W3 Total Cache 2.10.6

Does W3 Total Cache work with WordPress 7.1 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: 568.27 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 version7.1
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=edc2515ab2
Aspect after-activation
HTTP status 200
Load time 0.898 s
Memory usage 5.22 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 0.800 s
Memory usage 5.54 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 0.650 s
Memory usage 4.86 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 0.626 s
Memory usage 4.86 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 0.968 s
Memory usage 4.86 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 0.659 s
Memory usage 4.86 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 0.618 s
Memory usage 4.86 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 0.624 s
Memory usage 4.86 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 0.621 s
Memory usage 4.86 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 0.619 s
Memory usage 4.86 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 0.833 s
Memory usage 4.86 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 0.632 s
Memory usage 4.86 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 1.162 s
Memory usage 4.86 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 0.866 s
Memory usage 4.87 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 0.620 s
Memory usage 4.86 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 0.564 s
Memory usage 4.87 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 0.718 s
Memory usage 4.86 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 0.610 s
Memory usage 4.86 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 0.602 s
Memory usage 4.86 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 0.247 s
Memory usage 4.8 MiB
JS errors None
Resource errors None

Benchmark

URL Load time Memory usage
Inactive Active Change Inactive Active Change
/wp-admin/index.php1.384 s0.906 s-0.478 s4.23 MiB4.8 MiB+ 584.06 KiB
/wp-admin/edit.php0.553 s0.583 s+0.030 s4.28 MiB4.85 MiB+ 583.66 KiB
/wp-admin/post-new.php1.634 s2.562 s+0.928 s6.78 MiB7.48 MiB+ 718.89 KiB
/wp-admin/upload.php2.053 s1.045 s-1.008 s4.25 MiB4.8 MiB+ 570.71 KiB
/wp-admin/options-writing.php0.552 s0.583 s+0.031 s4.22 MiB4.77 MiB+ 561.98 KiB
/wp-admin/media-new.php0.625 s0.579 s-0.046 s4.21 MiB4.78 MiB+ 579.15 KiB
/wp-admin/edit-tags.php?taxonomy=category0.796 s0.959 s+0.163 s4.22 MiB4.79 MiB+ 584.02 KiB
/wp-admin/post-new.php?post_type=page1.764 s1.711 s-0.053 s6.76 MiB7.47 MiB+ 734.66 KiB
/wp-admin/options-discussion.php1.206 s1.366 s+0.160 s4.23 MiB4.78 MiB+ 563.15 KiB
/wp-admin/edit-comments.php0.579 s0.608 s+0.029 s4.24 MiB4.8 MiB+ 566.97 KiB
/0.316 s0.274 s-0.042 s4.6 MiB4.8 MiB+ 203.73 KiB
Average 1.042 s1.016 s-0.026 s4.73 MiB5.28 MiB+ 568.27 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
PHP86.1%110,92854,500629
JavaScript10.4%13,3661,40443
CSS3.1%4,0089319
Java0.2%231771
Markdown0.1%11103
INI0.1%84166
XML0.0%5741
HTML0.0%701
SVG0.0%404
Total 128,796 56,094 707

PHP Code Analysis | More results »

Lines of code 86,138
Total complexity 19,287
Median class complexity 16.0
Median method complexity 2.0
Most complex class PgCache_ContentGrabber
Most complex function W3TCL\Minify\JSMinPlus::parseTree()
Classes 541
Methods 4,858
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

[04-Sep-2026 17:56:21 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 />
[04-Sep-2026 17:56:21 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