Telegraph vs Tumblr
Same instrument, two spec sheets — measured, not claimed.
Telegraph vs Tumblr: common questions
Which is more reliable, Telegraph or Tumblr?
Both are neck-and-neck — Telegraph 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, Telegraph or Tumblr?
Tumblr has the lower median latency in our checks — Telegraph responds in 444 ms versus Tumblr at 146 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 Telegraph and Tumblr need an API key?
Both ask you to authenticate — Telegraph uses an API key and Tumblr uses OAuth. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call Telegraph and Tumblr from the browser?
Yes — both Telegraph 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 Telegraph and Tumblr free for commercial use?
Telegraph 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.