This tool is used for comparing versions of a website to see what changed. Perhaps you are a developer and your changes messed up your margins but you can’t see where. This tool will identify the changes, so you can make your fixes easily.

1. Enter the URL of the website that you want to compare. For example the URL of your production site.
2. Enter the URL of the website that features your changes. For example your development site. 
3. Select your device.
4. Enter delay time in seconds if your websites take time to load. 
5. Choose your capture option.