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DomainDb Info vs Vercel API

Same instrument, two spec sheets — measured, not claimed.

APIDomainDb InfoNEW—Vercel APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

DomainDb Info vs Vercel API: common questions

Which is more reliable, DomainDb Info or Vercel API?

On our scheduled checks, Vercel API leads on measured uptime — DomainDb Info at —% versus Vercel API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do DomainDb Info and Vercel API need an API key?

DomainDb Info needs no key, while Vercel API requires a free API key. If you want to start calling without signup, reach for DomainDb Info first.

Can I call DomainDb Info and Vercel API from the browser?

Only Vercel API is browser-friendly — it returns CORS headers over HTTPS. DomainDb Info needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are DomainDb Info and Vercel API free for commercial use?

DomainDb Info has unclear commercial terms, and Vercel API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.