Postman Echo vs SiteIntel

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms2011005
P95 · ms8153849
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

Postman Echo vs SiteIntel: common questions

Which is more reliable, Postman Echo or SiteIntel?

Both are neck-and-neck — Postman Echo and SiteIntel 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, Postman Echo or SiteIntel?

Postman Echo has the lower median latency in our checks — Postman Echo responds in 201 ms versus SiteIntel at 1005 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 Postman Echo and SiteIntel need an API key?

Postman Echo needs no key, while SiteIntel requires a free API key. If you want to start calling without signup, reach for Postman Echo first.

Can I call Postman Echo and SiteIntel from the browser?

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

Are Postman Echo and SiteIntel free for commercial use?

Postman Echo has unclear commercial terms, and SiteIntel 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.