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404 Solution 3.0.1

Does 404 Solution work with WordPress 6.8.3 and PHP 8.1.12? A smoke test was performed on 2025-11-21 21:54:45 UTC.

Summary

Pages 8

Plugins ‹ Test site — WordPress

Settings → 404 Solution

Settings → 404 Solution → Captured 404 URLs

Settings → 404 Solution → Logs

Settings → 404 Solution → Stats

Settings → 404 Solution → Tools

Settings → 404 Solution → Options

Test site – Just another WordPress site

Benchmark

URL	Load time			Memory usage
	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.405 s	0.349 s	-0.056 s	3.51 MiB	3.57 MiB	+ 70.3 KiB
/wp-admin/edit.php	0.223 s	0.209 s	-0.014 s	3.57 MiB	3.66 MiB	+ 90.28 KiB
/wp-admin/post-new.php	0.864 s	1.224 s	+0.360 s	6.06 MiB	6.2 MiB	+ 139.52 KiB
/wp-admin/upload.php	0.736 s	0.496 s	-0.240 s	3.52 MiB	3.58 MiB	+ 53.02 KiB
/wp-admin/options-writing.php	0.249 s	0.214 s	-0.035 s	3.5 MiB	3.56 MiB	+ 57.04 KiB
/wp-admin/media-new.php	0.311 s	0.264 s	-0.047 s	3.49 MiB	3.56 MiB	+ 65.21 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.200 s	0.224 s	+0.024 s	3.5 MiB	3.58 MiB	+ 76.16 KiB
/wp-admin/post-new.php?post_type=page	0.752 s	0.649 s	-0.103 s	6.05 MiB	6.18 MiB	+ 135.63 KiB
/wp-admin/options-discussion.php	0.297 s	0.416 s	+0.119 s	3.5 MiB	3.55 MiB	+ 53.55 KiB
/wp-admin/edit-comments.php	0.482 s	0.247 s	-0.235 s	3.52 MiB	3.57 MiB	+ 53.04 KiB
/	0.336 s	0.254 s	-0.082 s	3.5 MiB	3.47 MiB	- 26.2 KiB
Average	0.441 s	0.413 s	-0.028 s	3.98 MiB	4.04 MiB	+ 69.78 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.

Language		%	Lines of code	Comment lines	Files
	PO File	42.1%	12,750	271	12
	PHP	40.8%	12,337	3,701	35
	Markdown	4.7%	1,418	0	2
	JavaScript	3.9%	1,179	341	12
	HTML	3.8%	1,136	34	38
	CSS	2.8%	859	98	2
	SQL	1.8%	542	125	35
	JSON	0.1%	45	0	1
Total			30,266	4,570	137

PHP Code Analysis | More results »

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 7

• wp_abj404_logs_hits
• wp_abj404_logsv2
• wp_abj404_lookup
• wp_abj404_ngram_cache
• wp_abj404_permalink_cache
• wp_abj404_redirects
• wp_abj404_spelling_cache

Options wp_options 3

• abj404_installed_time
• abj404_ngram_rebuild_offset
• abj404_settings

PHP Error Log 16 lines

[21-Nov-2025 21:55:03 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 lkup_value 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_SpellChecker->__construct, 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
[21-Nov-2025 21:55:03 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_SpellChecker->__construct, 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

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