ScreenURL vs VATlayer
Same instrument, two spec sheets — measured, not claimed.
ScreenURL vs VATlayer: common questions
Which is more reliable, ScreenURL or VATlayer?
On our scheduled checks, VATlayer leads on measured uptime — ScreenURL at —% versus VATlayer 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 ScreenURL and VATlayer need an API key?
Both ask you to authenticate — ScreenURL uses an API key and VATlayer 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 ScreenURL and VATlayer from the browser?
Neither sends browser-friendly CORS headers reliably, so call ScreenURL and VATlayer from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are ScreenURL and VATlayer free for commercial use?
ScreenURL has unclear commercial terms, and VATlayer 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.