Optimizing Website Server Bandwidth - Estimating Website Bandwidth Requirements
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Before optimizing your website's bandwidth, it is recommended that you first compute your “estimated true” bandwidth requirement for your website. If this “estimated true bandwidth” is way too low compared to what is actually reported by your hosting company, then some undesired factors are seriously eating up your bandwidth (like bots downloading large files, or lots of websites doing unauthorized “hot linking” to your content).
The formula for computing bandwidth is:
Estimated true bandwidth= [(Average Daily Visitors x Average Page Views x Average Page Size) + (Average Daily File Downloads x Average File Size)] x 31 x Fudge Factor
Where the following values hold:
Average daily visitors = number of visitors going to your website daily. You can get this data from Google analytics.
Average page views = on average, the number of pages that a visitor will view when they visit your website.
Average page size = average size of your web pages in kilobytes.
Average Daily file downloads = only applies if you offer downloads, but this is the average number in a daily basis.
Average file size = the average size in kB for every downloadable item.
Fudge factor= some safety factor; the recommended amount is around 1.5.
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