Free tool by MD Niamul

Free CMS Checker Find Out What CMS, Theme and Technology Any Website Uses

WordPress, Shopify, Wix or Something Else? See the Platform and the Proof in Seconds

No login or extension
Evidence for every result
Free Excel report

Enter any website address and this free CMS checker tells you what it is built with: the CMS or website builder, theme, page builder, plugins, ecommerce platform, JavaScript framework, server, CDN and marketing tools. Every result shows the evidence it was detected from, in a live dashboard with an Excel report to download or receive by email.

198Technologies detected
34CMS and site platforms
850+Projects delivered
600+Five-star reviews
MD Niamul, creator of the free CMS checker
upworkTop Rated Plus
CMS + TechFree Checker Tool
OfficialStape Partner

Platforms and Technologies It Detects

WordPress
Shopify
WooCommerce
Wix
Squarespace
Webflow
Magento
Joomla
Drupal
GoHighLevel
Elementor
Themes
Plugins
Next.js
Server
CDN
Hosting
Marketing Tags
FREE CMS CHECKER

What CMS Is This Website Using?

Enter any website. In a few seconds you will see its CMS or platform, theme, page builder, plugins and the rest of its technology stack.

CMS CheckerCMS · Theme · Page builder · Plugins · Ecommerce · Server · CDN · Marketing tools
Free · No login

The address you enter is sent to our server, which loads the page once to read its public code and headers. We keep a simple log of the address checked and the result. No personal details are saved unless you ask for the report by email.

WordPress, Shopify, Wix, Webflow and 30 moreShows the evidence for every resultExcel report to download or email
WHAT IT DETECTS

What Does the Free CMS Checker Detect?

Nearly 200 technologies in more than 30 categories, each shown with the evidence it was found from.

CMS and Website Builders

WordPress, Shopify, Wix, Squarespace, Webflow, Joomla, Drupal, Magento, BigCommerce, Ghost, HubSpot CMS, Framer and more.

Themes and Page Builders

The WordPress theme folder, the Shopify theme name, and builders such as Elementor, Divi, WPBakery, Bricks and Gutenberg.

Plugins and Apps

WordPress plugins that load files on the page, with readable names, and Shopify app extensions.

Ecommerce and Payments

WooCommerce, Shopify, Magento, BigCommerce, plus Stripe, PayPal, Shop Pay, Klarna and Afterpay.

Frameworks and Libraries

Next.js, Nuxt, React, Vue, Angular, Astro, jQuery, Bootstrap, Tailwind CSS, Laravel, Django and ASP.NET.

Marketing and Tracking

Google Tag Manager, GA4, Meta Pixel, TikTok, LinkedIn, Clarity, Hotjar, Klaviyo, HubSpot, chat widgets and consent banners.

Server, CDN and Hosting

Web server, Cloudflare, CloudFront, Fastly, and hosts such as WP Engine, Kinsta, Vercel and Netlify.

Security Headers

HTTPS, HSTS, clickjacking protection, Content Security Policy and version numbers your server reveals.

How Does the CMS Checker Work?

Three steps, a few seconds, no browser extension to install.

01

Enter a website

Paste the address of your own site, a competitor or a site whose design you like.

02

The tool reads its fingerprints

It loads the page once and looks at the code, generator tags, file paths, response headers and cookies that each platform leaves behind.

03

See the platform and the proof

You get the CMS, theme, plugins and tools, each with the evidence behind it and a confidence level. Download it as Excel.

What Is a CMS Checker?

A CMS (content management system) is the software a website is built on, such as WordPress, Shopify, Wix or Webflow. A CMS checker, also called a CMS detector or “what CMS is this site using” tool, identifies that software from the outside.

This free CMS checker goes further than the platform name. It also shows the theme, page builder, visible plugins, ecommerce system, JavaScript frameworks, marketing tags, server and CDN: a full website technology checker without installing a browser extension.

How does it know?

Every platform leaves fingerprints. WordPress loads files from /wp-content/. Shopify uses cdn.shopify.com and sets a Shopify.theme object. Webflow adds data-wf-site attributes. Servers send headers such as x-shopify-stage or x-wix-request-id. The tool looks for these signals and only reports a platform as confirmed when the evidence is strong. The evidence is listed next to every result so you can check it yourself.

