What CMS is this site using?
Paste a site address. We read its page like a browser and recognise what it is built with: CMS, shop, site builder, WordPress theme, server, analytics tools. Each answer comes with the clue that proves it.
How detection works
A site nearly always carries the signature of the tool that built it. We look for it in four places, from the most to the least reliable:
| Where | Example | Reliability |
|---|---|---|
| The generator tag | <meta name="generator" content="WordPress 6.6"> | the site declares it itself |
| HTTP headers | X-Shopid, X-Wix-Request-Id, Server: cloudflare | set by the platform, hard to imitate |
| Cookie names | PHPSESSID, laravel_session | specific to one piece of software, unless renamed |
| The page code | /wp-content/, cdn.shopify.com, __NEXT_DATA__ | a file path, rarely a coincidence |
A technology found through the generator tag, a header, a cookie or two distinct clues is certain. Found through a single trace in the code, it is probable, and the clue is shown so you can judge.
Why some sites show nothing
A custom-built site has no CMS to recognise. Others deliberately remove their traces (generator tag removed, files renamed), and a site rendered entirely by a script can show almost nothing to a bot. In those cases we would rather say "no CMS recognised" than guess.
The WordPress theme
The theme can be read from the path of its files: /wp-content/themes/theme-name/. A child theme and its parent both appear. The name shown is the folder name, which nearly always matches the theme's commercial name.
What this tool does not do
- It reads only one page. A technology used only elsewhere on the site (the cart, the blog) may escape it.
- It probes no hidden address and tests no vulnerability: it reads what any browser receives.
- It only recognises the technologies on its list, which has more than seventy. A rare or in-house tool is not on it.
Frequently asked questions
How can I find out which WordPress theme a site uses?
Paste its address here: if the site runs on WordPress, the theme's folder name appears in the result, along with the plugins visible on the page. The folder name nearly always matches the theme name; a custom theme often carries the site's name.
The result says "probable". Can I trust it?
It is a single trace found in the page code: often right, sometimes a file loaded from another site. The clue shown lets you check at a glance, by searching for that path in the page's source code.
Can you hide your CMS?
Partly: removing the generator tag and version numbers is good practice, as it avoids announcing which known flaws to try. File paths, on the other hand, nearly always give the tool away, and hiding them completely costs more than it brings.
The other tools
Is this site down?
Does the site answer, from our server and from another connection? With the cause when it does not.
Who is hosting this website?
Who hosts the pages, who runs the DNS and who handles the email, without mixing them up.
Check a domain name
Expiry date, registrar and status of a domain name.
Your site, page by page
The Expansel crawl goes through every page of your site and returns what is broken: pages in error, dead links, pages bots cannot read, with the exact place to fix them.