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DomainDb Info vs Genderize.io

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

APIDomainDb InfoHEALTHY97Genderize.ioHEALTHY62
Uptime · 30d
Uptime · 90d100%41.2%
Uptime · 30d100%36.7%
P50 · ms234632
P95 · ms16351060
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedKeyless usage limited (x-rate-limit-limit: 25 observed); 2,500 names/mo with a free key
Rate limitUnpublishedKeyless cap 25 per x-rate-limit-limit header; remaining/reset exposed in response headers
In directory since2026-07-052026-07-05
operationalpartialdownno data

DomainDb Info vs Genderize.io: common questions

Which is more reliable, DomainDb Info or Genderize.io?

On our scheduled checks, DomainDb Info leads on measured uptime — DomainDb Info at 100% versus Genderize.io at 41.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, DomainDb Info or Genderize.io?

DomainDb Info has the lower median latency in our checks — DomainDb Info responds in 234 ms versus Genderize.io at 632 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 Genderize.io need an API key?

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

Can I call DomainDb Info and Genderize.io from the browser?

Only Genderize.io 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 Genderize.io free for commercial use?

DomainDb Info has unclear commercial terms, and Genderize.io 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.