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InternetDB API vs Poptin API

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

APIInternetDB APIHEALTHY99Poptin APIREACHABLE100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms113698
P95 · ms22601705
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree — limits not published
Rate limitUnpublished120 req/window · 119 remaining
In directory since2026-07-052026-10-04
operationalpartialdownno data

InternetDB API vs Poptin API: common questions

Which is more reliable, InternetDB API or Poptin API?

Both are neck-and-neck — InternetDB API and Poptin API each measure 100% 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.

Which is faster, InternetDB API or Poptin API?

InternetDB API has the lower median latency in our checks — InternetDB API responds in 113 ms versus Poptin API at 698 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 InternetDB API and Poptin API need an API key?

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

Can I call InternetDB API and Poptin API from the browser?

Yes — both InternetDB API and Poptin 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 InternetDB API and Poptin API free for commercial use?

InternetDB API has unclear commercial terms, and Poptin 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.