eNanoMapper database vs serpstack

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

Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d100%98.3%
P50 · ms1601492
P95 · ms33101442
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

eNanoMapper database vs serpstack: common questions

Which is more reliable, eNanoMapper database or serpstack?

Both are neck-and-neck — eNanoMapper database and serpstack each measure 99.02% 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, eNanoMapper database or serpstack?

serpstack has the lower median latency in our checks — eNanoMapper database responds in 1601 ms versus serpstack at 492 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 eNanoMapper database and serpstack need an API key?

eNanoMapper database needs no key, while serpstack requires a free API key. If you want to start calling without signup, reach for eNanoMapper database first.

Can I call eNanoMapper database and serpstack from the browser?

Neither sends browser-friendly CORS headers reliably, so call eNanoMapper database and serpstack from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are eNanoMapper database and serpstack free for commercial use?

eNanoMapper database has unclear commercial terms, and serpstack 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.