Lobsters vs Tumblr

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnoneoauth
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedOAuth — some read routes may be public
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Lobsters vs Tumblr: common questions

Which is more reliable, Lobsters or Tumblr?

On our scheduled checks, Tumblr leads on measured uptime — Lobsters 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 Lobsters and Tumblr need an API key?

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

Can I call Lobsters and Tumblr from the browser?

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

Are Lobsters and Tumblr free for commercial use?

Lobsters 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.