WhosBuilt
About
WhosBuilt turns public website signals into a compact evidence report. It checks builder clues, contact paths, tech stack, hosting, DNS, SSL, WHOIS registration, domain age, and creator metadata so you can decide who likely built a site and what to check next.
Start with the who built this website guide or use WhosBuilt as a website tech stack checker when the stack is the only thing you need.
WhosBuilt is built by Hwee-Boon Yar, a solo indie developer who has been writing and delivering software for 30 years. His tool stack appears alongside profiles of other independent builders on IndieDevUse.
Another project by WhosBuilt's creator is Stacknaut, a SaaS starter kit for developers using AI coding agents.