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SSL/TLS Security

SSL Certificate Expiry: Crucial Steps to Take Before It Expires

Written by Mangudai Security Team
Published: June 20, 2026
Updated: August 4, 2026

SSL Certificate Expiry: Crucial Steps to Take Before It Expires

An expired SSL/TLS certificate is one of the most common and avoidable causes of website downtime and security warnings. When an SSL certificate expires, browsers block access to your site with a scary warning: "Your connection is not private."

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The Business & Security Impact of Expired SSL

  • Downtime and Financial Loss: E-commerce sales stop instantly when checkout pages trigger certificate warnings.
  • Brand Trust Degradation: Ziyaretçiler siteyi güvenilmez bulup hızlıca terk eder.
  • Man-in-the-Middle (MitM) Risks: Expired certificates force users to bypass warnings, leaving them susceptible to traffic interception.

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Crucial Steps to Take Before Expiry

1. Map Your Certificate Footprint: Determine every domain and subdomain running HTTPS. 2. Automate Renewals: Use tools like Let's Encrypt with automated scripts (Certbot) to auto-renew every 90 days. 3. Monitor Expiration Dates: Set up external scanners to warn you 30, 14, and 7 days prior to expiry.

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Keep Track of SSL Certificates with Mangudai

Mangudai constantly evaluates your SSL/TLS configurations. If a certificate is within 30 days of expiration or runs outdated versions (like TLS 1.0 or 1.1), you receive instant email or Slack notifications.

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