Never Let Your SSL Certificates Expire
Monitor SSL certificates and domain expiration dates across all your websites. Get email alerts before they expire. Avoid costly downtime.
Cloud-hosted monitoring - no setup required!
No signup required • SSL checker, TLS analyzer & CT scanner
Everything You Need to Stay Protected
Professional SSL monitoring for developers, agencies, and enterprises
SSL Monitoring
Automatically check SSL certificate validity and expiration dates for all your domains.
Smart Alerts
Receive email notifications days before certificates expire. Webhook integrations available.
Domain Tracking
Monitor domain registration expiry with built-in WHOIS lookup. Keep your domains safe.
Desktop App
Native app for Windows, macOS, and Linux. System tray integration for real-time monitoring.
Dashboard
Visual overview of all your certificates. Charts, statistics, and health metrics at a glance.
Export & Import
Backup your domain list. Export reports for compliance. Import domains in bulk.
Intelligent Security Insights
Get AI-powered analysis of your SSL certificates, threat assessments, compliance checks, and executive summaries.
Important: AI Facilities Not Included
SSL Guardian Pro uses a BYOK (Bring Your Own Key) model for AI features. You must provide your own API key from OpenAI, Anthropic, Groq, or use a local Ollama instance. Your API key is stored locally and never sent to our servers.
Why BYOK? You pay AI providers directly, giving you full control over costs and usage. We never see your API key or analysis data.
Certificate Analysis
AI-powered insights on certificate security, trustworthiness, and recommendations
Threat Assessment
Intelligent analysis of Certificate Transparency findings and potential security threats
Compliance Checks
Evaluate against PCI DSS, HIPAA, SOC 2, NIST, and OWASP standards
Executive Summaries
Generate business-friendly security reports for C-level executives
Save on AI Costs with LLM Cost Optimizer
Use LLM Cost Optimizer to automatically select the cheapest AI model for each request. It routes your requests to the most cost-effective provider (OpenAI, Anthropic, Groq) based on your needs, saving you up to 80% on AI costs.
Learn MoreCheck Intervals by Plan
Ready to Protect Your Websites?
Use our free online tools instantly, or upgrade for advanced monitoring with alerts starting at £7.99/month.