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Nager.Date vs Tumblr

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

APINager.DateNEW—TumblrREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnoneoauth
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree, no keyOAuth — some read routes may be public
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Nager.Date vs Tumblr: common questions

Which is more reliable, Nager.Date or Tumblr?

On our scheduled checks, Tumblr leads on measured uptime — Nager.Date at —% versus Tumblr 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 Nager.Date and Tumblr need an API key?

Nager.Date needs no key, while Tumblr requires OAuth. If you want to start calling without signup, reach for Nager.Date first.

Can I call Nager.Date and Tumblr from the browser?

Yes — both Nager.Date and Tumblr 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 Nager.Date and Tumblr free for commercial use?

Nager.Date has unclear commercial terms, and Tumblr 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.