SEO Score vs Vector Express v2.0
Same instrument, two spec sheets — measured, not claimed.
SEO Score vs Vector Express v2.0: common questions
Which is more reliable, SEO Score or Vector Express v2.0?
Both are neck-and-neck — SEO Score and Vector Express v2.0 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, SEO Score or Vector Express v2.0?
Vector Express v2.0 has the lower median latency in our checks — SEO Score responds in 634 ms versus Vector Express v2.0 at 613 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 SEO Score and Vector Express v2.0 need an API key?
Vector Express v2.0 needs no key, while SEO Score requires a free API key. If you want to start calling without signup, reach for Vector Express v2.0 first.
Can I call SEO Score and Vector Express v2.0 from the browser?
Neither sends browser-friendly CORS headers reliably, so call SEO Score and Vector Express v2.0 from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are SEO Score and Vector Express v2.0 free for commercial use?
SEO Score has unclear commercial terms, and Vector Express v2.0 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.