Report - 404 Solution 2.36.10

Does 404 Solution work with WordPress 6.8.3 and PHP 8.1.12? A smoke test was performed on 2025-10-01 14:02:37 UTC.

Summary

Errors

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

Performance

Memory usage: 46.89 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	6.8.3
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=53199e47e7
Aspect	after-activation
HTTP status	200
Load time	1.569 s
Memory usage	3.57 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	0.411 s
Memory usage	3.57 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.285 s
Memory usage	3.46 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.399 s	0.361 s	-0.038 s	3.51 MiB	3.55 MiB	+ 48.51 KiB
/wp-admin/edit.php	0.222 s	0.237 s	+0.015 s	3.57 MiB	3.62 MiB	+ 48.65 KiB
/wp-admin/post-new.php	0.826 s	0.698 s	-0.128 s	6.06 MiB	6.18 MiB	+ 117.59 KiB
/wp-admin/upload.php	0.779 s	0.423 s	-0.356 s	3.52 MiB	3.55 MiB	+ 31.24 KiB
/wp-admin/options-writing.php	0.252 s	0.216 s	-0.036 s	3.5 MiB	3.54 MiB	+ 35.26 KiB
/wp-admin/media-new.php	0.379 s	0.483 s	+0.104 s	3.49 MiB	3.53 MiB	+ 43.43 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.194 s	0.216 s	+0.022 s	3.5 MiB	3.56 MiB	+ 54.38 KiB
/wp-admin/post-new.php?post_type=page	0.674 s	0.686 s	+0.012 s	6.05 MiB	6.1 MiB	+ 49.69 KiB
/wp-admin/options-discussion.php	0.419 s	0.342 s	-0.077 s	3.5 MiB	3.53 MiB	+ 31.77 KiB
/wp-admin/edit-comments.php	0.245 s	0.243 s	-0.002 s	3.52 MiB	3.55 MiB	+ 31.26 KiB
/	0.375 s	0.252 s	-0.123 s	3.43 MiB	3.46 MiB	+ 23.98 KiB
Average	0.433 s	0.378 s	-0.055 s	3.97 MiB	4.02 MiB	+ 46.89 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	72.4%	9,117	2,019	29
	Markdown	11.1%	1,395	0	2
	HTML	5.4%	677	21	22
	JavaScript	5.2%	649	170	8
	SQL	4.2%	526	125	34
	CSS	1.4%	175	16	1
	JSON	0.4%	45	0	1
Total			12,584	2,351	97

PHP Code Analysis | More results »

Lines of code	9,172
Total complexity	1,993
Median class complexity	26.0
Median method complexity	3.0
Most complex class	ABJ_404_Solution_PluginLogic
Most complex function	ABJ_404_Solution_PluginLogic::updateOptionsFromPOST()

Classes	28
Methods	386
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

[01-Oct-2025 14:02:57 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
[01-Oct-2025 14:02:57 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 2.36.10