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scrapestack vs SEO Score

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

APIscrapestackHEALTHY96SEO ScoreHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms346634
P95 · ms8441704
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

scrapestack vs SEO Score: common questions

Which is more reliable, scrapestack or SEO Score?

Both are neck-and-neck — scrapestack 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, scrapestack or SEO Score?

scrapestack has the lower median latency in our checks — scrapestack responds in 346 ms versus SEO Score at 634 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 scrapestack and SEO Score need an API key?

Both ask you to authenticate — scrapestack 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 scrapestack and SEO Score from the browser?

Neither sends browser-friendly CORS headers reliably, so call scrapestack 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 scrapestack and SEO Score free for commercial use?

scrapestack 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.