The High Cost of Expired SSL Certificates
When an SSL certificate expires, modern browsers immediately block access to the site with a terrifying red warning screen. For your users, this translates to "This website has been hacked" or "Your credit card will be stolen."
An expired SSL certificate causes an immediate 100% bounce rate for new visitors, halts all e-commerce transactions, and triggers search engines to temporarily drop your rankings.
Diagnosing SSL Chain Errors
Sometimes your certificate is perfectly valid, but some users still see errors. This is usually caused by an incomplete certificate chain. When installing an SSL certificate, you must include intermediate certificates so browsers can trace the signature back to a trusted root authority.
Watchling's SSL monitor explicitly checks for complete trust chains, ensuring your certificate is valid for all users, on all devices.
SSL Monitoring Best Practices
Don't rely on calendar reminders. Follow this checklist to ensure your site never goes down due to an expired certificate:
Use tools like Certbot to automatically renew certificates 30 days before they expire.
Use an external service like Watchling to independently verify your SSL expiration date daily. If automation fails, you'll still be alerted.
Ensure your server's firewall explicitly allows traffic on Port 443 (HTTPS).
Never Let an SSL Certificate Expire Again
Watchling monitors your SSL certificates daily and alerts you 14 days before expiration. Set it up once and rest easy.
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