Does W3 Total Cache work with WordPress 7.1 and PHP 8.1.12? A smoke test was performed on .
| 2 | Unrecognized messages in the PHP error log |
| No JavaScript exceptions | |
| All test pages loaded successfully | |
| No resource errors |
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.
| WordPress version | 7.1 |
|---|---|
| PHP version | 8.1.12 |
| MySQL version | 10.6.10 |
| PHP memory limit | 512M |
| Last updated | |
|---|---|
| Active installs | 900,000+ |
| WordPress.org page | https://wordpress.org/plugins/w3-total-cache/ |
| Badges |
|
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| URL | / |
|---|---|
| Aspect | front-page |
| HTTP status | 200 |
| Load time | 0.247 s |
| Memory usage | 4.8 MiB |
| JS errors | None |
| Resource errors | None |
| URL | Load time | Memory usage | ||||
|---|---|---|---|---|---|---|
| Inactive | Active | Change | Inactive | Active | Change | |
| /wp-admin/index.php | 1.384 s | 0.906 s | -0.478 s | 4.23 MiB | 4.8 MiB | + 584.06 KiB |
| /wp-admin/edit.php | 0.553 s | 0.583 s | +0.030 s | 4.28 MiB | 4.85 MiB | + 583.66 KiB |
| /wp-admin/post-new.php | 1.634 s | 2.562 s | +0.928 s | 6.78 MiB | 7.48 MiB | + 718.89 KiB |
| /wp-admin/upload.php | 2.053 s | 1.045 s | -1.008 s | 4.25 MiB | 4.8 MiB | + 570.71 KiB |
| /wp-admin/options-writing.php | 0.552 s | 0.583 s | +0.031 s | 4.22 MiB | 4.77 MiB | + 561.98 KiB |
| /wp-admin/media-new.php | 0.625 s | 0.579 s | -0.046 s | 4.21 MiB | 4.78 MiB | + 579.15 KiB |
| /wp-admin/edit-tags.php?taxonomy=category | 0.796 s | 0.959 s | +0.163 s | 4.22 MiB | 4.79 MiB | + 584.02 KiB |
| /wp-admin/post-new.php?post_type=page | 1.764 s | 1.711 s | -0.053 s | 6.76 MiB | 7.47 MiB | + 734.66 KiB |
| /wp-admin/options-discussion.php | 1.206 s | 1.366 s | +0.160 s | 4.23 MiB | 4.78 MiB | + 563.15 KiB |
| /wp-admin/edit-comments.php | 0.579 s | 0.608 s | +0.029 s | 4.24 MiB | 4.8 MiB | + 566.97 KiB |
| / | 0.316 s | 0.274 s | -0.042 s | 4.6 MiB | 4.8 MiB | + 203.73 KiB |
| Average | 1.042 s | 1.016 s | -0.026 s | 4.73 MiB | 5.28 MiB | + 568.27 KiB |
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 | 86.1% | 110,928 | 54,500 | 629 | |
| JavaScript | 10.4% | 13,366 | 1,404 | 43 | |
| CSS | 3.1% | 4,008 | 93 | 19 | |
| Java | 0.2% | 231 | 77 | 1 | |
| Markdown | 0.1% | 111 | 0 | 3 | |
| 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 | 128,796 | 56,094 | 707 | ||
| 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 |
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.
wp_options 6[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('WP_CACHE', 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('WP_CACHE', true); // Added by W3 Total Cache
</textarea><br />