Bluesky vs Tumblr
Same instrument, two spec sheets — measured, not claimed.
Bluesky vs Tumblr: common questions
Which is more reliable, Bluesky or Tumblr?
On our scheduled checks, Tumblr leads on measured uptime — Bluesky at 97.1% versus Tumblr at 100% 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, Bluesky or Tumblr?
Tumblr has the lower median latency in our checks — Bluesky responds in 268 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 Bluesky and Tumblr need an API key?
Bluesky needs no key, while Tumblr requires OAuth. If you want to start calling without signup, reach for Bluesky first.
Can I call Bluesky and Tumblr from the browser?
Yes — both Bluesky 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 Bluesky and Tumblr free for commercial use?
Bluesky 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.