WordPress themes

How to Find Which WordPress Plugins a Site Is Using

How to read a site's WordPress plugins from its page source, plus the limits every plugin detector runs into.

Which WordPress plugins does this site use?

Article Summary: To find which plugins a WordPress site uses, search its page source for /wp-content/plugins/. Each folder name after that path is a plugin slug, which usually matches the plugin's wordpress.org address. A detector lists them automatically, but plugins that never load files on public pages stay hidden.

  • WordPress plugins load their files from /wp-content/plugins/ followed by the plugin's folder name.
  • Plugin folder names usually match their wordpress.org page, for example /plugins/contact-form-7/.
  • WooCommerce, Elementor and Yoast SEO each leave distinctive markup that reveals them even when files are combined.
  • Plugins that only work in the dashboard, such as backups and security scanners, leave no public trace.

A WordPress theme controls the look of a site. Plugins add almost everything else: forms, SEO, page builders, caching, galleries, stores. Finding them takes the same skill as finding a theme, with a few extra quirks.

Where plugins show up

Plugins that change the front of a site load their own CSS and JavaScript files, and those files live in a predictable place:

<link rel="stylesheet" href="https://example.com/wp-content/plugins/contact-form-7/includes/css/styles.css?ver=5.9">
A plugin stylesheet in the page source

The folder after /plugins/, here contact-form-7, is the plugin's slug. Most free plugins use the same slug for their wordpress.org page, so wordpress.org/plugins/contact-form-7/ takes you straight to it.

How to list them yourself

  1. Open the page source with Ctrl+U or Option+Command+U.
  2. Search for /wp-content/plugins/.
  3. Note each different folder name that follows.
  4. Repeat on a product page or a blog post, since some plugins load only where they are needed.

Any Theme Detector does this across the whole page, turns slugs into readable names and links each plugin to its page.

Plugins with tell tale markup

Some popular plugins also add their own class names or scripts, which helps when a caching plugin has merged files together:

PluginWhat gives it away
WooCommerceClasses like woocommerce-page and wc-block
ElementorClasses like elementor-section and elementor-widget
Divi BuilderClasses starting with et_pb_
Yoast SEOA "Yoast SEO plugin" comment in the page head
JetpackFiles from s0.wp.com and Jetpack stats scripts

When we scanned 20 famous WordPress sites, Jetpack was the most common plugin we could see, followed by Gravity Forms and Contact Form 7.

Scanned with Any Theme Detector on November 1, 2026. Sites change their themes, so run a fresh check for the latest result.

Why some plugins stay hidden

A detector can only see plugins that load something on public pages. Many important plugins never do:

  • Backup, security and migration tools run in the dashboard or on the server.
  • SEO plugins often only add tags to the head, without loading any files.
  • Caching and optimization plugins may combine every file into one, hiding the original paths.

So treat any plugin list as a minimum. The real site almost always runs more.

WooCommerce: the plugin that turns WordPress into a store

WooCommerce is the most important plugin to recognize, because it changes what kind of site you are looking at. A site with WooCommerce is an online store, and its theme was often chosen for shopping features. Any Theme Detector marks WooCommerce stores with their own badge.

Host WooCommerce on CloudwaysManaged cloud hosting built for stores. Partner link.

Frequently asked questions

Can I see every plugin a WordPress site has installed?

No. You can see plugins that load files or markup on public pages. Plugins that only run in the dashboard or on the server can't be detected from outside.

How do I find the plugin from its folder name?

Search for the folder name on wordpress.org/plugins. Free plugins usually use their folder name as their page address. Premium plugins sell from their own websites.

Why does a detector show a plugin I don't recognize?

Large sites often build their own plugins for internal features. Folder names like "pmc-plugins" or "ted-plugins" are custom code, not products you can install.