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Optimizing Design: Bandwidth : Page 4

Incorporate an understanding of your audience's bandwidth reality into your overall design.


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Perceived Bandwidth

A site is only as fast as your readers believe it is.

You can create two pages, each with the same approximate size and load time, and yet the viewer will get the impression that one loaded faster than the other. The actual bandwidth doesn't matter—it is the perceived bandwidth that counts. Perception creates reality so if a viewer thinks your site is fast, then your site is fast.



If you use large images or imagemaps, try slicing your graphics into pieces. While it will take the same amount of time to transfer the entire graphic, the viewer sees the different pieces coming in at once and perceives it as coming in faster.

Always specify the dimensions of your graphics using the height and width attributes in the image tag. The browser will reserve the correct size slot for the graphic, and flow the text around it. The viewer thinks the page is faster because they can read the text while the graphics are loading.



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