Is your SSL certificate about to expire?
Monitor SSL certificate expiry dates with smart alerts. Never let an expired certificate break your site.
What is an SSL Certificate?
An SSL (TLS) certificate encrypts the connection between your website and its visitors. It's what puts the padlock icon in the browser address bar and enables HTTPS. Without a valid certificate, browsers show a full-page warning that scares visitors away.
Most certificates are issued for 90 days (Let's Encrypt) or up to 1 year (paid CAs). While auto-renewal handles most cases, it can fail silently — a DNS change, a misconfigured server, or a billing issue can prevent renewal without any warning.
SSL Certificate Expiry monitors your certificates and validates the full chain — from leaf to root — so you know about problems before your visitors see a browser warning.
Everything you need to monitor ssl certificate expiry
Get alerts before your SSL certificates expire and break your site.
Check frequency adapts based on proximity to expiry.
Alerts at 30, 14, 7, 3, and 1 day before expiry.
Get more with Site Watcher
Monitor your entire web infrastructure from a single dashboard — uptime, SSL, domains, DNS, and vendor dependencies.
Check your websites every minute from multiple global locations. Track response times and uptime percentages.
Monitor certificate expiry dates with full chain validation. Get escalating alerts before browsers show warnings.
Track domain registration expiry via WHOIS. Escalating alerts at 30, 14, 7, 3, and 1 day before expiry.
Detect unexpected DNS changes across all record types. Hourly checks with diff views and propagation tracking.
Monitor any public status page for incidents. Get alerted when cloud providers and third-party services go down.
Get even more with Site Health
Go beyond infrastructure monitoring. Site Health adds search performance, page speed, technical SEO, and WHOIS tracking to your monitoring suite.
Monitor your search performance and indexing status.
Track LCP, INP, and CLS to keep your site fast.
Get alerted when your robots.txt changes unexpectedly.
Monitor your XML sitemaps for changes and issues.
Track redirect chains and get alerted to new or broken redirects.
Monitor hreflang tags for consistency and errors.
Get alerted when WHOIS records change — registrar, nameservers, or ownership.
Free Check. Free Monitoring. Paid Unlimited.
Check any certificate instantly. Monitor up to 3 certificates free. Go unlimited with Pro.
SSL Certificate Checker
- Certificate expiry date tracking
- Alerts with escalating cadence
- Certificate chain validation
- Issuer and protocol details
SSL Certificate Expiry
- Up to 3 monitored certificates
- Check frequency adapts based on proximity to expiry.
- Email alerts at 30, 14, 7 days
- View 30 days of monitoring history.
SSL Certificate Expiry Pro
- Unlimited monitored certificates
- SSL certificate expiry monitoring
- Escalating alerts (30, 14, 7, 3, 1 day)
- View a full year of monitoring history.
- Import targets in bulk via CSV upload.
- Send alert emails to up to 5 additional recipients.
- Filter, sort, and perform bulk actions on your targets.
Or monitor everything from one dashboard
Site Watcher bundles all 5 monitoring tools — domain expiry, SSL, uptime, DNS, and vendor status — into a single dashboard with unified alerting.
Site Watcher
- Up to 3 monitored targets
- All 5 tools in one dashboard
- Smart check cadence
- Email alerts
- 30-day history
Site Watcher Pro
- Unlimited targets across all tools
- Domain expiry + SSL + Uptime + DNS + Vendor status
- Consolidated alerts
- Roll-up site status
- 1-year history
- Bulk import
Site Health Pro
- Everything in Site Watcher Pro
- Google Search Console integration
- Core Web Vitals monitoring (LCP, INP, CLS)
- Robots.txt change monitoring
- Sitemap change monitoring
- Redirect chain monitoring
- Hreflang monitoring
- WHOIS change monitoring
Start monitoring your SSL certificates
Get alerted before an expired certificate breaks your site.