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Parking St.Gallen vs WhoisXML API Email Verification API

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

APIParking St.GallenNEW—WhoisXML API Email Verification APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
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

Parking St.Gallen vs WhoisXML API Email Verification API: common questions

Which is more reliable, Parking St.Gallen or WhoisXML API Email Verification API?

On our scheduled checks, WhoisXML API Email Verification API leads on measured uptime — Parking St.Gallen at —% versus WhoisXML API Email Verification 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 Parking St.Gallen and WhoisXML API Email Verification API need an API key?

Parking St.Gallen needs no key, while WhoisXML API Email Verification API requires a free API key. If you want to start calling without signup, reach for Parking St.Gallen first.

Can I call Parking St.Gallen and WhoisXML API Email Verification API from the browser?

Yes — both Parking St.Gallen and WhoisXML API Email Verification API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Parking St.Gallen and WhoisXML API Email Verification API free for commercial use?

Parking St.Gallen has unclear commercial terms, and WhoisXML API Email Verification 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.