Find companies by the markup on their website.
Searches the technology index for domains whose live HTML contains the
given terms — a <script src> path, a vendor host, or any tag/attribute.
Because it matches the page’s raw source, it finds every site carrying a
given widget or tech stack even when each site runs on its own domain, so
it is the way to build a list of companies using a specific tool.
Returns matching domains ranked by authority plus the total available for
paging via offset. Billed at the vendor’s actual per-result cost.
Authorizations
Company API key - scoped to a specific company. Generate from the Integrations page in your dashboard.
Body
HTML terms to search for and paging options
Find companies by markup in their website's live HTML
Company ID
Up to 10 HTML terms to match against tags, attributes and their content. A script src path ("/widget.js"), a vendor host ("cdn.customgpt.ai") or any markup snippet works. Matched against the site's raw source, so the site's own domain is irrelevant — this is how you find every site carrying a given widget or tech.
Optional: up to 10 keywords that must also appear in the page title, description or meta keywords, to narrow the results.
"entry" (default, order-insensitive) or "strict_entry" (exact match).
Rows to return, 1-1000 (default 100). Billed per result.
Row offset for pagination, 0-9999 (default 0).
Drop bare-IP hosts (crawl noise). Default true.
Response
Matching domains, total available, and credits charged

