Click on your username.

Click on the "Settings" option.

Click on the "API Keys" tab.

Click on the Google PageSpeed icon.

Click on the Google PageSpeed link.

Navigate to the "Get Started" section.

Click on the "Get a Key" button.

Enter a project name.

Click "Yes" to agree to the terms.

Click on the "Next" button.

Wait for the API Key to be generated.

Click on the "Show Key" button.

Copy the API Key.

Go back to you Xagio Cloud App tab.

Paste the API Key into the field.

Click on the "Save Changes" button.

Navigate to the "Websites" tab.

Click on the "PageSpeed" button for one of your sites.

Wait while the speed performance is analyzed.

View the PageSpeed metrics.