Free tools
Built With
Type an address. See the CMS, analytics, ads, frameworks, hosting, and server software hiding behind any page, with the evidence to prove it.
How to use it
- Open Built With under Tools and enter any public https address.
- Press Lift the hood. The profile takes a few seconds.
- Read the technology wall, grouped by category. Every card shows its evidence and a sure or likely badge.
WordPress deep dive
WordPress sites get an extra section: the theme with its real name, version, and author read from the stylesheet header, every plugin folder leaked into the markup with versions, and whether the REST API and xmlrpc doors are advertised.
How sure works
Sure means a direct marker: a generator tag, a versioned header, a known script host. Likely means a strong fingerprint that could theoretically be faked. Fingerprinting is best-effort by nature: stripped headers and bundled scripts can hide things, which is why the evidence ships with every hit.
Limits
Five fresh profiles a day per visitor. Hand-built pages with no fingerprints get an honest empty report instead of guesses.