- Data transfer is a measure of traffic and resources on a website. Every time someone visits a website or downloads a picture, the person is using that website's data transfer. The amount of data transfer used varies from website to website and is dependent on many factors, including size of images or videos, size of the website, etc.
- Bandwidth is the measure of how much data can be transferred at a time. The more or higher the bandwidth, the more data can run through a system and the faster the data can be transferred.
- In the web-hosting industry, it is common to see "unlimited bandwidth" or "unmetered data transfer" listed in a hosting plan. These selling points are false, as no web host can offer unlimited or unmetered bandwidth or data transfer. There is a cost associated with purchasing that much bandwidth for every website running on their servers.
- If you are wondering how much data transfer you will need to run a website, consider this equation: [website visitors] X [page size] X [page views] X [30 days] = [average monthly data transfer]. Your answer will most likely be in KB (kilobytes), but if you move the decimal over six places to the left, you'll get your answer in GB (gigabytes).
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