Website Technology Checker
Enter any URL to see the technologies behind it, with versions where the site exposes them.
Inspect the technology stack of a website
The page's HTML, script URLs, response headers, cookies and generator tag are matched against about 100 signatures covering CMS, e-commerce, frameworks, analytics, CDN, hosting and servers.
Interpret the result
Use the result to research competitors, plan a migration or confirm that tracking and consent tools are installed where you expect.
Prioritize fixes
Only what the server sends is examined, without running JavaScript, so tools added purely in the browser can be missed and versions appear only when exposed.
How to interpret the technology stack of a website
The page's HTML, script URLs, response headers, cookies and generator tag are matched against about 100 signatures covering CMS, e-commerce, frameworks, analytics, CDN, hosting and servers.
Limits of this check
Only what the server sends is examined, without running JavaScript, so tools added purely in the browser can be missed and versions appear only when exposed.
Frequently asked questions
What does this tool check?
The page's HTML, script URLs, response headers, cookies and generator tag are matched against about 100 signatures covering CMS, e-commerce, frameworks, analytics, CDN, hosting and servers.
How should I use the result?
Use the result to research competitors, plan a migration or confirm that tracking and consent tools are installed where you expect.
What are the limits?
Only what the server sends is examined, without running JavaScript, so tools added purely in the browser can be missed and versions appear only when exposed.
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