One of the most common concerns people have when deciding to host a web site is figuring out how much bandwidth they'll need. Get too little bandwidth and you might be hit with overage fees or have your web site shut off altogether.

Every time someone views a web page or downloads a file, bandwidth - also known as data transfer - is used. How much is used depends on the size of the page or file that is being viewed or downloaded. Essentially, the amount of bandwidth that your web site will need depends on two key factors: (1) Web site content and file size (2) Web site traffic/popularity. Let's look at a few web site examples to get an idea of what their bandwidth requirements might be, and why.

While we're on the topic of daily bandwidth limits, I'd also like to point out that if you're hosting with a free host - such as Yahoo! Geocities - prepare for bandwidth limitations of just 3-5 megabytes per day. This means that you won't be hosting any video clips or large downloads for long. I once had a web site hosted with Geocities that consisted of just one page - one single page. The page was filled with tons of sports car images both big and small. Once my site started to get 100 visitors per day, even that amount of traffic caused me to exceed my daily bandwidth limit. As a result, my site was shut down almost every day, for a period of several months, due to continually exceeding my daily bandwidth limit.

The point I am trying to make with this article is that with proper preparation and web site design, you can ensure that you always have enough bandwidth to go around. Here are a few tips to keep in mind:

1) When building a new web site, try to make the pages as small (file size) as possible. There are many free tools out there that will tell you the size of your pages and can also compress them to make them more compact.

2) When using images on your web site, try not to go crazy - keep the number of images to a minimum. If you must use tons of images, try a .jpeg or .gif compression tool to make the images as small as possible.

3) Make a concerted effort not to offer too many files for download. If for some reason you feel that you need to offer hundreds of downloadable files, try to select ones that are small (1-2 megs) in size.

By following the tips above, you'll be able to more accurately predict your bandwidth needs based on your web site content and estimated traffic. Obviously these tips are only general guidelines - the true test is launching your web site and carefully observing and monitoring your bandwidth usage patterns for several months. Inevitably you may need to alter your web site layout/content from time to time to stay within your monthly bandwidth limits. Better yet, if your site becomes so popular that you really do need more bandwidth, simply order more bandwidth from your existing web host or switch to a host that provides more generous monthly data transfer. As your web site grows in size and popularity, sufficient bandwidth will always be a concern, but, such is the price of success!

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