SSL certificate renewal messages remind you to update the security certificate that protects your website.
If you never set one up, it could be:
- Your hosting provider added it automatically (some do this for free).
- A service you use includes it (like Wix or WordPress.com).
- A spam or scam email—be careful before clicking anything!
Check if your website has HTTPS and a padlock in the address bar. If yes, you do have an SSL certificate.