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OkSurf vs The Guardian

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

APIOkSurfNEW—The GuardianNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree developer key — registration required
Rate limitUnpublished5000 calls/day (developer tier)
In directory since2026-07-052026-07-05
operationalpartialdownno data

OkSurf vs The Guardian: common questions

Which is more reliable, OkSurf or The Guardian?

On our scheduled checks, The Guardian leads on measured uptime — OkSurf at —% versus The Guardian 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 OkSurf and The Guardian need an API key?

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

Can I call OkSurf and The Guardian from the browser?

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

Are OkSurf and The Guardian free for commercial use?

OkSurf has unclear commercial terms, and The Guardian 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.