A focused BuiltWith alternative for one-domain evidence reports
Run a free report for public builder clues, contact paths, stack, hosting, DNS, headers, SSL, registrar, brand, and site-age signals without starting from a giant technographic database.
What this checks
- Tool-first evidence report above the fold
- Public technology and infrastructure evidence
- Builder, contact, and freshness clues for lead qualification
Buying a list of companies using a technology?
WhosBuilt also offers dated research packages for named technologies. The catalog shows each reviewed cohort's size, sources and limits. Available contact-free previews let you inspect company names, domains and source scope before enquiring about the full package.
Choose a package for a defined set of accounts to research. Use the free report above when you already have one domain in mind. If you need a continuously updated database, bulk API access or exhaustive coverage, evaluate suppliers against those requirements; a dated WhosBuilt package does not provide them.
Review the dated sources and limitations on the list page, then enquire to confirm the cohort, price, file formats and license before payment. Public signals do not verify current paid use or purchasing intent.
How I treat the evidence
BuiltWith is useful. WhosBuilt is narrower: quick public evidence for one domain, with lead-friendly context around who built it, who to contact, and where it is hosted.
Start with one free report. If the domain matters, use the full report and save it for comparison.
Is WhosBuilt a full BuiltWith clone?
No. It is a leaner report for public website signals, creator clues, contact paths, and infrastructure context.
When should I use this instead?
Use it when you want a fast answer for one domain and enough evidence to decide whether the lead is worth saving.