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ELI vs ItsThisForThat

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

APIELINEW—ItsThisForThatNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished (docs ask you not to hammer it)
In directory since2026-07-052026-07-05
operationalpartialdownno data

ELI vs ItsThisForThat: common questions

Which is more reliable, ELI or ItsThisForThat?

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

Do ELI and ItsThisForThat need an API key?

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

Can I call ELI and ItsThisForThat from the browser?

Only ELI is browser-friendly — it returns CORS headers over HTTPS. ItsThisForThat needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ELI and ItsThisForThat free for commercial use?

ELI has unclear commercial terms, and ItsThisForThat 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.