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Universities List vs WhoisXML API IP Geolocation API

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

APIUniversities ListNEW—WhoisXML API IP Geolocation APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSnoyes
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

Universities List vs WhoisXML API IP Geolocation API: common questions

Which is more reliable, Universities List or WhoisXML API IP Geolocation API?

On our scheduled checks, WhoisXML API IP Geolocation API leads on measured uptime — Universities List at —% versus WhoisXML API IP Geolocation 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 Universities List and WhoisXML API IP Geolocation API need an API key?

Universities List needs no key, while WhoisXML API IP Geolocation API requires a free API key. If you want to start calling without signup, reach for Universities List first.

Can I call Universities List and WhoisXML API IP Geolocation API from the browser?

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

Are Universities List and WhoisXML API IP Geolocation API free for commercial use?

Universities List has unclear commercial terms, and WhoisXML API IP Geolocation 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.