As you know, search engines are able to index the image files too and there are many cases that searchers need to find a photo about what they look for. So they go to the image search of search engines, find the related images, click on them and go to the related websites. This means free traffic for bloggers and webmasters.
Why should you ignore the traffic that you can receive for free? It is very easy to optimize the images for search engines and receive traffic through them.
Search engines can not see the images in the way that we see, but they can find the image files and index their URLs using the the keywords/phrases they find in the:
1. URL of the image files.
2. title and description of the page that the image file is posted on.
3. texts and words around the image.
4. alt and title text of the image.
Which of these four factors are important for the image optimization?
The keywords/phrases placed in the image URL and alt/title text are very important. If you like your website/weblog images to be ranked in the image search of search engines like Google, you should:
1. Insert the keyword/phrase that the image is related to it, in the image file name. For example, when you have an image about printer cartridge, name the image file using the related keywords/phrases: hp-printer-black-cartridge.jpg or printer-cartridge.jpg
2. Insert the keyword/phrase in the alt and title texts:
<img title=”hp printer black cartridge” alt=”hp printer black cartridge”>
Please note that the alt and title texts have to be the same.
Alt or title text is the text that is appeared when you over your mouse pointer on an image. This text becomes more important when blind users visit your web pages because they can not see the images but the reader software they use reads the alt/title text for them. So never post an image to your web pages without adding the proper alt/title text.
3. Try to well optimize the page and use the proper keywords/phrases in the page title, description and also body.
4. If the image is linked to another page or file, try the target page to have the related keywords/phrases.
5. If you have more than one image on a page, try not to optimize all of them for the same keyword/phrase because this is a kind of over-optimization. All the images need alt/title text, but do not use the same alt text and keywords/phrases for all of them.
As you see, it is very easy to optimize the images for the search engines. If you follow the above instructions for all the images you have on your website and of course avoid over-optimization, you will receive a lot of free traffic through the images you have on your website pages.