HTTP encryption is very important. It not only secures the data in transit to prevent eavesdropping, but it also provides authentication. This ensures that users actually connect to the site that they think they are connecting to, and that the page wasn't tampered with. Otherwise, unscrupulous internet connection providers can inject or replace adverts on your site, or they can block internet access until you have opted out of a parental filter. Or there can be worse things, such as stealing your user's data, which you are usually required by law to protect.
There is really no good reason today to not use encryption everywhere. The overheads are tiny, although we will still consider them and show you how to avoid potential issues. ...
