shipapis
StarSubmit an APISubmit API

Microlink.io vs WhoisXML API Email Verification API

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

APIMicrolink.ioDEAD0WhoisXML API Email Verification APIDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseN/A — returns metadata extracted from the URL you passUnverified
Free tierFree tier — no key required (Pro plans need a key)Free tier — API key required
Rate limitFree tier is rate-limited per day (see pricing)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Microlink.io vs WhoisXML API Email Verification API: common questions

Which is more reliable, Microlink.io or WhoisXML API Email Verification API?

Both are neck-and-neck — Microlink.io and WhoisXML API Email Verification API each measure 0.0% 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.

Do Microlink.io and WhoisXML API Email Verification API need an API key?

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

Can I call Microlink.io and WhoisXML API Email Verification API from the browser?

Yes — both Microlink.io 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 Microlink.io and WhoisXML API Email Verification API free for commercial use?

Microlink.io 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.