Firewall Alerts

To protect your site, configure alerts to notify you of potential security threats and firewall actions. You can create a webhook and subscribe to the listener URL or use the Vercel Slack app to subscribe to the event.

When Vercel's DDoS Mitigation detects malicious traffic on your site that exceeds 100,000 requests over a 10-minute period, an alert is generated.

To receive notifications from these alerts, use one of the following:

• Create a webhook and subscribe to the URL to receive notifications
  1. Follow the configure a webhook guide to create a webhook with the Attack Detected Firewall Event checked and the specific project(s) you would like to be notified about
  2. Subscribe to the created webhook URL
• Use the Vercel Slack app to enable notifications for Attack Detected Firewall Events
  1. Add the Slack app for your team by following the Use the Vercel Slack app guide
  2. Then subscribe to DDoS attack alerts for your team_id
     • Use the command /vercel subscribe {team_id} firewall.attack
  3. Review the Vercel Slack app command reference for additional options.