WPIntell

Market

varnish

Varnish matters only if the evidence supports a paid workflow around keeping sites fast and proving optimization work, not a list of isolated fixes. The current commercial thesis is: Performance issues are hard to connect to business impact and hard to explain to clients. The entry wedge is to identify slow assets or configuration risks and package before/after improvements into reports.

Proof Health

Open evidence

Commercial opportunities need traceable source links before they are treated as build-worthy.

58 / 81 rows with source links

71.6% of this page's analysis has direct source links.

0 build-decision rows missing links

0 rows here require auditable proof before promotion.

23 rows with no attached evidence

0 rows have source counts but still need direct links.

Opportunity Summary

Full report

Build a performance monitoring and client reporting plugin for site owners, agencies, and maintenance teams: Performance issues are hard to connect to business impact and hard to explain to clients. The first wedge is to identify slow assets or configuration risks and package before/after improvements into reports.

The unmet need is not the individual complaint. It is the recurring business workflow: Performance issues are hard to connect to business impact and hard to explain to clients. Current stage: commercial watchlist.

Competitors

6 shown
Proxy Cache Purge 50.0K installs · 4.4
weak incumbent
-100.0%momentum 55.2weakness 16/24pain/praise

Pain still appears around support, bugs despite praise for reliable, quality.

source 1 source 2
Purge Varnish Cache 1.0K installs · 5.0
praise owner
-100.0%momentum 47.1weakness 12/11pain/praise

Pain still appears around support, bugs despite praise for quality, support.

source 1 source 2
CLP Varnish Cache 10.0K installs · 5.0
praise owner
-100.0%momentum 37.2weakness 5/7pain/praise

Pain still appears around bugs, compatibility despite praise for quality, performance.

source 1 source 2
Fastcache by Host.it 700 installs · 5.0
praise owner
-100.0%momentum 15.9weakness 0/2pain/praise

Owned praise to avoid copying: performance, support.

source 1
Cacheability 100 installs · 0.0
watchlist
-100.0%momentum 14.9weakness 0/0pain/praise

Watch for positioning evidence as more conversations are collected.

source 1

Evidence

Open evidence explorer
complaint Session cookie prevents caching

Session cookie prevents caching: users show security, bugs, compatibility pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Session cookie prevents caching Hello, Nothing is being cached when I enable this plugin because it emits a PHP session cookie, bypassing the cache always. mixed Good Varnish purge plugin that keep configurations simple

Good Varnish purge plugin that keep configurations simple: users show security, compatibility, missing feature pain that may indicate a product gap.

Proxy Cache Purge · Good Varnish purge plugin that keep configurations simple I was testing this plugin in depth last days over many Varnish installations (Ubuntu, CentOS and Debian). complaint PHP Fatal error: Uncaught TypeError: unserialize()

PHP Fatal error: Uncaught TypeError: unserialize(): users show bugs, compatibility, missing feature pain that may indicate a product gap.

Purge Varnish Cache · PHP Fatal error: Uncaught TypeError: unserialize() I got below error message. mixed Compatibility with cache enabler

Compatibility with cache enabler: users show bugs, performance, missing feature pain that may indicate a product gap.

Cacheability · Compatibility with cache enabler Does it work with cache enabler? mixed Clear cache via wp cli

Clear cache via wp cli: users show bugs, compatibility, support pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Clear cache via wp cli Hi, Is there a way to clear Varnish cache through the wp cli? mixed PHP 8 problems

PHP 8 problems: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Purge Varnish Cache · PHP 8 problems I get this warning in php 8: Undefined array key “path” in /var/www/mywebsite/wp-content/plugins/purge-varnish/class_purge_varnish.php on line 291 I get this warning in php 8: Undefined array key “path” in /var/www/mywebsite/wp-content/plugins/purge-varnish/class_purge_varnish.php on line 291 Same here. complaint Please fix CVE-2025-62126 and update or allow adoption

Please fix CVE-2025-62126 and update or allow adoption: users show security, bugs, missing feature pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Please fix CVE-2025-62126 and update or allow adoption We Fixed Security issues in the plugin, please update wordpress.org We fixed all issues, added hardening and have tested with WordPress 6.9.4 We sent a pull request to the developer on GitHub https://github.com/razvanstanga/varnish-caching-wordpress-plugin/pull/15 We sent an issue on GitHub: https://gith complaint Critical issue in site health

Critical issue in site health: users show bugs, compatibility pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Critical issue in site health Getting ‘A PHP session was created by a session_start() function call. complaint Purge Varnish Cache Plugin <= 2.6 is vulnerable to Cross Site Request

A user reports a CSRF vulnerability in Purge Varnish Cache and another commenter says the plugin appears unsupported after more than two years without releases.

