Also known as broadband, high-speed Internet is offered in four different forms: DSL (Digital Subscriber Line); Satellite Internet; Cable Internet. We researched the biggest ISPs to find the best DSL internet service. We compared price, max speed, and data caps to make our choice. The most common types of Internet are DSL, cable, and fiber. activities, see our bandwidth calculator or our guide to how much Internet speed you need. They're one of the many technologies used to bring an Internet connection and "Fast speed" according to some DSL providers is only Mbps (megabits per. Because cable modem speeds fluctuate, it is difficult to gauge an exact download speed. On the upload stream, however, cable and DSL are. Slower than cable internet service historically, DSL speed is increasing as technology improves and network infrastructure upgrades. upload-speed-asymmetry. DSL, cable, and fiber connections need to be divided into different streams for download and upload, and since they. When shopping for high-speed internet, you'll likely come across these three types: digital subscriber line, known as DSL, cable and fiber optic. If you've found that your download speed is great, but your upload speed is abysmal, I've got a possible solution for you. I struggled with this. Accurately measure the speed of your internet connection using Speedtest from afcef.org Find out now how fast your PC and mobile connections are!.