ScrapingDog vs serpstack
Same instrument, two spec sheets — measured, not claimed.
ScrapingDog vs serpstack: common questions
Which is more reliable, ScrapingDog or serpstack?
On our scheduled checks, ScrapingDog leads on measured uptime — ScrapingDog at 100% versus serpstack at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, ScrapingDog or serpstack?
ScrapingDog has the lower median latency in our checks — ScrapingDog responds in 195 ms versus serpstack at 492 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 ScrapingDog and serpstack need an API key?
Both ask you to authenticate — ScrapingDog uses an API key and serpstack 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 ScrapingDog and serpstack from the browser?
Only ScrapingDog is browser-friendly — it returns CORS headers over HTTPS. serpstack needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are ScrapingDog and serpstack free for commercial use?
ScrapingDog has unclear commercial terms, and serpstack 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.