Lobsters vs PostStack
Same instrument, two spec sheets — measured, not claimed.
Lobsters vs PostStack: common questions
Which is more reliable, Lobsters or PostStack?
Both are neck-and-neck — Lobsters and PostStack 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, Lobsters or PostStack?
Lobsters has the lower median latency in our checks — Lobsters responds in 243 ms versus PostStack at 1066 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 Lobsters and PostStack need an API key?
Lobsters needs no key, while PostStack requires a free API key. If you want to start calling without signup, reach for Lobsters first.
Can I call Lobsters and PostStack from the browser?
Neither sends browser-friendly CORS headers reliably, so call Lobsters and PostStack from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Lobsters and PostStack free for commercial use?
Lobsters has unclear commercial terms, and PostStack 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.