Port 80 is the default port for HTTP traffic on the internet. This means that when you visit a website, your computer will send a request to the website’s server on port 80. If the server is listening on port 80, it will respond to your request and send you the website’s content.
There are a few reasons why you might want to check what is using port 80 on your computer. First, if you are having trouble connecting to a website, it is possible that something is blocking port 80 on your computer. Second, if you are concerned about security, you may want to check what is using port 80 to make sure that there are no unauthorized programs or services running on your computer.