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W3 Total Cache 2.9.2

Does W3 Total Cache work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on 2026-03-11 16:29:07 UTC.

Summary

Pages 20

Plugins ‹ Test site — WordPress

Performance

Performance → Feature Showcase

Performance → General Settings

Performance → Page Cache

Performance → Minify

Performance → Database Cache

Performance → Object Cache

Performance → Browser Cache

Performance → Cache Groups

Performance → CDN

Performance → Support

Performance → Google PageSpeed

Performance → User Experience

Performance → Install

Performance → Setup Guide

Performance → About

Performance → Extensions

Performance → Statistics

Test site – Just another WordPress site

Benchmark

URL	Load time			Memory usage
	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.379 s	0.474 s	+0.095 s	3.78 MiB	4.42 MiB	+ 660.51 KiB
/wp-admin/edit.php	0.361 s	0.295 s	-0.066 s	3.78 MiB	4.46 MiB	+ 689.3 KiB
/wp-admin/post-new.php	0.847 s	1.001 s	+0.154 s	6.31 MiB	6.98 MiB	+ 690.53 KiB
/wp-admin/upload.php	0.766 s	0.384 s	-0.382 s	3.74 MiB	4.37 MiB	+ 650.49 KiB
/wp-admin/options-writing.php	0.387 s	0.420 s	+0.033 s	3.71 MiB	4.27 MiB	+ 567.78 KiB
/wp-admin/media-new.php	0.790 s	0.388 s	-0.402 s	3.7 MiB	4.26 MiB	+ 566.14 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.320 s	0.305 s	-0.015 s	3.72 MiB	4.32 MiB	+ 617.41 KiB
/wp-admin/post-new.php?post_type=page	0.700 s	0.703 s	+0.003 s	6.3 MiB	6.98 MiB	+ 699.96 KiB
/wp-admin/options-discussion.php	0.396 s	0.491 s	+0.095 s	3.71 MiB	4.3 MiB	+ 597.58 KiB
/wp-admin/edit-comments.php	0.356 s	0.428 s	+0.072 s	3.73 MiB	4.35 MiB	+ 626.25 KiB
/	0.393 s	0.202 s	-0.191 s	4.11 MiB	4.31 MiB	+ 208.23 KiB
Average	0.518 s	0.463 s	-0.055 s	4.24 MiB	4.82 MiB	+ 597.65 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	90.2%	115,164	53,004	632
	JavaScript	6.3%	8,002	1,163	40
	CSS	3.1%	4,019	93	19
	Java	0.2%	231	77	1
	Markdown	0.1%	147	0	4
	INI	0.1%	84	16	6
	XML	0.0%	57	4	1
	HTML	0.0%	7	0	1
	SVG	0.0%	4	0	4
Total			127,715	54,357	708

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.

Options wp_options 6

• w3tc_cached_notices
• w3tc_extensions_hooks
• w3tc_install_date
• w3tc_post_update_admin_tasks_ran_versions
• w3tc_post_update_generic_tasks_ran_versions
• w3tc_state

PHP Error Log 6 lines

[11-Mar-2026 16:29:26 UTC] W3 Total Cache environment exception: Edit file <strong>/wp-config.php</strong> and add next lines:<textarea style="height: 100px; width: 100%;">/** Enable W3 Total Cache */
define(&#039;WP_CACHE&#039;, true); // Added by W3 Total Cache
</textarea><br />
[11-Mar-2026 16:29:26 UTC] W3 Total Cache environment exception: Edit file <strong>/wp-config.php</strong> and add next lines:<textarea style="height: 100px; width: 100%;">/** Enable W3 Total Cache */
define(&#039;WP_CACHE&#039;, true); // Added by W3 Total Cache
</textarea><br />

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