Purge Varnish Cache · Purge Varnish Cache Plugin <= 2.6 is vulnerable to Cross Site Request Forgery (CSRF) complaint Varnish Stripping paypal callback session

Varnish Stripping paypal callback session: users show bugs pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Varnish Stripping paypal callback session After a user makes a paypal payment, they are redirected back to my website. praise for me the best in the world!

for me the best in the world!: users show security, compatibility, pricing pain that may indicate a product gap.

Fastcache by Host.it · for me the best in the world! praise Simply Works

Simply Works: users show security, compatibility, performance pain that may indicate a product gap.

Proxy Cache Purge · Simply Works The plugin simply works even for all types of cache servers. praise Possible malware – images/purge16x16.png

Possible malware – images/purge16x16.png: users show security, bugs, support pain that may indicate a product gap.

Purge Varnish Cache · Possible malware – images/purge16x16.png EDIT: Resolved very quick. neutral PHP 5.4 compatibility

PHP 5.4 compatibility: users show bugs, compatibility pain that may indicate a product gap.

Purge Varnish Cache · PHP 5.4 compatibility On PHP 5.4 I got fatal error from file “class_purge_varnish.php”, line 254. neutral Bug in debug.php

Bug in debug.php: users show bugs, compatibility pain that may indicate a product gap.

Proxy Cache Purge · Bug in debug.php Current version line 269 has this: $x_via = ( is_numeric( strpos( $headers['Via'], 'arnish' ) ) ) ? complaint Varnish Control Terminal

Varnish Control Terminal: users show bugs, missing feature, support pain that may indicate a product gap.

Purge Varnish Cache · Varnish Control Terminal I just installed this plugin. complaint Support for Editor-role doing pagewide purge

Support for Editor-role doing pagewide purge: users show bugs, missing feature, support pain that may indicate a product gap.

Proxy Cache Purge · Support for Editor-role doing pagewide purge Hi, we’ve got a few customers using ‘custom roles’ for their sites, eg. complaint Age Header Missing

Age Header Missing: users show bugs, missing feature, support pain that may indicate a product gap.

Proxy Cache Purge · Age Header Missing Spent most of the day working on getting this working with a remote NGINX reverse proxy. complaint Age Header Missing

Age Header Missing: users show bugs, missing feature, support pain that may indicate a product gap.

Proxy Cache Purge · Age Header Missing I am using a NGINX reverse proxy on a remote machine. complaint Varnish control terminal is not responding

Varnish control terminal is not responding: users show bugs, performance, support pain that may indicate a product gap.

Purge Varnish Cache · I already tried so many different VCls, googling hours and days and read all your support forum posts but nothing works. complaint Not working

Not working: users show bugs, compatibility, support pain that may indicate a product gap.

Purge Varnish Cache · Not working Hi, The plugin installed and proper configured but it’s not working. complaint Purge cache every update

Purge cache every update: users show compatibility, performance, missing feature pain that may indicate a product gap.

Proxy Cache Purge · Purge cache every update Hi, I would like to create a script in function.php to empty the cache each time posts and pages are updated or published. complaint Not clearing for mobile devices

Not clearing for mobile devices: users show bugs, compatibility, support pain that may indicate a product gap.

Proxy Cache Purge · Not clearing for mobile devices Hi there, I am on a shared hosting that offers enabeling Varnish cache for WordPress. mixed Plugin fails with host migrations

Plugin fails with host migrations: users show bugs, performance, migration pain that may indicate a product gap.

Proxy Cache Purge · Plugin fails with host migrations I host my site on a Dreampress host and I’ve been using this plugin for years with success and I was super comfy given the plugin is “Brought to you DreamHost.” However a couple of weeks ago Dreamhost initiated a migration of my site to another server. mixed Don't forget to uninstall it

Don't forget to uninstall it: users show performance, support, setup pain that may indicate a product gap.

