Web Monitor FAQs
From Edge Threat Management Wiki - Arista
Why is there a pass list if Web Monitor can't block sites?
Web Monitor is useful for monitoring web activity, and as part of that it is often useful to flag certain web activity to make it more visible in reports. Adding a site to the pass list will prevent the site from being flagged even if it otherwise would be because the category is flagged or a rule flags it.
Can I block sites with Web Monitor?
No. Web Monitor is for monitoring web activity only. In order to modify or block web content Web Filter is required.