SSL / HTTPS
The padlock in your browser that means the connection is secure.
What is SSL / HTTPS?
SSL encrypts the connection between your visitor's browser and your server. Without it, passwords and card numbers could be intercepted. All modern hosting platforms give you SSL automatically. If your URL starts with https:// — you have it.
If your site shows "Not Secure" in the browser bar, SSL isn't set up — but with modern platforms like Vercel and Cloudflare, this almost never happens.
In Vibe Coding
Vercel, Railway, Cloudflare, and Lovable all provide SSL automatically. You don't need to configure it yourself. If your deployed site somehow shows "Not Secure," check your hosting platform's SSL settings.
Example
For example: A visitor goes to buy something on your site. They see the padlock icon in the browser bar and feel safe entering their credit card. Without SSL, they'd see "Not Secure" and leave.