Administrative Divisions DB vs Proweblook IP Checker

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms3956
P95 · ms1114232
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (see repo)Unverified
Free tierFree, no API key required (static JSON via CDN)Free tier — API key required
Rate limitNone (static files served over CDN)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Administrative Divisions DB vs Proweblook IP Checker: common questions

Which is more reliable, Administrative Divisions DB or Proweblook IP Checker?

Both are neck-and-neck — Administrative Divisions DB and Proweblook IP Checker 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, Administrative Divisions DB or Proweblook IP Checker?

Administrative Divisions DB has the lower median latency in our checks — Administrative Divisions DB responds in 39 ms versus Proweblook IP Checker at 56 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 Administrative Divisions DB and Proweblook IP Checker need an API key?

Administrative Divisions DB needs no key, while Proweblook IP Checker requires a free API key. If you want to start calling without signup, reach for Administrative Divisions DB first.

Can I call Administrative Divisions DB and Proweblook IP Checker from the browser?

Yes — both Administrative Divisions DB and Proweblook IP Checker 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 Administrative Divisions DB and Proweblook IP Checker free for commercial use?

Administrative Divisions DB has unclear commercial terms, and Proweblook IP Checker 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.