About CertNotify

Making SSL certificate monitoring accessible for every developer and team — not just enterprise security departments.

Our Mission

SSL certificate expiry is one of the most preventable causes of website downtime. Despite this, expired certificates cause outages for organizations of every size — from solo developers to large enterprises. The root cause is almost always the same: nobody was watching.

CertNotify was built to be the monitoring layer that teams were missing. Our platform continuously checks your SSL certificates, domain registrations, TLS configurations, DNS health, and security headers — then alerts you through whatever channel you actually check, whether that's email or WhatsApp.

We believe that certificate monitoring should not require a dedicated security team or expensive enterprise software. CertNotify is built to be simple enough for a solo developer, powerful enough for a security-conscious engineering team.

Focused
We do one thing exceptionally well: monitor your certificates and domains and tell you before problems occur.
Global Coverage
Checks run from multiple regions to detect geo-specific issues and provide accurate, worldwide results.
Privacy by Design
We never store certificate private keys or sensitive data. We only track the metadata you need for monitoring.
Indie-Built
CertNotify is an independently built product — no VC funding, no surveillance capitalism. We answer to our users.

What We Monitor

  • SSL/TLS certificate validity and expiry (with multi-day advance alerts)
  • Domain registration expiry via WHOIS
  • TLS version and cipher suite quality
  • DNS record health and DNSSEC validation
  • HTTP security header presence and configuration
  • Mixed content detection on HTTPS pages

Have a question or feedback?

We read every message. Reach out and we will get back to you within 24 hours on business days.

Contact Us