How to check port 443 is open in windows 10? - Open Port

How to check port 443 is open in windows 10?

The easiest answer to the how to check port 443 is open in windows 10 is by using the netstat comman line tool. To do so open the command line and run the following command:

netstat -an | find “443”

If you see something like the below the port is open:

  • 127.0.0.1:443 tag as LISTENING
  • 0.0.0.0:443 tag as LISTENING
  • [::]:443 tag as LISTENING
  • [::1]:443 tag as LISTENING

In the below image the red round is showing that port 443 is open.

How to check port 443 is open in windows 10

How to check port 443 is open in windows 10

What does it mean port 443 is open?

Websites that use a secure connection use the HTTPS protocol for communication, the default port that is used with HTTPS is port 443.

This means that a web server, like Apache or IIS server, opens the 443 port and waiting for clients. We using web browsers, to connect to the site. When we type a domain name our web browser sends a request to open the site, if the site is configured to be secure it will open the site with HTTPS, using port 443, for us.

How to check port 443 is open in windows 10?

Here are some more methods that you can use to check if port 443 is open on your systems, you can try to browse with your web browser to the following URL:

  • https://localhost
  • https://localhost:443

If a page is open and there is no error it means that port 443 is open.

You can also download our Open Port Viewer tool and run it on your system, do not forget to run it as an administrator. It will build a list with the current open ports on your system. It’s like netstat but with UI so you do not need to use the command-line interface.

I do hope that the provided information answer the question if you need more information related to this subject or to computer networks, please use our contact page to ask about it.


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