Why check a website’s CMS?

  • Competitor research: see which platform, theme and apps a successful store uses.
  • Before quoting a project: know whether a prospect’s site is WordPress, Shopify or custom before the first call.
  • Tracking and integrations: the right tracking setup depends on the platform.
  • Design inspiration: find the theme or builder behind a site you like.
  • Security review: check what your own site reveals to the public.

What this tool cannot see

It reads one page as a visitor would. Plugins that only work in the admin area, server-side tools, and tags loaded through Google Tag Manager leave no trace in the page source, so they are not listed. Some sites deliberately hide their platform, and some custom-built sites use no CMS at all. In those cases the tool says “No known CMS detected” instead of guessing.

Popular Platforms This CMS Detector Recognises

And what each one tells you about a website.

PlatformTypeExtra details shown
WordPressCMSVersion, theme, child theme, plugins, page builder
ShopifyEcommerce platformTheme name and version, store address, currency, app extensions
WooCommerceEcommerce on WordPressVersion, payment and add-on plugins
Wix, Squarespace, Webflow, FramerWebsite buildersPlatform confirmation with evidence
Magento, BigCommerce, PrestaShop, OpenCartEcommerce platformsPlatform confirmation with evidence
Joomla, Drupal, Ghost, HubSpot CMS, TYPO3CMSVersion where published
GoHighLevel, ClickFunnels, Kajabi, LeadpagesFunnel and course platformsPlatform confirmation with evidence
Next.js, Nuxt, Gatsby, AstroJavaScript frameworksFramework behind custom or headless sites
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FAQ

Frequently Asked Questions About the Free CMS Checker

Is the CMS checker really free?

Yes. The check, the dashboard and the Excel report are free, with no login, no browser extension and no payment details.

What is a CMS checker?

A CMS checker, or CMS detector, identifies the content management system or website builder a site runs on, such as WordPress, Shopify, Wix, Squarespace or Webflow, by reading the public fingerprints each platform leaves in a page.

How accurate is the CMS checker?

A platform is only reported as confirmed when strong evidence is found, such as WordPress file paths, a Shopify CDN and theme object, or a platform-specific response header. The evidence is shown beside every result. If a site hides its platform or is custom built, the tool says “No known CMS detected” instead of guessing.

Which CMS and platforms can it detect?

It recognises 34 CMS, ecommerce, website-builder and funnel platforms, including WordPress, Shopify, WooCommerce, Wix, Squarespace, Webflow, Magento, BigCommerce, Joomla, Drupal, Ghost, HubSpot CMS, Framer, GoHighLevel, ClickFunnels and Kajabi, and 198 technologies in total.

Can it find the WordPress theme and plugins?

Yes. It shows the theme folder, a child theme when there is one, and every plugin that loads files on the page you checked, with readable names. Plugins that only run in the admin area leave no trace and cannot be seen by any outside tool.

Can it find a Shopify theme?

Yes. For Shopify stores it shows the theme name, the base theme and version when published, the store’s myshopify.com address, the currency and the app extensions loaded on the page.

Do I need a browser extension?

No. Extensions such as Wappalyzer run inside your browser. This tool runs on a web page, so it works on any device, including phones, and gives you a report you can download or share.

Why does it say “No known CMS detected”?

The site may be custom built, use a headless setup, block automated requests or deliberately remove platform fingerprints. Check the Technology Stack tab: frameworks such as Next.js or Laravel are often shown even when there is no CMS.

Why are some marketing tools missing?

Tools loaded through Google Tag Manager are not in the page source, so they do not appear here. Use the Free Tracking Audit Tool to see every tag inside a GTM container.

Is it legal to check another website’s CMS?

Yes. The tool loads a page once, like any visitor, and reads only public information that the website sends to every browser.

Tracking Built for Your Platform

I am MD Niamul, a conversion tracking and web analytics specialist. Whatever your site is built on, WordPress, Shopify, Webflow, GoHighLevel or custom code, I set up GA4, conversion tracking and server-side tracking that measures every lead and sale accurately.