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Flexible server monitoring

Introducing Simon 5!

Simon version 5 is now available. It is a massive update, introducing a much-requested feature: syncing the Simon data between multiple Macs, plus a Simon Status service, a Link Checker filter, improved Find filter, iMessage and Speak Error notifiers, a new app icon, and much more.

Important: please note that Simon 5 requires a minimum of macOS 10.12 (Sierra), and is a paid upgrade from Simon 4. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).

Read the Simon What's New page for details.

Problems Monitoring a URL on


Your application looks like it will be perfect for me (I will buy it once I get these two sites working). Basically I want to monitor a particular URL on and for jobs that get posted. What I've found is that with I get a false positive every check because it appears a cookie is changing. Is there any way around this?

David Sinclair's picture

Re: Problems Monitoring a URL on

It wouldn't be a cookie changing that would trigger that. It's more likely dynamic content, e.g. banner ads and similar features.

This is exactly why the Smart Change Detection feature was created. You can set some start and end text to look for, and Simon will only detect a change if the content between those two changes. This way, you can ignore parts of the page that dynamically change.