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.