Free CMS Detector

Enter a URL

About Free CMS Detector

This tool detects the CMS behind any public website. CMS stands for content management system. You enter a URL and it scans the page source. Known signatures reveal WordPress or Shopify or Wix.

Signature matching reads fingerprints left by each platform. Theme paths and script names give the first hints. Generator tags and comment blocks add more clues. Matching these patterns names the platform.

The tool does not detect version numbers. It names the platform only. That is enough for research and quoting work. Version detail would need deeper server access.

Agencies use it to scope migrations and rebuilds. Researchers use it to map platform market share. Developers use it to check competitor stacks. Anyone can scan any public site for free.

How to use

1. Type or paste the full website URL into the box.
2. Include the protocol so the page loads correctly.
3. Press the detect button to start the scan.
4. Wait while the tool fetches and reads the page source.
5. Read the detected platform name in the result panel.
6. Review the matched signatures that confirmed the result.
7. Scan competitor URLs one by one to compare platforms.
8. Save the platform names in your research notes.

Why use it

• It reveals competitor tech stacks in seconds.
• It quotes migrations with the right platform facts.
• It matches projects to skilled platform developers.
• It audits client sites for outdated platform choices.
• It tracks platform trends across a market.
• It offers free scans with no signup needed.

Tips

• Test the homepage first for the most signatures.
• Scan inner pages if the homepage gives no match.
• Retest after cache clears if results look stale.
• Treat weak matches as hints and verify by hand.
• Remember that no version data is shown here.

Frequently asked questions

What platforms can the detector find

It covers WordPress and Shopify and Wix. It also matches Squarespace and Joomla and Drupal. Many smaller platforms have signatures too. New signatures get added over time.

How does signature matching work

The tool downloads the public page source. It scans for theme paths and script names. It checks generator tags and markup patterns. A strong match names the platform.

Can it detect the exact version

It cannot detect version numbers. Version data stays hidden in most modern builds. Other tools can dig for versions. This scan stays simple and fast.

Why does a site show no match

Fully custom sites leave no platform signatures. Some owners strip or mask their fingerprints. Security plugins can hide generator tags. A manual look may still reveal clues.

Is detection accurate on cached pages

Cached pages can show old theme data. A stale cache may confuse the match. Recheck after the cache clears. Live pages give the best result.

How long does a scan take

A scan takes only a few seconds. Slow servers can add a little delay. Most results appear right away. Retry once if the page times out.

Can I scan competitor sites freely

The tool reads only public page source. Any browser can view the same code. No private data is touched. Use results for research and planning.

Why do some sites block the scan

Some firewalls block automated requests. They may rate limit the tool. A manual view of the source still works. The tool can retry later.

Does the detector work on subpages

It can scan any page URL. Inner pages may show extra theme signatures. The homepage usually gives the strongest match. Test both for best results.

Knowing the platform behind a site speeds up research. Paste a URL and read the signature match. The answer arrives in seconds. That knowledge makes every tech decision easier.