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Kickbox vs Tumblr

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

APIKickboxHEALTHY92TumblrREACHABLE100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms592208
P95 · ms36301101
Authnoneoauth
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — open disposable-address checkOAuth — some read routes may be public
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Kickbox vs Tumblr: common questions

Which is more reliable, Kickbox or Tumblr?

Both are neck-and-neck — Kickbox and Tumblr 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, Kickbox or Tumblr?

Tumblr has the lower median latency in our checks — Kickbox responds in 592 ms versus Tumblr at 208 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 Kickbox and Tumblr need an API key?

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

Can I call Kickbox and Tumblr from the browser?

Yes — both Kickbox 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 Kickbox and Tumblr free for commercial use?

Kickbox 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.