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GSA Site Scanning

DeveloperUS

api.gsa.gov

Technology and accessibility scans of every public US federal government website.

Capabilities (3)

GET /v1/data/gsa-site-scanning/analysis1 credit

Returns aggregate counts over the same filters the websites capability accepts, without the records: total matching sites, how many distinct final base domains they span, how many distinct agencies, and the scanning engine's own queue depths (waiting, active, delayed, failed). A four-key object of about 130 bytes, whatever the filter matches.

target_url_domain?final_url_domain?final_url_live?target_url_redirects?target_url_agency_owner?target_url_bureau_owner?dap_detected_final_url?
GET /v1/data/gsa-site-scanning/website1 credit

Returns the single most recent scan record for one seeded target URL, as a bare object with no pagination envelope: owning agency, bureau and branch, final resolved URL and status code, DAP detection with pageview and visit counts, detected CMS, login provider, tooling and third-party service domains, USWDS class usage, robots.txt and sitemap.xml results, HTTPS enforcement and HSTS, accessibility violations, Core Web Vitals, and the status of every sub-scan. An unmatched hostname returns HTTP 404 with a JSON body, not an empty object.

target_url
GET /v1/data/gsa-site-scanning/websites1 credit

Returns one page of scanned US federal government websites as {items, meta, links}, where meta carries totalItems/itemCount/itemsPerPage/totalPages/currentPage and links carries ready-made first/previous/next/last URLs. Each item is the site's full 105-field scan record: seeded and final URL, owning agency, bureau and branch, liveness, redirect and HTTP status, DAP analytics detection with pageview and visit counts, detected CMS, login provider, tooling and third-party service domains, USWDS design-system usage, robots.txt and sitemap.xml findings, HTTPS enforcement and HSTS, accessibility violations, Core Web Vitals, and the status of every sub-scan.

target_url_domain?final_url_domain?final_url_live?target_url_redirects?target_url_agency_owner?target_url_bureau_owner?dap_detected_final_url?page?limit?

Licence

Work of the United States federal government, not subject to copyright in the US (17 U.S.C. 105). Free to use, including commercially, with the agency named as the source.

https://open.gsa.gov/api/site-scanning-api/

Attribution

Display this wherever you show the data. It arrives on every response as provenance.attribution_text.

Source: US General Services Administration

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