Report - Proxy Cache Purge 5.4.0

Does Proxy Cache Purge work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on 2025-12-04 18:47:20 UTC.

Summary

Errors

1	PHP warnings
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 63.55 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 version	6.9
PHP version	8.1.12
MySQL version	10.6.10
PHP memory limit	512M

Plugin Info

Last updated	2026-05-27T17:13:00+00:00
Active installs	40,000+
WordPress.org page	https://wordpress.org/plugins/varnish-http-purge/
Badges	Get badge code

Pages 4

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=e86a69523a
Aspect	after-activation
HTTP status	200
Load time	0.430 s
Memory usage	3.8 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	0.329 s
Memory usage	3.76 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	0.314 s
Memory usage	3.76 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.227 s
Memory usage	4.14 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.648 s	0.439 s	-0.209 s	3.77 MiB	3.85 MiB	+ 77.64 KiB
/wp-admin/edit.php	0.487 s	0.502 s	+0.015 s	3.78 MiB	3.85 MiB	+ 69.95 KiB
/wp-admin/post-new.php	1.174 s	1.026 s	-0.148 s	6.3 MiB	6.38 MiB	+ 78.74 KiB
/wp-admin/upload.php	0.585 s	0.504 s	-0.081 s	3.74 MiB	3.79 MiB	+ 52.55 KiB
/wp-admin/options-writing.php	0.399 s	0.329 s	-0.070 s	3.71 MiB	3.76 MiB	+ 56.54 KiB
/wp-admin/media-new.php	0.607 s	0.385 s	-0.222 s	3.7 MiB	3.76 MiB	+ 64.73 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.421 s	0.377 s	-0.044 s	3.71 MiB	3.79 MiB	+ 75.41 KiB
/wp-admin/post-new.php?post_type=page	0.858 s	0.747 s	-0.111 s	6.29 MiB	6.37 MiB	+ 76.23 KiB
/wp-admin/options-discussion.php	0.404 s	0.475 s	+0.071 s	3.71 MiB	3.76 MiB	+ 52.98 KiB
/wp-admin/edit-comments.php	0.386 s	0.378 s	-0.008 s	3.73 MiB	3.78 MiB	+ 52.48 KiB
/	0.335 s	0.236 s	-0.099 s	4.1 MiB	4.14 MiB	+ 41.8 KiB
Average	0.573 s	0.491 s	-0.082 s	4.23 MiB	4.29 MiB	+ 63.55 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

JSON

Language		%	Lines of code	Comment lines	Files
	PHP	85.2%	2,099	1,118	7
	JSON	12.4%	306	0	3
	make	1.5%	37	7	1
	CSS	0.9%	21	3	1
Total			2,463	1,128	12

PHP Code Analysis | More results »

Lines of code	2,100
Total complexity	572
Median class complexity	92.0
Median method complexity	3.5
Most complex class	VarnishPurger
Most complex function	VarnishPurger::purge_post()

Classes	5
Methods	78
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` 5

vhp_varnish_debug
vhp_varnish_devmode
vhp_varnish_ip
vhp_varnish_max_posts_before_all
vhp_varnish_url

PHP Error Log 1 lines

[04-Dec-2025 18:47:44 UTC] PHP Warning:  Undefined variable $source in /wp-content/plugins/varnish-http-purge/settings.php on line 241

Proxy Cache Purge 5.4.0