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FilterLists vs VulDB

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

APIFilterListsHEALTHY94VulDBHEALTHY95
Uptime · 30d
Uptime · 90d97.2%98.9%
Uptime · 30d94.8%100%
P50 · ms303283
P95 · ms22621051
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no key requiredFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

FilterLists vs VulDB: common questions

Which is more reliable, FilterLists or VulDB?

On our scheduled checks, VulDB leads on measured uptime — FilterLists at 97.2% versus VulDB at 98.9% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, FilterLists or VulDB?

VulDB has the lower median latency in our checks — FilterLists responds in 303 ms versus VulDB at 283 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 FilterLists and VulDB need an API key?

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

Can I call FilterLists and VulDB from the browser?

Only VulDB is browser-friendly — it returns CORS headers over HTTPS. FilterLists needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are FilterLists and VulDB free for commercial use?

FilterLists has unclear commercial terms, and VulDB 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.