Operating a home server on port 80 can be problematic primarily due to security concerns. Port 80 is typically used for HTTP, which does not encrypt data being transmitted between the client and the server. This lack of encryption makes it easier for malicious actors to intercept and view sensitive information such as passwords, personal data, or other confidential information being transferred in plain text over the network.

Using HTTPS instead, which typically operates over port 443, provides a much more secure alternative. HTTPS leverages TLS (Transport Layer Security) to encrypt the data flow between the client and your server, significantly reducing the risk of data being intercepted or tampered with by hackers. Besides security, using HTTPS can improve your site’s credibility and trustworthiness among users, as most modern browsers warn users when a website they are visiting is not secure.

To make the switch to HTTPS, you would need to obtain an SSL/TLS certificate for your domain. This certificate serves as a proof of identity for your site, and there are many options available, ranging from free services like Let’s Encrypt to paid options that may offer additional features or warranties. Once you have obtained and installed the certificate, you should configure your server to redirect all HTTP requests to HTTPS and ensure that your web application’s links and resources are loading over HTTPS as well.

Ultimately, moving to HTTPS is a critical step in maintaining a secure and trustworthy online presence, and it is strongly recommended you make this transition to protect both your data and that of your users.