Analysis of federal .gov domains

Download the data as CSV or JSON, see a breakdown by technology, browse all domains or view details for any domain using the search above.

Highlights

Curious how the above counts are calculated? You can see the specific queries and if you have any improvements, contributions are welcome.

Methodology

The General Services Administration maintains a publicly available list of all registered .gov domains. This analysis is the result of running the open source tool site inspector on every federal domain on that list and aggregating the results. For each domain, site inspector makes a series of (public) HTTP(S) and DNS calls and uses a headless browser to gather information about the response and attempts to learn more about the server’s technologies and capabilities. The code that generates this site is also open source.