Report - Proxy Cache Purge 5.5.0

Does Proxy Cache Purge work with WordPress 6.9 and PHP 8.1.12? A smoke test was performed on 2025-12-05 11:26:28 UTC.

Summary

Errors

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

Performance

Memory usage: 80.35 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=bb23c9c0ce
Aspect	after-activation
HTTP status	200
Load time	0.402 s
Memory usage	3.81 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	0.348 s
Memory usage	3.78 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	0.296 s
Memory usage	3.78 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.263 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	0.527 s	0.480 s	-0.047 s	3.77 MiB	3.86 MiB	+ 91.65 KiB
/wp-admin/edit.php	0.425 s	0.361 s	-0.064 s	3.78 MiB	3.86 MiB	+ 83.96 KiB
/wp-admin/post-new.php	0.878 s	1.263 s	+0.385 s	6.3 MiB	6.41 MiB	+ 112.75 KiB
/wp-admin/upload.php	0.510 s	0.496 s	-0.014 s	3.74 MiB	3.8 MiB	+ 66.55 KiB
/wp-admin/options-writing.php	0.374 s	0.342 s	-0.032 s	3.71 MiB	3.78 MiB	+ 70.55 KiB
/wp-admin/media-new.php	0.564 s	0.398 s	-0.166 s	3.7 MiB	3.78 MiB	+ 78.74 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.419 s	0.335 s	-0.084 s	3.71 MiB	3.8 MiB	+ 89.41 KiB
/wp-admin/post-new.php?post_type=page	0.766 s	0.753 s	-0.013 s	6.29 MiB	6.4 MiB	+ 110.24 KiB
/wp-admin/options-discussion.php	0.381 s	0.496 s	+0.115 s	3.71 MiB	3.78 MiB	+ 67.05 KiB
/wp-admin/edit-comments.php	0.364 s	0.412 s	+0.048 s	3.73 MiB	3.8 MiB	+ 66.55 KiB
/	0.321 s	0.249 s	-0.072 s	4.1 MiB	4.14 MiB	+ 46.37 KiB
Average	0.503 s	0.508 s	+0.005 s	4.23 MiB	4.31 MiB	+ 80.35 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	88.5%	2,805	1,410	7
	JSON	9.7%	306	0	3
	make	1.2%	37	7	1
	CSS	0.7%	21	3	1
Total			3,169	1,420	12

PHP Code Analysis | More results »

Lines of code	2,816
Total complexity	741
Median class complexity	123.0
Median method complexity	4.0
Most complex class	VarnishPurger
Most complex function	VarnishPurger::purge_post()

Classes	5
Methods	96
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

[05-Dec-2025 11:26:50 UTC] PHP Warning:  Undefined variable $source in /wp-content/plugins/varnish-http-purge/settings.php on line 261

Proxy Cache Purge 5.5.0