CNET dug into the latest speed test data to see how the country’s largest cable internet provider fared in national speed ...

Comcast Internet Service has Flex 4K streaming and hotspot services. Find the right speed of service for your home by answering a few simple questions to have Comcast match you with the right plan.

You do not have to be an Xfinity internet customer, either; the software is available to everyone. An internet speed test is a program that measures the speed and quality of your internet connection.