Last time I checked, the price separator that other monitoring sites used -- in particular between free and paid accounts -- is frequency of checks. E.g., free

Last time I checked, the price separator that other monitoring sites used -- in particular between free and paid accounts -- is frequency of checks. E.g., free accounts include checks every half hour (or 15 min), and paid accounts could be as often as every 30 seconds. With that in mind, the frequency of checks (or: "how long will my site be down before you tell me?") is an important thing to mention; I couldn't find that info, scanning through. The pale grey text costs some effort to read, as well, so I'd also suggest increasing the contrast there. Looks like a good site, and simple, though it may prove a bit too easy for the major existing monitoring sites to copy your distinguishing feature. Good luck!