Proxy Cache Purge · Don't forget to uninstall it I needed this plugin to a very specific task, to clean stubborn cache when I was updating my site. complaint Great done, Small problem

Great done, Small problem: users show bugs, compatibility, support pain that may indicate a product gap.

Purge Varnish Cache · Great done, Small problem The only working plugin for my varnish server (6.0)+php 7.2-fpm+Apache. mixed Errors found

Errors found: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Errors found I tried to e-mail this to you but got a bounce back. complaint Multi-Server // Batcache

Multi-Server // Batcache: users show compatibility, support, setup pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Multi-Server // Batcache Hi, first of all, thank you for the plugin and support! complaint CLP active but not working

CLP active but not working: users show bugs, support, setup pain that may indicate a product gap.

CLP Varnish Cache · Is there any way to do an error check? complaint Litespeed server + litespeed plug-in compatibility?

Litespeed server + litespeed plug-in compatibility?: users show compatibility, performance, missing feature pain that may indicate a product gap.

Proxy Cache Purge · Litespeed server + litespeed plug-in compatibility? complaint Support for NitroCDN

Support for NitroCDN: users show compatibility, missing feature, support pain that may indicate a product gap.

Purge Varnish Cache · Support for NitroCDN The folks at NitroPack are saying that in order to be compatible with DreamPress, the settings listed in this post need to be available (particularly the first one, with the “purgeAll” setting. question PHP warning

PHP warning: users show bugs, compatibility, missing feature pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · PHP warning Hello, We are having hundreds of PHP warnings in logs. complaint Purge not working

Purge not working: users show bugs, support pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Purge not working Hello, When i click on “Purge ALL Varnish Cache” i receive the message: —— Varnish Caching Trying to purge URL : http://ganex-site-varnish:8080/.* => 200 Purged /.* Error 200 Purged /.* Purged /.* Guru Meditation: XID: 983090 Varnish cache server —— But the cache is not purged, i can see that the Age not change to 0 in header requests, i’m complaint PageSpeed in FAQ

PageSpeed in FAQ: users show performance, setup pain that may indicate a product gap.

Proxy Cache Purge · PageSpeed in FAQ Hi, I found this FAQ on plugin details: Why is nothing caching when I use PageSpeed? mixed PHP 8 error: socket_connect()

PHP 8 error: socket_connect(): users show bugs, compatibility, support pain that may indicate a product gap.

Purge Varnish Cache · PHP 8 error: socket_connect() Hello, After updating my php from 7.4 to 8.1 This issues started happening on plugin page & when updating content: E_ERROR (Line 129) file: /wp-content/plugins/purge-varnish/class_purge_varnish.php. mixed Not flushing on plugin or theme update

Not flushing on plugin or theme update: users show bugs, compatibility, support pain that may indicate a product gap.

Proxy Cache Purge · Not flushing on plugin or theme update It would be cool if the plugin could flush cache when a plugin or theme is updated, because it usually breaks the design. mixed ‘Wrong number of arguments’ errors filling up logs

‘Wrong number of arguments’ errors filling up logs: users show bugs, compatibility, support pain that may indicate a product gap.

Purge Varnish Cache · ‘Wrong number of arguments’ errors filling up logs We’ve got a similar issue to the one reported in this topic . mixed Problem with Beaver Builder

Problem with Beaver Builder: users show bugs, compatibility, support pain that may indicate a product gap.

Purge Varnish Cache · I asked to Beaver support and they answer that the problems seem related to Varnish plugin, here the support answer: The issue appears to be due to the following errors coming from the Purge Varnish plugin: Notice: Undefined index: url in …/plugins/purge-varnish/class_purge_varnish.php on line 394 Notice: Undefined index: path in …/plugins/purge-varnish/clas mixed Getting Error: A valid URL was not provided

Getting Error: A valid URL was not provided: users show bugs, missing feature, setup pain that may indicate a product gap.

Varnish/Nginx Proxy Caching · Getting Error: A valid URL was not provided I have installed the plugin with dynamic host and use SSL options selected. complaint Vulnerability for CLP Varnish Cache

The thread reports that CLP Varnish Cache allowed unauthenticated attackers to perform unauthorized actions because of a missing capability check.

CLP Varnish Cache · This makes it possible for unauthenticated attackers to perform an unauthorized action.