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Poptin API vs SEO Score

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

APIPoptin APIREACHABLE100SEO ScoreHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms698500
P95 · ms17053880
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key required
Rate limit120 req/window · 119 remainingUnpublished
In directory since2026-10-042026-07-05
operationalpartialdownno data

Poptin API vs SEO Score: common questions

Which is more reliable, Poptin API or SEO Score?

Both are neck-and-neck — Poptin API and SEO Score 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, Poptin API or SEO Score?

SEO Score has the lower median latency in our checks — Poptin API responds in 698 ms versus SEO Score at 500 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 Poptin API and SEO Score need an API key?

Both ask you to authenticate — Poptin API uses an API key and SEO Score uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Poptin API and SEO Score from the browser?

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

Are Poptin API and SEO Score free for commercial use?

Poptin API has unclear commercial terms, and SEO Score 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.