CertSonar monitors your SSL certificates, domain registrations, and DNS records around the clock. Get email, push, webhook, or Slack alerts 30, 14, and 7 days before anything expires, so your clients never see a browser warning or an offline site.
Who it's for: Freelance developers and small agencies managing 3 60 client websites.

The problem: An expired SSL certificate shows a full-page browser warning. An expired domain gets grabbed by squatters. A DNS change can silently redirect visitors to phishing pages. You find out when a client calls you angry.

The solution: Add your domains, we check SSL, WHOIS, and DNS every 2 6 hours. You get alerts before anything breaks.

Key features: