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Catchdoms Security API vs SiteIntel

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

APICatchdoms Security APINEW—SiteIntelNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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?

On our scheduled checks, SiteIntel leads on measured uptime — Catchdoms Security API at —% versus SiteIntel 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 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.