What SSL/TLS means
An SSL/TLS certificate is what puts the padlock and https in the address bar. Without it, browsers warn visitors that your site is not secure, and form data can be intercepted. Most hosts provide free certificates, but someone needs to confirm they renew automatically.
Why it matters for your website
Browsers flag sites without HTTPS as "Not secure," which scares off visitors, especially on contact and checkout pages. Google has also confirmed HTTPS is a lightweight ranking signal, and encryption protects form data from being read in transit.
Example
A hypothetical bakery's order form sends names and phone numbers over HTTPS, so someone on the same public Wi-Fi cannot read them.
Tips
- Use a certificate that renews automatically so it never quietly expires.
- Redirect every HTTP address to its HTTPS version.
- Fix mixed content by loading all images and scripts over HTTPS.
Common mistakes
- Letting a certificate expire and showing visitors a full-page browser warning.
- Assuming the padlock means the business behind the site is trustworthy.
Questions about SSL/TLS
What is SSL/TLS?
The encryption protocols that secure data moving between a browser and a website; TLS is the modern successor to SSL.
Do I need an SSL certificate if my site does not sell anything?
Yes. Browsers warn on non-HTTPS pages, especially ones with forms, and HTTPS protects any data visitors send. Many hosts include free certificates.
Are free SSL certificates as secure as paid ones?
For encryption, yes. Paid certificates may add extra identity checks, warranties or support, but the protection of data in transit is the same.
