Report - 404 Solution 2.35.5

Does 404 Solution work with WordPress 6.4 and PHP 8.1.12? A smoke test was performed on 2023-11-08 15:46:26 UTC.

Summary

Errors

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

Performance

Memory usage: 37.67 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	6.4
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2025-04-29T21:28:00+00:00
Active installs	10,000+
WordPress.org page	https://wordpress.org/plugins/404-solution/
Badges	Get badge code

Pages 3

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=404-solution%2F404-solution.php&plugin_status=all&paged=1&s&_wpnonce=3c05d7e7a2
Aspect	after-activation
HTTP status	200
Load time	1.589 s
Memory usage	3.36 MiB
JS errors	None
Resource errors	None

Settings → 404 Solution

URL	/wp-admin/options-general.php?page=abj404_solution
Aspect	menu-item
HTTP status	200
Load time	0.330 s
Memory usage	3.39 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.200 s
Memory usage	3.31 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.346 s	0.331 s	-0.015 s	3.37 MiB	3.42 MiB	+ 46.61 KiB
/wp-admin/edit.php	0.220 s	0.234 s	+0.014 s	3.4 MiB	3.45 MiB	+ 46.89 KiB
/wp-admin/post-new.php	1.052 s	0.621 s	-0.431 s	5.45 MiB	5.5 MiB	+ 51.75 KiB
/wp-admin/upload.php	0.688 s	0.478 s	-0.210 s	3.32 MiB	3.35 MiB	+ 29.52 KiB
/wp-admin/options-writing.php	0.231 s	0.208 s	-0.023 s	3.31 MiB	3.33 MiB	+ 22.13 KiB
/wp-admin/media-new.php	0.316 s	0.260 s	-0.056 s	3.29 MiB	3.33 MiB	+ 41.71 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.202 s	0.200 s	-0.002 s	3.31 MiB	3.35 MiB	+ 46.96 KiB
/wp-admin/post-new.php?post_type=page	0.618 s	0.589 s	-0.029 s	5.44 MiB	5.49 MiB	+ 51.39 KiB
/wp-admin/options-discussion.php	0.266 s	0.274 s	+0.008 s	3.3 MiB	3.33 MiB	+ 31.68 KiB
/wp-admin/edit-comments.php	0.267 s	0.230 s	-0.037 s	3.33 MiB	3.36 MiB	+ 29.53 KiB
/	0.270 s	0.202 s	-0.068 s	3.3 MiB	3.32 MiB	+ 16.16 KiB
Average	0.407 s	0.330 s	-0.077 s	3.71 MiB	3.75 MiB	+ 37.67 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

Markdown

Language		%	Lines of code	Comment lines	Files
	PHP	72.6%	8,616	1,889	29
	Markdown	10.6%	1,255	0	2
	JavaScript	5.5%	649	170	8
	HTML	5.4%	639	19	22
	SQL	4.2%	495	125	33
	CSS	1.5%	175	16	1
	JSON	0.4%	45	0	1
Total			11,874	2,219	96

PHP Code Analysis | More results »

Lines of code	8,668
Total complexity	1,879
Median class complexity	16.5
Median method complexity	3.0
Most complex class	ABJ_404_Solution_PluginLogic
Most complex function	ABJ_404_Solution_PluginLogic::updateOptionsFromPOST()

Classes	28
Methods	373
Functions	8

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 5

wp_abj404_logsv2
wp_abj404_lookup
wp_abj404_permalink_cache
wp_abj404_redirects
wp_abj404_spelling_cache

Options `wp_options` 1

abj404_settings

PHP Error Log 16 lines

[08-Nov-2023 15:46:44 UTC] WordPress database error Table 'wordpress.wp_abj404_lookup' doesn't exist for query 
/* ------------------ /wp-content/plugins/404-solution/includes/sql/correctLookupTableIssue.sql BEGIN ----- */ 

delete from wp_abj404_lookup
where lkup_value in (
    select * from (
	    SELECT DISTINCT lkup_value 
	    FROM wp_abj404_lookup 
	    group by lkup_value 
	    having count(lkup_value) > 1
    ) a
)

/* ------------------ /wp-content/plugins/404-solution/includes/sql/correctLookupTableIssue.sql END ----- */ 
 made by activate_plugin, plugin_sandbox_scrape, include_once('/plugins/404-solution/404-solution.php'), require_once('/plugins/404-solution/includes/Loader.php'), ABJ_404_Solution_SpellChecker::init, ABJ_404_Solution_SpellChecker::getInstance, ABJ_404_Solution_PluginLogic->getOptions, ABJ_404_Solution_PluginLogic->updateToNewVersion, ABJ_404_Solution_PluginLogic->updateToNewVersionAction, ABJ_404_Solution_DatabaseUpgradesEtc->createDatabaseTables, ABJ_404_Solution_DatabaseUpgradesEtc->reallyCreateDatabaseTables, ABJ_404_Solution_DatabaseUpgradesEtc->correctIssuesBefore, ABJ_404_Solution_DataAccess->correctDuplicateLookupValues, ABJ_404_Solution_DataAccess->queryAndGetResults
[08-Nov-2023 15:46:44 UTC] WordPress database error Table 'wordpress.wp_abj404_spelling_cache' doesn't exist for query delete from wp_abj404_spelling_cache where matchdata is null or matchdata = '' made by activate_plugin, plugin_sandbox_scrape, include_once('/plugins/404-solution/404-solution.php'), require_once('/plugins/404-solution/includes/Loader.php'), ABJ_404_Solution_SpellChecker::init, ABJ_404_Solution_SpellChecker::getInstance, ABJ_404_Solution_PluginLogic->getOptions, ABJ_404_Solution_PluginLogic->updateToNewVersion, ABJ_404_Solution_PluginLogic->updateToNewVersionAction, ABJ_404_Solution_DatabaseUpgradesEtc->createDatabaseTables, ABJ_404_Solution_DatabaseUpgradesEtc->reallyCreateDatabaseTables, ABJ_404_Solution_DatabaseUpgradesEtc->correctIssuesBefore, ABJ_404_Solution_DatabaseUpgradesEtc->correctMatchData, ABJ_404_Solution_DataAccess->queryAndGetResults

404 Solution 2.35.5