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Domain Intelligence vs FilterLists

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

APIDomain IntelligenceUNMONITORED—FilterListsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Domain Intelligence vs FilterLists: common questions

Which is more reliable, Domain Intelligence or FilterLists?

Only FilterLists is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do Domain Intelligence and FilterLists need an API key?

FilterLists needs no key, while Domain Intelligence requires a free API key. If you want to start calling without signup, reach for FilterLists first.

Can I call Domain Intelligence and FilterLists from the browser?

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

Are Domain Intelligence and FilterLists free for commercial use?

Domain Intelligence has unclear commercial terms, and FilterLists 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.