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SiteIntel vs Genderize.io

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

APISiteIntelNEW—Genderize.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredKeyless 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

SiteIntel vs Genderize.io: common questions

Which is more reliable, SiteIntel or Genderize.io?

On our scheduled checks, Genderize.io leads on measured uptime — SiteIntel at —% versus Genderize.io 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 SiteIntel and Genderize.io need an API key?

Genderize.io needs no key, while SiteIntel requires a free API key. If you want to start calling without signup, reach for Genderize.io first.

Can I call SiteIntel and Genderize.io from the browser?

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

Are SiteIntel and Genderize.io free for commercial use?

SiteIntel 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.