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IPDetails.io API vs The Guardian

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

APIIPDetails.io APIHEALTHY94The GuardianHEALTHY89
Uptime · 30d
Uptime · 90d100%98.0%
Uptime · 30d100%98.3%
P50 · ms515742
P95 · ms10722726
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree developer key — registration required
Rate limitUnpublished5000 calls/day (developer tier)
In directory since2026-07-052026-07-05
operationalpartialdownno data

IPDetails.io API vs The Guardian: common questions

Which is more reliable, IPDetails.io API or The Guardian?

On our scheduled checks, IPDetails.io API leads on measured uptime — IPDetails.io API at 100% versus The Guardian at 98.0% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, IPDetails.io API or The Guardian?

IPDetails.io API has the lower median latency in our checks — IPDetails.io API responds in 515 ms versus The Guardian at 742 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 IPDetails.io API and The Guardian need an API key?

IPDetails.io API needs no key, while The Guardian requires a free API key. If you want to start calling without signup, reach for IPDetails.io API first.

Can I call IPDetails.io API and The Guardian from the browser?

Yes — both IPDetails.io API and The Guardian 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 IPDetails.io API and The Guardian free for commercial use?

IPDetails.io API has unclear commercial terms, and The Guardian 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.