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SEO Score vs US Autocomplete

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

APISEO ScoreNEW—US AutocompleteREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

SEO Score vs US Autocomplete: common questions

Which is more reliable, SEO Score or US Autocomplete?

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

Both ask you to authenticate — SEO Score uses an API key and US Autocomplete 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 SEO Score and US Autocomplete from the browser?

Only US Autocomplete 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 SEO Score and US Autocomplete free for commercial use?

SEO Score has unclear commercial terms, and US Autocomplete 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.