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404 Solution 3.0.0

Does 404 Solution work with WordPress 6.8.3 and PHP 8.1.12? A smoke test was performed on 2025-11-20 14:23:51 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	0.324 s	0.289 s	-0.035 s	3.51 MiB	3.57 MiB	+ 66.51 KiB
/wp-admin/edit.php	0.194 s	0.199 s	+0.005 s	3.57 MiB	3.66 MiB	+ 86.5 KiB
/wp-admin/post-new.php	0.739 s	1.017 s	+0.278 s	6.06 MiB	6.19 MiB	+ 135.73 KiB
/wp-admin/upload.php	0.553 s	0.385 s	-0.168 s	3.52 MiB	3.57 MiB	+ 49.24 KiB
/wp-admin/options-writing.php	0.209 s	0.170 s	-0.039 s	3.5 MiB	3.55 MiB	+ 53.26 KiB
/wp-admin/media-new.php	0.267 s	0.214 s	-0.053 s	3.49 MiB	3.55 MiB	+ 61.43 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.232 s	0.175 s	-0.057 s	3.5 MiB	3.57 MiB	+ 72.38 KiB
/wp-admin/post-new.php?post_type=page	0.619 s	0.580 s	-0.039 s	6.05 MiB	6.18 MiB	+ 131.84 KiB
/wp-admin/options-discussion.php	0.272 s	0.239 s	-0.033 s	3.5 MiB	3.55 MiB	+ 49.77 KiB
/wp-admin/edit-comments.php	0.401 s	0.398 s	-0.003 s	3.52 MiB	3.57 MiB	+ 49.26 KiB
/	0.298 s	0.219 s	-0.079 s	3.5 MiB	3.47 MiB	- 29.4 KiB
Average	0.373 s	0.353 s	-0.020 s	3.98 MiB	4.04 MiB	+ 66.05 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
	PHP	42.7%	11,865	3,572	35
	PO File	39.9%	11,089	146	11
	Markdown	5.1%	1,404	0	2
	JavaScript	3.6%	1,002	276	11
	CSS	3.4%	941	105	2
	HTML	3.2%	900	21	35
	SQL	2.0%	542	125	35
	JSON	0.2%	45	0	1
Total			27,788	4,245	132

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

[20-Nov-2025 14:24:07 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
[20-Nov-2025 14:24:07 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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