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IP Proxy Detection vs Microsoft Security Response Center (MSRC)

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

APIIP Proxy DetectionHEALTHY96Microsoft Security Response Center (MSRC)HEALTHY92
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms323538
P95 · ms7061107
Authnonenone
CORSnono
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IP Proxy Detection vs Microsoft Security Response Center (MSRC): common questions

Which is more reliable, IP Proxy Detection or Microsoft Security Response Center (MSRC)?

Both are neck-and-neck — IP Proxy Detection and Microsoft Security Response Center (MSRC) 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, IP Proxy Detection or Microsoft Security Response Center (MSRC)?

IP Proxy Detection has the lower median latency in our checks — IP Proxy Detection responds in 323 ms versus Microsoft Security Response Center (MSRC) at 538 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 IP Proxy Detection and Microsoft Security Response Center (MSRC) need an API key?

Neither needs a paid key — IP Proxy Detection is callable with no signup, and Microsoft Security Response Center (MSRC) is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call IP Proxy Detection and Microsoft Security Response Center (MSRC) from the browser?

Neither sends browser-friendly CORS headers reliably, so call IP Proxy Detection and Microsoft Security Response Center (MSRC) from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are IP Proxy Detection and Microsoft Security Response Center (MSRC) free for commercial use?

IP Proxy Detection has unclear commercial terms, and Microsoft Security Response Center (MSRC) 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.