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W3 Total Cache 2.9.3

Does W3 Total Cache work with WordPress 6.9.4 and PHP 8.1.12? A smoke test was performed on 2026-03-25 20:52:32 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	0.484 s	0.596 s	+0.112 s	3.78 MiB	4.43 MiB	+ 664.65 KiB
/wp-admin/edit.php	0.383 s	0.336 s	-0.047 s	3.79 MiB	4.46 MiB	+ 693.45 KiB
/wp-admin/post-new.php	0.832 s	0.891 s	+0.059 s	6.31 MiB	6.99 MiB	+ 694.67 KiB
/wp-admin/upload.php	0.631 s	0.467 s	-0.164 s	3.74 MiB	4.38 MiB	+ 654.63 KiB
/wp-admin/options-writing.php	0.331 s	0.322 s	-0.009 s	3.72 MiB	4.27 MiB	+ 571.92 KiB
/wp-admin/media-new.php	0.520 s	0.566 s	+0.046 s	3.71 MiB	4.26 MiB	+ 570.28 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.344 s	0.325 s	-0.019 s	3.72 MiB	4.33 MiB	+ 621.55 KiB
/wp-admin/post-new.php?post_type=page	0.732 s	0.693 s	-0.039 s	6.3 MiB	6.99 MiB	+ 704.1 KiB
/wp-admin/options-discussion.php	0.384 s	0.432 s	+0.048 s	3.72 MiB	4.31 MiB	+ 601.72 KiB
/wp-admin/edit-comments.php	0.347 s	0.398 s	+0.051 s	3.74 MiB	4.35 MiB	+ 630.38 KiB
/	0.297 s	0.229 s	-0.068 s	4.12 MiB	4.33 MiB	+ 212.38 KiB
Average	0.480 s	0.478 s	-0.003 s	4.24 MiB	4.83 MiB	+ 601.79 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%	115,214	53,087	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			127,765	54,440	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

[25-Mar-2026 20:52:51 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 />
[25-Mar-2026 20:52:51 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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