If your organization frequently adopts new tools, consider relaxing the "Newly Seen Domains" setting or creating a targeted Allow List for specific departments (like your Dev team) while keeping it active for general users.
To an end user, it looks like a barrier. To a security team, it looks like a bullet dodged.
You’ve seen the message: “This website is blocked by Cisco Umbrella.” cisco umbrella blocking websites
We can review and unblock it within the policy guidelines.
Websites are typically blocked based on organizational security settings or content categories: If your organization frequently adopts new tools, consider
Ask the user to send a screenshot of the block page. If they cannot, check the section in the Umbrella dashboard. Look up the domain in question.
A compromised legitimate website. Umbrella sees the hidden malicious script and blocks the entire page to prevent drive-by downloads. You’ve seen the message: “This website is blocked
Troubleshooting Cisco Umbrella Website Blocks (False Positives)
If it's a false positive: