When building real-world web applications, we should always try to use HTTPS, instead of HTTP. If we try to execute https://qnatime.net, we will get the following response:

Whereas, executing https://www.qnatime.net will give us the following:

This is because we do not have a valid certificate, which can be verified by clicking on the Not Secure message:

We will look at how to create and import a valid certificate to fix this error in the next recipe.