W3 Total Cache 2.10.4

Does W3 Total Cache work with WordPress 7.0.3 and PHP 8.1.12? A smoke test was performed on .

Summary

Errors
2Unrecognized messages in the PHP error log
No JavaScript exceptions
All test pages loaded successfully
No resource errors
Performance

Memory usage: 628.41 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 version7.0.3
PHP version8.1.12
MySQL version10.6.10
PHP memory limit512M
Plugin Info
Last updated
Active installs 900,000+
WordPress.org page https://wordpress.org/plugins/w3-total-cache/
Badges

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Pages 20

Plugins ‹ Test site — WordPress

Page screenshot: Plugins ‹ Test site — WordPress
URL /wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL /wp-admin/plugins.php?action=activate&plugin=w3-total-cache%2Fw3-total-cache.php&plugin_status=all&paged=1&s&_wpnonce=6d3b54b175
Aspect after-activation
HTTP status 200
Load time 1.179 s
Memory usage 5.13 MiB
JS errors None
Resource errors None

Performance

Page screenshot: Performance
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_dashboard
Aspect menu-item
HTTP status 200
Load time 0.682 s
Memory usage 5.43 MiB
JS errors None
Resource errors None

Performance → Feature Showcase

Page screenshot: Performance  → Feature Showcase
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_feature_showcase
Aspect menu-item
HTTP status 200
Load time 0.566 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → General Settings

Page screenshot: Performance  → General Settings
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_general
Aspect menu-item
HTTP status 200
Load time 0.802 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Page Cache

Page screenshot: Performance  → Page Cache
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_pgcache
Aspect menu-item
HTTP status 200
Load time 0.563 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Minify

Page screenshot: Performance  → Minify
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_minify
Aspect menu-item
HTTP status 200
Load time 0.562 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Database Cache

Page screenshot: Performance  → Database Cache
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_dbcache
Aspect menu-item
HTTP status 200
Load time 0.724 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Object Cache

Page screenshot: Performance  → Object Cache
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_objectcache
Aspect menu-item
HTTP status 200
Load time 0.568 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Browser Cache

Page screenshot: Performance  → Browser Cache
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_browsercache
Aspect menu-item
HTTP status 200
Load time 0.567 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Cache Groups

Page screenshot: Performance  → Cache Groups
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_cachegroups
Aspect menu-item
HTTP status 200
Load time 0.698 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → CDN

Page screenshot: Performance  → CDN
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_cdn
Aspect menu-item
HTTP status 200
Load time 0.598 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Support

Page screenshot: Performance  → Support
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_support
Aspect menu-item
HTTP status 200
Load time 0.617 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Google PageSpeed

Page screenshot: Performance  → Google PageSpeed
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_pagespeed
Aspect menu-item
HTTP status 200
Load time 0.687 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → User Experience

Page screenshot: Performance  → User Experience
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_userexperience
Aspect menu-item
HTTP status 200
Load time 0.565 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Install

Page screenshot: Performance  → Install
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_install
Aspect menu-item
HTTP status 200
Load time 0.540 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Setup Guide

Page screenshot: Performance  → Setup Guide
URL /wp-admin/admin.php?page=w3tc_setup_guide
Aspect menu-item
HTTP status 200
Load time 0.658 s
Memory usage 4.77 MiB
JS errors None
Resource errors None

Performance → About

Page screenshot: Performance  → About
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_about
Aspect menu-item
HTTP status 200
Load time 0.656 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Extensions

Page screenshot: Performance  → Extensions
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_extensions
Aspect menu-item
HTTP status 200
Load time 0.537 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Performance → Statistics

Page screenshot: Performance  → Statistics
URL /wp-admin/admin.php?page=w3tc_setup_guide
Requested URL /wp-admin/admin.php?page=w3tc_stats
Aspect menu-item
HTTP status 200
Load time 0.683 s
Memory usage 4.76 MiB
JS errors None
Resource errors None

Test site – Just another WordPress site

Page screenshot: Test site – Just another WordPress site
URL /
Aspect front-page
HTTP status 200
Load time 0.233 s
Memory usage 4.41 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php0.623 s0.643 s+0.020 s3.92 MiB4.64 MiB+ 733.3 KiB
/wp-admin/edit.php0.537 s0.497 s-0.040 s3.98 MiB4.62 MiB+ 652.01 KiB
/wp-admin/post-new.php2.180 s1.659 s-0.521 s6.56 MiB7.28 MiB+ 736.34 KiB
/wp-admin/upload.php0.723 s1.004 s+0.281 s3.89 MiB4.56 MiB+ 683.59 KiB
/wp-admin/options-writing.php0.734 s0.539 s-0.195 s3.86 MiB4.43 MiB+ 584.08 KiB
/wp-admin/media-new.php0.627 s0.602 s-0.025 s3.85 MiB4.43 MiB+ 593.71 KiB
/wp-admin/edit-tags.php?taxonomy=category0.582 s0.681 s+0.099 s3.86 MiB4.55 MiB+ 697.84 KiB
/wp-admin/post-new.php?post_type=page1.790 s1.907 s+0.117 s6.55 MiB7.27 MiB+ 740.12 KiB
/wp-admin/options-discussion.php0.566 s0.634 s+0.068 s3.86 MiB4.46 MiB+ 610.26 KiB
/wp-admin/edit-comments.php0.552 s0.535 s-0.017 s3.88 MiB4.56 MiB+ 696.42 KiB
/0.345 s0.214 s-0.131 s4.23 MiB4.41 MiB+ 184.8 KiB
Average 0.842 s0.810 s-0.031 s4.41 MiB5.02 MiB+ 628.41 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
JavaScript
Language % Lines of code Comment lines Files
PHP85.9%108,02853,957626
JavaScript10.5%13,2251,30440
CSS3.2%4,0089319
Java0.2%231771
Markdown0.1%11103
INI0.1%84166
XML0.0%5741
HTML0.0%701
SVG0.0%404
Total 125,755 55,451 701

PHP Code Analysis | More results »

Lines of code 84,197
Total complexity 18,699
Median class complexity 16.0
Median method complexity 2.0
Most complex class PgCache_ContentGrabber
Most complex function W3TCL\Minify\JSMinPlus::parseTree()
Classes 538
Methods 4,762
Functions 73

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

PHP Error Log 6 lines

[06-Aug-2026 22:42:35 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 />
[06-Aug-2026 22:42:35 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 />
See also: All tests for this plugin, How to Hide W3 Total Cache Admin Menus