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DomainDb Info vs Postman Echo

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

APIDomainDb InfoNEW—Postman EchoNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

DomainDb Info vs Postman Echo: common questions

Which is more reliable, DomainDb Info or Postman Echo?

On our scheduled checks, Postman Echo leads on measured uptime — DomainDb Info at —% versus Postman Echo 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 Postman Echo need an API key?

Neither needs a paid key — DomainDb Info is callable with no signup, and Postman Echo is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call DomainDb Info and Postman Echo from the browser?

Neither sends browser-friendly CORS headers reliably, so call DomainDb Info and Postman Echo from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are DomainDb Info and Postman Echo free for commercial use?

DomainDb Info has unclear commercial terms, and Postman Echo 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.