SSL, DNS & domain monitoring
Know your certificates
will never expire unnoticed
Check any domain's SSL, DNS, WHOIS, email authentication and security headers in seconds — then let CertNotify watch them 24/7 and alert you before anything breaks.
Free to use No signup for scans 20+ tools
Platform Capabilities
Everything Your Security Team Needs
From certificate discovery to real-time alerting — CertNotify covers the full certificate lifecycle.
SSL Certificate Monitoring
Track certificate chain, validity, issuer details and get alerts 30, 14, and 7 days before expiry. Never face an unexpected SSL outage again.
Domain Expiry Tracking
Monitor domain registration expiry with WHOIS data. Get notified before your domain lapses and protect your brand continuity.
TLS Configuration Audit
Detect outdated TLS 1.0/1.1, weak cipher suites, and misconfigured certificates. Get actionable remediation steps instantly.
DNS & DNSSEC Validation
Verify DNS record integrity and DNSSEC implementation. Detect hijacking risks and propagation issues across global resolvers.
Multi-Channel Alerts
Receive alerts via email or WhatsApp. Configure alert schedules so critical issues always reach the right person in time.
Risk Scoring
Every scan is scored on expiry proximity, TLS strength, DNSSEC status, and security header compliance — so you fix the riskiest issue first.
How It Works
Up and Running in 60 Seconds
Add Your Domain
Enter any domain — all TLDs supported. A quick scan takes seconds and needs no signup.
We Scan & Analyse
The engine checks SSL certificates, TLS versions, DNS records, DNSSEC, and security headers in one pass.
Get a Risk Score
Findings are prioritised into a single score with specific remediation steps for each issue.
Stay Alerted
Continuous monitoring with alerts by email and WhatsApp before expiry or configuration drift bites.
Learning Center
SSL & Security Knowledge Base
ERR_SSL_PROTOCOL_ERROR: Causes & Complete Fix Guide
Cloudflare SSL Error 526: Invalid SSL Certificate
Let's Encrypt Renewal Failed? Here's How to Fix It
How to Check TLS Version on Any Server or Browser
SSL Certificate Chain Errors: What They Mean & How to Fix
SSL Handshake Failed: Every Cause and Fix Explained
Why Trust CertNotify
Built for Reliability & Privacy
Real-Time Engine
Sub-3-second checks using a distributed scanning infrastructure.
Multi-Region
Checks run from multiple global locations to detect geo-specific issues.
Privacy-First
We never log certificate contents or store sensitive domain data beyond metadata.
Risk Insights
Every scan is scored against known certificate failure patterns so you can prioritise what to fix first.
Why CertNotify
More Than an Expiry Reminder
Traditional monitoring tells you when something breaks. CertNotify tells you before it does — and why.
| Feature | Traditional Tool | CertNotify |
|---|---|---|
| SSL Expiry Alerts | ||
| TLS Version & Cipher Analysis | ||
| DNS Health Monitoring | ||
| Email Authentication (DMARC/SPF/DKIM) | ||
| Risk Score & Prioritisation | ||
| Security Intelligence Dashboard | ||
| Multi-Channel Alerts (Email + WhatsApp) | ||
| Free Public Tools (No Signup) | ||
| Certificate Transparency Monitoring |
Live Intelligence
Public Security Intelligence Hub
Real-time data on SSL expirations, TLS misconfigurations, and certificate transparency events across the internet.
Certificates expire quietly.
Your monitoring shouldn't be quiet too.
Add your domains once and CertNotify checks them every day — with alerts by email and WhatsApp long before anything reaches a browser warning.