MatrixAdapt | Logiciel de gestion d'Entreprise, Création et référencement des sites web

Google image search only gets a half a percent of Google’s overall traffic. But due to blend search results, images actually get a lot more traffic than that half a percent.
Here’s how you can make your images search engine friendly:

Alt tags & descriptions

Here is how the full image code should look like:

<img alt="usa city" border="0" src="http://www.matrixar.com/-ARsDSf1xe2k/UM_baLGRDsI/AAAAAAAAEZI/MS2cz6jGaG8/s1600/usa_city.jpg" height="240" title="USA City" width="320" />

The key to creating good alt tags are:
Describe the image, don’t just stuff in keywords. It should be keyword rich. It needs to be short and to the point.

File name

Using the same USA City example, you want your image file name to be descriptive of what the image is about. And because there are billions of images out there, you don’t want to use a generic image file name like “usa_city.jpg”.

File size

There are 2 aspects to an images file size. The first is the dimensions of the image and the second is how much storage space the image requires.

When optimizing an image, you ideally want the dimensions to be as big as possible, yet you want the storage space to be as small as possible. Through programs like PICASA, you can adjust the dimensions, while keeping the storage size small through compression.

Best of all, programs like PICASA will help maintain the quality of the image as you don’t want to compress them so much that the image doesn’t look good anymore.