What is this website
built with?
Enter a domain to see the technologies its site runs on (CMS, ecommerce platform, analytics, CDN, mail host and more) and the services the domain has accounts with, each with its evidence. Free, no sign-up.
Five free lookups a day. Enter a domain or any web address on it.
What the lookup finds
Read from the site's homepage, headers, cookies, scripts, robots.txt and DNS records.
The stack
CMS, ecommerce platform, frameworks, analytics and tag managers, advertising pixels, payments, CDN, hosting and mail, grouped by category.
Service accounts
Tools the company uses but does not show on its site, proven by the verification records in its DNS.
Evidence and confidence
Each finding shows what matched (a header, cookie, script, meta tag or DNS record) and how sure the match is.
Need it for thousands of domains?
The technology lookup API answers the same question as JSON.
One request per domain returns every technology with its categories, confidence and evidence, plus the redirects, headers, meta tags, scripts and DNS records that were read. Pay per domain from a prepaid balance; a call that fails is not billed.
Frequently asked questions
What can this tool detect?
Technologies a website shows in its pages, headers, cookies, scripts and DNS records: CMSs such as WordPress, ecommerce platforms such as Shopify, analytics and tag managers, advertising pixels, payment processors, CDNs, hosting and mail providers, and more.
Is it free?
Yes. Each visitor gets five free lookups a day without an account. For more, or to look domains up from your own code, sign up and use the technology lookup API.
How does it work?
It reads the domain's homepage with its headers, cookies and scripts, along with its robots.txt and DNS records, and matches what it finds against a set of known technology fingerprints.
What are accounts?
Services the domain has an account with that only its DNS shows, such as a verification record a service asks you to add. A service the site also shows is listed under technologies instead.
How accurate is it?
Every finding comes with a confidence score and the evidence that matched, so you can check it. A technology that leaves no trace in the homepage, its headers or its DNS records cannot be seen from outside.
Can I get the results as JSON?
Yes. The technology lookup API returns the same findings as JSON, with the homepage facts and DNS records it read, for one request per domain.
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