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ItsThisForThat vs SEO Score

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

APIItsThisForThatNEW—SEO ScoreNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublished (docs ask you not to hammer it)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ItsThisForThat vs SEO Score: common questions

Which is more reliable, ItsThisForThat or SEO Score?

On our scheduled checks, SEO Score leads on measured uptime — ItsThisForThat at —% versus SEO Score 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 ItsThisForThat and SEO Score need an API key?

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

Can I call ItsThisForThat and SEO Score from the browser?

Neither sends browser-friendly CORS headers reliably, so call ItsThisForThat and SEO Score from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are ItsThisForThat and SEO Score free for commercial use?

ItsThisForThat 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.