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serpstack vs ipify

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

APIserpstackNEW—ipifyHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedn/a
Free tierFree tier — key may be requiredUnlimited
Rate limitUnpublishedNone
In directory since2026-07-052026-05-02
operationalpartialdownno data

serpstack vs ipify: common questions

Which is more reliable, serpstack or ipify?

On our scheduled checks, ipify leads on measured uptime — serpstack at —% versus ipify 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 serpstack and ipify need an API key?

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

Can I call serpstack and ipify from the browser?

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

Are serpstack and ipify free for commercial use?

serpstack has unclear commercial terms, and ipify allows commercial use on its free tier. 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.