404page – your smart custom 404 error page 11.0.0

Does "404page - your smart custom 404 error page" work with WordPress 5.2.2 and PHP 7.2.16? 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: 73.75 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 version5.2.2
PHP version7.2.16
MySQL version8.0.15
PHP memory limit256M
Plugin Info
Last updated
Active installs 100,000+
WordPress.org page https://wordpress.org/plugins/404page/

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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=404page%2F404page.php&plugin_status=all&paged=1&s&_wpnonce=651d7ada24
Aspect after-activation
HTTP status 200
Load time 0.351 s
Memory usage 3.61 MiB
JS errors None
Resource errors None

Appearance → 404 Error Page

Page screenshot: Appearance → 404 Error Page
URL /wp-admin/themes.php?page=404pagesettings
Aspect menu-item
HTTP status 200
Load time 0.367 s
Memory usage 3.6 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 0.234 s
Memory usage 3.29 MiB
JS errors None
Resource errors None


URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.379 s0.242 s-0.137 s3.6 MiB3.65 MiB+ 55.16 KiB
/wp-admin/edit.php0.279 s0.336 s+0.057 s3.63 MiB3.68 MiB+ 55.16 KiB
/wp-admin/post-new.php1.165 s1.042 s-0.123 s5.27 MiB5.4 MiB+ 133.11 KiB
/wp-admin/upload.php0.558 s0.392 s-0.166 s3.46 MiB3.58 MiB+ 117.67 KiB
/wp-admin/options-writing.php0.203 s0.291 s+0.088 s3.55 MiB3.57 MiB+ 24.58 KiB
/wp-admin/media-new.php0.300 s0.308 s+0.008 s3.45 MiB3.5 MiB+ 54.2 KiB
/wp-admin/edit-tags.php?taxonomy=category0.254 s0.313 s+0.059 s3.48 MiB3.6 MiB+ 119.1 KiB
/wp-admin/post-new.php?post_type=page1.150 s1.098 s-0.052 s5.25 MiB5.37 MiB+ 126.32 KiB
/wp-admin/options-discussion.php0.635 s0.676 s+0.041 s3.45 MiB3.5 MiB+ 54.46 KiB
/wp-admin/edit-comments.php0.313 s0.356 s+0.043 s3.55 MiB3.61 MiB+ 54.01 KiB
/0.534 s0.329 s-0.205 s3.3 MiB3.32 MiB+ 17.51 KiB
Average 0.525 s0.489 s-0.035 s3.82 MiB3.89 MiB+ 73.75 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 "404 Error Page" Admin Menu