404s 3.5.9

Does 404s work with WordPress 6.8.2 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
2PHP deprecation warnings
1Database errors
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 47.78 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 version6.8.2
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs <10
WordPress.org page https://wordpress.org/plugins/404s/
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Pages 7

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=404s%2F404s.php&plugin_status=all&paged=1&s&_wpnonce=a43fcef9c3
Aspect after-activation
HTTP status 200
Load time 0.322 s
Memory usage 3.59 MiB
JS errors None
Resource errors None

404s

Page screenshot: 404s
URL /wp-admin/edit.php?post_type=404s
Aspect menu-item
HTTP status 200
Load time 0.162 s
Memory usage 3.59 MiB
JS errors None
Resource errors None

404s → Add New 404

Page screenshot: 404s → Add New 404
URL /wp-admin/post-new.php?post_type=404s
Aspect menu-item
HTTP status 200
Load time 0.803 s
Memory usage 3.62 MiB
JS errors None
Resource errors None

404s → 404s

Page screenshot: 404s → 404s
URL /wp-admin/edit.php?post_type=404s&page=404s
Aspect menu-item
HTTP status 200
Load time 0.177 s
Memory usage 3.54 MiB
JS errors None
Resource errors None

404s → Settings

Page screenshot: 404s → Settings
URL /wp-admin/edit.php?post_type=404s&page=404settings
Aspect menu-item
HTTP status 200
Load time 0.181 s
Memory usage 3.54 MiB
JS errors None
Resource errors None

404s → Export 404s

Page screenshot: 404s → Export 404s
URL /wp-admin/edit.php?post_type=404s&page=panel404sExport
Aspect menu-item
HTTP status 200
Load time 0.155 s
Memory usage 3.54 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.201 s
Memory usage 3.46 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.392 s0.292 s-0.100 s3.51 MiB3.56 MiB+ 59.8 KiB
/wp-admin/edit.php0.248 s0.199 s-0.049 s3.57 MiB3.61 MiB+ 37.55 KiB
/wp-admin/post-new.php0.872 s1.156 s+0.284 s6.06 MiB6.12 MiB+ 61.68 KiB
/wp-admin/upload.php0.844 s0.484 s-0.360 s3.52 MiB3.56 MiB+ 40.03 KiB
/wp-admin/options-writing.php0.247 s0.216 s-0.031 s3.5 MiB3.54 MiB+ 44.02 KiB
/wp-admin/media-new.php0.297 s0.237 s-0.060 s3.49 MiB3.54 MiB+ 52.22 KiB
/wp-admin/edit-tags.php?taxonomy=category0.221 s0.198 s-0.023 s3.5 MiB3.57 MiB+ 62.89 KiB
/wp-admin/post-new.php?post_type=page0.786 s0.597 s-0.189 s6.05 MiB6.11 MiB+ 57.2 KiB
/wp-admin/options-discussion.php0.325 s0.292 s-0.033 s3.5 MiB3.54 MiB+ 40.52 KiB
/wp-admin/edit-comments.php0.488 s0.506 s+0.018 s3.52 MiB3.56 MiB+ 40.02 KiB
/0.375 s0.235 s-0.140 s3.43 MiB3.46 MiB+ 29.68 KiB
Average 0.463 s0.401 s-0.062 s3.97 MiB4.02 MiB+ 47.78 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
PHP99.3%1,146989
CSS0.7%801
Total 1,154 98 10

PHP Code Analysis | More results »

Lines of code 1,183
Total complexity 105
Median class complexity 0.0
Median method complexity 0.0
Most complex class
Most complex function tomas_404s_setitngs()
Classes 0
Methods 0
Functions 23

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 1

Options wp_options 1

Custom Post Types 1

ID Name
404s404s

PHP Error Log 3 lines

[31-Jul-2025 05:00:20 UTC] PHP Deprecated:  File upgrade-functions.php is <strong>deprecated</strong> since version 2.5.0! Use wp-admin/includes/upgrade.php instead. in /wp-includes/functions.php on line 6121
[31-Jul-2025 05:00:20 UTC] PHP Deprecated:  Function supports_collation is <strong>deprecated</strong> since version 3.5.0! Use wpdb::has_cap( 'collation' ) instead. in /wp-includes/functions.php on line 6121
[31-Jul-2025 05:00:20 UTC] WordPress database error Unknown table 'wordpress.wp_404s' for query DROP TABLE `wp_404s` made by activate_plugin, plugin_sandbox_scrape, include_once('/plugins/404s/404s.php'), require_once('/plugins/404s/404sinstall.php'), toams_404s_Install
See also: All tests for this plugin, How to Hide 404s Admin Menus