BuiltWith is a web site profiler tool. Upon looking up a page, BuiltWith returns all the technologies it can find on the page. BuiltWith’s goal is to help developers, researchers and designers find out what technologies pages are using which may help them to decide what technologies to implement themselves.

BuiltWith technology tracking includes widgets (snap preview), analytics (Google, Nielsen), frameworks (.NET, Java), publishing (WordPress, Blogger), advertising (DoubleClick, AdSense), CDNs (Amazon S3, Limelight), standards (XHTML,RSS), hosting software (Apache, IIS, CentOS, Debian).

Frequently Asked Questions

How does BuiltWith.com work?
When you lookup a page on BuiltWith, a robot goes off deep into cyberspace and looks at the page in question. It them compares that page with the technology list at BuiltWith.com and if it finds any matches, reports the information to you.

Does BuiltWith.com use reverse engineering?
No! BuiltWith.com doesn’t do any trickery to find out what technologies a page is using. All the information that BuiltWith.com reports on can be found yourself by clicking View..Source.. in your browser.

Doesn’t reporting this information make it easier for hackers to get into my site?
No! See the last question.

Website Optimizer

The BuiltWith Website Optimizer provides SEO, Technology, Web Standards, Monetization reports as well as a host of other tools to improve your website and business.

Technology Trends

BuiltWith Internet Technology Trends provides free information regarding the most popular technology used across multiple areas including analytics, advertising, frameworks and website widgets to name but a few.



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