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Cutting down Load Time by Image Optimization

bandwidth-chartEven though more and more Internet users switch to broadband each year, a large portion of the web’s population is still running on good old dialup connections. It is hence unwise to count them out of the equation when you’re designing your website, and a very major consideration we have to make for dialup users is the loading time of your website.

Broadly speaking, all the text on your site will be loaded in a very short time even on a dialup connection. The culprit of slow-loading sites is primarily large images on your website, and it is very crucial to strike a soft balance between using just enough images to attract your users and not to bog down the overall loading time of your site.

You should also go to a greater length and optimize every image on your site to make certain it loads in the least time possible. What I really mean is to use image editing software to remove unnecessary information on your images, and thereby effectively reducing the file size of your image without affecting its appearance.

If you own Photoshop, it will be obvious to you that when you save an image as a JPEG file, a dialog box appears and lets you choose the “quality” of the JPEG image — normally a setting of 8 to 10 is good enough as it will preserve the quality of your image while saving it at a small file size. If you do not have Photoshop, there are many free image compressors online that you are able to download and use to reduce your image’s file size.

On the other hand, you can opt to save your images in PNG format to have the best quality at the least file size. You can also save your images in GIF format — the image editing software clips away all the color information not used in your image, hence giving you the smallest file size possible. However, saving in GIF format will often compromise the visual aspect of your image, so make your choice wisely!

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