB+ 81.12 KiB
/wp-admin/edit-tags.php?taxonomy=category0.192 s0.208 s+0.016 s2.64 MiB2.72 MiB+ 81.09 KiB
/wp-admin/post-new.php?post_type=page1.542 s1.650 s+0.108 s4.53 MiB4.62 MiB+ 86.69 KiB
/wp-admin/options-discussion.php0.325 s0.338 s+0.013 s2.61 MiB2.69 MiB+ 79.55 KiB
/wp-admin/edit-comments.php0.233 s0.236 s+0.003 s2.65 MiB2.72 MiB+ 79.09 KiB
/0.356 s0.250 s-0.106 s2.56 MiB2.64 MiB+ 86.08 KiB
Average 0.569 s0.581 s+0.013 s3 MiB3.07 MiB+ 79.26 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