Start DNS & Subdomain Monitoring

You’d be surprised how many forgotten subdomains are hiding in your DNS — old test environments, abandoned campaign pages, expired third-party integrations. Each one is a potential takeover target. DNSVigil discovers every subdomain tied to your domain, monitors your DNS records for changes and misconfigurations, and alerts you before problems turn into security incidents. Enter your domain below to receive your first DNS health report within 24 hours. Free to start, no credit card required.

Start DNS & Subdomain Monitoring

Monitor your domain's DNS health and discover all subdomains

Enter your domain without http:// or https://
We'll send monitoring reports to this email
Used for personalizing your security reports. Not shared publicly.

What You Get:

✓ 10 DNS Health Checks - Resolution, MX, SPF, DMARC, DKIM, CAA, DNSSEC, and more

✓ Subdomain Discovery - Find all subdomains including forgotten ones

✓ Takeover Detection - Prevent subdomain takeover attacks

✓ Daily Monitoring - Automated checks every 24 hours

✓ Instant Alerts - Immediate notification of critical issues

✓ Health Score - 0-100 score with detailed breakdown

By submitting this form, you agree to receive monitoring reports via email. We respect your privacy and never share your information.