What Happens When an SSL Certificate Expires?
· Guide
The moment an SSL certificate expires, browsers show visitors a full-screen warning: "Your connection is not private." Most users abandon the site immediately.
Why It's Critical
User loss: Studies show 85%+ of users leave when they see a security warning. Revenue loss: E-commerce payment pages become inaccessible — every hour counts. SEO damage: Google Search Console reports certificate errors; indexing slows and rankings drop. Reputation: Customers view an expired certificate as serious negligence.
Why It Happens
Neglected tracking, missing automated renewal, one certificate overlooked among many, or tracking lost after a server migration.
Prevention
Calendar reminders at 60, 30, and 14 days before expiry. Automated monitoring tools (UptimeRobot, StatusCake, Datadog) track expiry dates and send alerts. Let's Encrypt users: Certbot handles auto-renewal — but periodically verify it's actually working. PekiSSL renewal notifications remove the burden of manual tracking.
If Already Expired
Start renewal immediately (CSR → CA submission → validation). Install new certificate. Restart the web server. Verify with SSL Labs. For emergencies, DV certificates can be issued in minutes.
Visit the PekiSSL product page to find the right certificate for your needs.