HackMyIP vs Zippopotam.us

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms157219
P95 · ms2167753
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseUnverifiedUnverified
Free tierCompletely free — no API key, no signupFree — limits not published
Rate limit100 req/windowUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

HackMyIP vs Zippopotam.us: common questions

Which is more reliable, HackMyIP or Zippopotam.us?

Both are neck-and-neck — HackMyIP and Zippopotam.us 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, HackMyIP or Zippopotam.us?

HackMyIP has the lower median latency in our checks — HackMyIP responds in 157 ms versus Zippopotam.us at 219 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 HackMyIP and Zippopotam.us need an API key?

Neither needs a paid key — HackMyIP is callable with no signup, and Zippopotam.us is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call HackMyIP and Zippopotam.us from the browser?

Yes — both HackMyIP and Zippopotam.us 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 HackMyIP and Zippopotam.us free for commercial use?

HackMyIP allows commercial use on its free tier, and Zippopotam.us 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.