Check e-mail or username for a data breach vs ip.app

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms26676
P95 · ms1690276
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Check e-mail or username for a data breach vs ip.app: common questions

Which is more reliable, Check e-mail or username for a data breach or ip.app?

Both are neck-and-neck — Check e-mail or username for a data breach and ip.app 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, Check e-mail or username for a data breach or ip.app?

ip.app has the lower median latency in our checks — Check e-mail or username for a data breach responds in 266 ms versus ip.app at 76 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 Check e-mail or username for a data breach and ip.app need an API key?

Neither needs a paid key — Check e-mail or username for a data breach is callable with no signup, and ip.app is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Check e-mail or username for a data breach and ip.app from the browser?

Only ip.app is browser-friendly — it returns CORS headers over HTTPS. Check e-mail or username for a data breach needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Check e-mail or username for a data breach and ip.app free for commercial use?

Check e-mail or username for a data breach has unclear commercial terms, and ip.app 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.