Step 1:

Click the "Start" button

Windows Start Button

Step 2:

Type "cmd" in the search box

Windows Start Menu

Step 3:

The program "cmd.exe" should now appear, select it

Command Prompt

Step 4:

The Microsoft Command Prompt will now open

Command Prompt

Step 5:

Type "ping {domain name}" and press enter, eg "ping cwcs.co.uk"

Ping