What is this website built with?
Paste any public URL. This reads the HTML the server sends and reports the fingerprints in it — CMS, page builder, framework, CSS system, analytics, fonts, CDNs and the third-party hosts the page pulls from.
How this tool works, and what it cannot see
It fetches the page once through our Worker (a browser is not allowed to read another site’s HTML) and matches known signatures in the markup, script URLs and stylesheet URLs.
It does not run the page’s JavaScript, so a stack that only reveals itself at runtime will not appear. What you see is what a crawler sees on the first byte.
Nothing is stored. The response is cached for ten minutes so a popular link costs the target site one request, not thousands.
FAQ
Can it detect a WordPress site that hides wp-content?
Often yes — a hidden asset path still leaves traces in the REST API link, the generator meta tag, block class names or theme stylesheet names. If a site rewrites all of them, this tool will honestly report nothing rather than guess.
Why does it show fewer technologies than other checkers?
Because it only reports what it can see in the served markup. It never infers a technology from a header alone or from what the domain is likely to use.
Does checking a site notify its owner?
The request appears in their access log with a user agent identifying CopyAnySiteTools and a link to this page. It is one ordinary GET, the same as opening the site in a browser.