Most people visit a webpage and look at the pictures. But two kinds of visitors don’t – people who can’t see, and programs from search engines like google. Instead they view something called an “alt” tag, which is the alternative to the image itself.
An alt tag, then, is just a short description of the image itself. It’s useful for both of those visitors, and it isn’t something that is added automatically when you place an image on a website.
So if you want better search engine ranking (good idea), or to make your website accessible to people who can’t see (much better idea), then use your website editing software to add an alt tag to each picture. The nitty gritty will look like this:
HTML image tag without an alt tag:
<img src=”image.gif” height=”40″ />
And here’s one with an alt tag:
<img src=”image.gif” alt=”Great Wall of China” height=”40″ />
But hopefully you’re not still handcoding HTML to design your website.
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