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Catchdoms Security API vs SiteIntel

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

APICatchdoms Security APIHEALTHY93SiteIntelHEALTHY84
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms4371005
P95 · ms13983849
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

Catchdoms Security API vs SiteIntel: common questions

Which is more reliable, Catchdoms Security API or SiteIntel?

Both are neck-and-neck — Catchdoms Security API 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, Catchdoms Security API or SiteIntel?

Catchdoms Security API has the lower median latency in our checks — Catchdoms Security API responds in 437 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 Catchdoms Security API and SiteIntel need an API key?

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

Can I call Catchdoms Security API and SiteIntel from the browser?

Neither sends browser-friendly CORS headers reliably, so call Catchdoms Security API 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 Catchdoms Security API and SiteIntel free for commercial use?

Catchdoms Security API 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.