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Catchdoms Security API vs ConvertHub API

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

APICatchdoms Security APINEW—ConvertHub APINEW—
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 — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Catchdoms Security API vs ConvertHub API: common questions

Which is more reliable, Catchdoms Security API or ConvertHub API?

On our scheduled checks, ConvertHub API leads on measured uptime — Catchdoms Security API at —% versus ConvertHub API 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 ConvertHub API need an API key?

Catchdoms Security API needs no key, while ConvertHub API 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 ConvertHub API from the browser?

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

Catchdoms Security API has unclear commercial terms, and ConvertHub API 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.