A full delivery breakdown in seconds: DNS, connection and TLS time, time to first byte, page weight, compression, caching and protocol support — with plain-English fixes for anything slowing you down. Free, no sign-up.
Sites get slower quietly — an unoptimised image here, a third-party script there, a caching header lost in a deploy. An UpConduit account watches your delivery performance continuously from seven regions on five continents, keeps the history so you can see the drift, and alerts you when something real breaks: uncompressed assets, a slow origin, an expiring certificate, or your site going down entirely. Free covers 10 monitors and 3 speed tests a day; Pro raises that to 50 monitors and 50 tests, and adds SMS alerts.
Start monitoring freeDelivery, not rendering. We measure DNS resolution, TCP connection, TLS handshake, time to first byte, and download time on a cold connection, then read your HTML to find the scripts, stylesheets and images it references and sample those for size, compression and caching. We deliberately do not claim Core Web Vitals such as Largest Contentful Paint — those need a real browser engine, and any tool reporting them from a simple fetch is guessing.
Google's guidance is under 800ms is good and over 1.8s is poor. It covers your server's processing time plus the network distance to the visitor, which is why the same site can be fast for you and slow for someone on another continent.
So the tool can't be pointed at someone else's website as a way of generating traffic against it. Signing in raises the limit: free accounts get 3 tests a day and Pro gets 50, and every plan can put a site under continuous speed monitoring rather than testing it by hand.