What is SSL? - A Brief Introduction

What is SSL?

SSL is not an alternative to HTTP. Although SSL runs on a different port, 443, SSL can run on any port, just like HTTP. SSL is more like an overlay to HTTP, and can even run on port 80. However, even if you are using SSL, browsers would only say it is SSL if it is on port 443. SSL can be identified by the https:// protocol and the lock in the browser address bar, and is recommended because it gives users confidence in your site knowing that all your data is encrypted, so can’t be intercepted.