Public now
TLD reference pagesMeaning, restrictions, project fit, related options, and sources.
Stats pagesShort-label, word-label, DNS, and provider aggregates.
Starter exportStructured TLD profiles and registrar support notes.
Access
Free public access
dom4in is a public top-level domain reference and data project. Browser pages and starter JSON exports stay free.
Browser accessFree
Starter exportsFree
Account path later
Delayed downloadsLarge bulk exports should queue for 12 hours before download.
Saved interestsUse searches and questions to learn what TLD data users actually need.
No billing yetKeep this free and low-cost until there is a real production reason.
Cost posture
Static pages firstSEO surfaces should be cheap to serve from Cloudflare Pages.
Aggregates onlyPublic stats avoid exposing per-domain probe details.
Rate-limited APIWorker endpoints stay bounded to protect free-tier operation.