Proxy Cache Purge 5.9.0
Does Proxy Cache Purge work with WordPress 7.0 and PHP 8.1.12? A smoke test was performed on .
Summary
Errors
| 2 | PHP warnings |
| No JavaScript exceptions | |
| All test pages loaded successfully | |
| No resource errors |
Performance
Memory usage: 119.66 KiB
The average PHP memory usage increased by this amount after activating by the plugin.
Page speed impact:
0.028 seconds
The average page load time increased by this amount after activating the plugin.
Environment
| WordPress version | 7.0 |
|---|---|
| PHP version | 8.1.12 |
| MySQL version | 10.6.10 |
| PHP memory limit | 512M |
Plugin Info
| Last updated | |
|---|---|
| Active installs | 40,000+ |
| WordPress.org page | https://wordpress.org/plugins/varnish-http-purge/ |
| Badges |
|
Pages 6
Plugins ‹ Test site — WordPress
| URL | /wp-admin/plugins.php?plugin_status=all&paged=1&s |
|---|---|
| Requested URL | /wp-admin/plugins.php?action=activate&plugin=varnish-http-purge%2Fvarnish-http-purge.php&plugin_status=all&paged=1&s&_wpnonce=c842f2644c |
| Aspect | after-activation |
| HTTP status | 200 |
| Load time | 0.582 s |
| Memory usage | 4 MiB |
| JS errors | None |
| Resource errors | None |
Proxy Cache
| URL | /wp-admin/admin.php?page=varnish-page |
|---|---|
| Aspect | menu-item |
| HTTP status | 200 |
| Load time | 0.539 s |
| Memory usage | 3.97 MiB |
| JS errors | None |
| Resource errors | None |
Proxy Cache → Check Caching
| URL | /wp-admin/admin.php?page=varnish-check-caching |
|---|---|
| Aspect | menu-item |
| HTTP status | 200 |
| Load time | 0.629 s |
| Memory usage | 3.97 MiB |
| JS errors | None |
| Resource errors | None |
Proxy Cache → Check Caching → Header Analysis
| URL | /wp-admin/admin.php?page=varnish-check-caching |
|---|---|
| Aspect | menu-item-tab |
| HTTP status | 200 |
| Load time | 0.458 s |
| Memory usage | 3.97 MiB |
| JS errors | None |
| Resource errors | None |
Proxy Cache → Get Cache Warming
| URL | /wp-admin/admin.php?page=vhp-cache-warming |
|---|---|
| Aspect | menu-item |
| HTTP status | 200 |
| Load time | 0.112 s |
| Memory usage | N/A |
| JS errors | None |
| Resource errors | None |
Test site – Just another WordPress site
| URL | / |
|---|---|
| Aspect | front-page |
| HTTP status | 200 |
| Load time | 0.226 s |
| Memory usage | 4.28 MiB |
| JS errors | None |
| Resource errors | None |
Benchmark
| URL | Load time | Memory usage | ||||
|---|---|---|---|---|---|---|
| Inactive | Active | Change | Inactive | Active | Change | |
| /wp-admin/index.php | 0.698 s | 0.631 s | -0.067 s | 3.92 MiB | 4.06 MiB | + 135.02 KiB |
| /wp-admin/edit.php | 0.562 s | 0.504 s | -0.058 s | 3.98 MiB | 4.11 MiB | + 135.45 KiB |
| /wp-admin/post-new.php | 1.993 s | 2.170 s | +0.177 s | 6.56 MiB | 6.69 MiB | + 139.06 KiB |
| /wp-admin/upload.php | 0.694 s | 1.191 s | +0.497 s | 3.89 MiB | 4.01 MiB | + 129.36 KiB |
| /wp-admin/options-writing.php | 0.502 s | 0.598 s | +0.096 s | 3.86 MiB | 3.97 MiB | + 112.94 KiB |
| /wp-admin/media-new.php | 0.935 s | 0.489 s | -0.446 s | 3.85 MiB | 3.97 MiB | + 121.13 KiB |
| /wp-admin/edit-tags.php?taxonomy=category | 0.754 s | 0.523 s | -0.231 s | 3.86 MiB | 3.99 MiB | + 126.3 KiB |
| /wp-admin/post-new.php?post_type=page | 1.756 s | 1.988 s | +0.232 s | 6.55 MiB | 6.68 MiB | + 134.65 KiB |
| /wp-admin/options-discussion.php | 0.690 s | 0.824 s | +0.134 s | 3.86 MiB | 3.97 MiB | + 109.44 KiB |
| /wp-admin/edit-comments.php | 0.524 s | 0.541 s | +0.017 s | 3.88 MiB | 4 MiB | + 116.99 KiB |
| / | 0.269 s | 0.221 s | -0.048 s | 4.23 MiB | 4.28 MiB | + 55.86 KiB |
| Average | 0.852 s | 0.880 s | +0.028 s | 4.4 MiB | 4.52 MiB | + 119.66 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 | 93.0% | 4,370 | 1,890 | 7 | |
| JSON | 6.5% | 306 | 0 | 3 | |
| CSS | 0.4% | 21 | 3 | 1 | |
| Total | 4,697 | 1,893 | 11 | ||
PHP Code Analysis | More results »
| Lines of code | 4,466 |
|---|---|
| Total complexity | 959 |
| Median class complexity | 230.0 |
| Median method complexity | 4.0 |
| Most complex class | VarnishPurger |
| Most complex function | VarnishPurger::purge_post() |
| Classes | 5 |
|---|---|
| Methods | 124 |
| Functions | 2 |
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
- vhp_purge_backend
- vhp_varnish_debug
- vhp_varnish_devmode
- vhp_varnish_ip
- vhp_varnish_max_posts_before_all
- vhp_varnish_url
PHP Error Log 2 lines
[21-May-2026 03:59:36 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /wp-admin/menu-header.php:153) in /wp-includes/pluggable.php on line 1535
[21-May-2026 03:59:36 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /wp-admin/menu-header.php:153) in /wp-includes/pluggable.php on line 1538