There are so many ways to test your internet speed at home the most popular and being used by many is by going into this website
http://www.speedtest.net/. You can utilize your IOS or Android smartphone by just downloading the 'Speedtest' app.
The other option is by checking ethernet on Windows. You can do this by doing the following procedures:
1. Make sure that your computer is connected to your router by using an ethernet cable.
2. Click the 'Start' button located at the lower left side corner of your Windows screen.
3. Select the 'Settings' button.
4. Select 'Network and Internet'.
5. Select 'Ethernet'.
6. After, selecting 'Ethernet', click on 'Change adapter options'.
7. Double click on your 'Ethernet' connection
8. Look for the "Speed" value near the bottom of the "Connections" section of information on the Ethernet Status window. The number with the label "Mbps" represents the speed of the connection between your computer and the router.