JavaScript Indexing

To keep up to date with what runs on a website we’ve added new tracking to see the scripts used. This method of indexing allows us to add 1000’s of new technologies to the tracking by going beyond in-memory javascript objects to viewing the actual code loaded but potentially not instantiated by the website itself.

This new tracking will help uncover some of the more hidden frameworks, such as Spin.js a technology that runs on BuiltWith but has no in-memory indexer.

You’ll start to see this new tracking added to the site soon, we’ve started with a few thousand technologies but will continually expand that!


Gary is co-founder of BuiltWith and uses a profile picture from 2006.