define Alt Text

Definition:

The text that appears in place, when and where an image cannot be displayed.

Image ALT tags are useful to your page’s visitors. Equally as important, they can help with your search engine rankings by increasing the keyword density (if you use your keywords in your ALT tags).

Example: <img src=”picture_logo.jpg” width=”156″ height=”175″ ALT=”Four historically significant baseball bats”>