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Website Tech Stack Checker

Paste any website URL to see its CMS, programming language, frameworks, server, CDN, analytics, SSL certificate, and security headers — all in one deep scan.

This tool sends one request to the website you enter from our server (so your browser doesn't have to — most sites block that) and reads its public response. It never logs in, submits forms, or accesses anything private.

Frequently Asked Questions

How does this detect a site's technology?

It looks at the same public signals a browser sees anyway — response headers, the page's HTML (meta tags, script and stylesheet references, class names), and the SSL certificate. It never logs in or accesses anything private, and it can only see what any visitor's browser would see.

Can this check my home network's WiFi speed or signal strength?

No — this tool analyzes a website's server-side technology, which is unrelated to WiFi. Browsers also have no way to read WiFi signal strength or network names for any website to use, by design (it's a privacy/security restriction, not a limitation of this tool specifically).

Why can't it detect every plugin or exact version?

Detection relies on what's visible in the page's public HTML and headers. Well-hidden or server-only technology (backend frameworks with no visible fingerprint, custom in-house tools, plugins that don't add any script/class/header) can't be detected this way — no tool, including commercial ones, can see technology that leaves no visible trace.

Is checking someone else's website with this legal?

This tool only reads the same public homepage response any visitor's browser receives — it's the same information you'd see using "View Page Source" yourself. It doesn't bypass any login, probe hidden paths, or access non-public data.