Bandwidth is the quantity of information accessed during website viewing. Data are transmitted every time a user views a website, and a bandwidth measurement is taken. Images, audio files, and video files are usually larger than text in bandwidth. That means that if you have a website with greater weight compared to somebody with a simple text-only site or someone with just a few low-resolution images, for example, if you have many videos or streaming audio. Certain web hosts have unlimited bandwidth and a cap is on them.