An SSL certificate encrypts data exchanged between a visitor’s browser and your website. Modern browsers expect HTTPS, and an SSL certificate is a basic part of website security.
What does SSL do?
SSL/TLS helps protect information such as login details and contact form submissions while also helping visitors verify they are connected to the intended website.
Do all websites need SSL?
Yes. Even a simple blog benefits from HTTPS. It protects visitors, avoids browser security warnings, and supports trust. Many hosting providers include a free certificate, but you still need to activate it and ensure HTTP redirects to HTTPS.
SSL checklist
- Install a valid certificate for the correct domain and subdomains.
- Enable HTTPS redirects.
- Update WordPress and site URLs to HTTPS.
- Fix mixed-content warnings from images, scripts, or stylesheets.
- Renew or auto-renew the certificate before expiration.
SSL is not a complete security plan
HTTPS encrypts traffic in transit, but it does not replace strong passwords, updates, backups, malware monitoring, or secure hosting practices.
For more performance advice, read our web hosting guide.