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DomainDb Info vs OpenQR

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

APIDomainDb InfoHEALTHY97OpenQRHEALTHY80
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms2341125
P95 · ms16352851
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

DomainDb Info vs OpenQR: common questions

Which is more reliable, DomainDb Info or OpenQR?

Both are neck-and-neck — DomainDb Info and OpenQR each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, DomainDb Info or OpenQR?

DomainDb Info has the lower median latency in our checks — DomainDb Info responds in 234 ms versus OpenQR at 1125 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do DomainDb Info and OpenQR need an API key?

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

Can I call DomainDb Info and OpenQR from the browser?

Only OpenQR 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 OpenQR free for commercial use?

DomainDb Info has unclear commercial terms, and OpenQR 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.