Or alternate text refers to the text that is displayed instead of the image. This text is important in the field of search engine optimization (SEO) to also tell Google what is on the image.

In the area of accessibility, it is also recommended to always fill in the alt tag so that screen readers can also explain the content on an image. You can find out more about the use of alt tags and how to use them at “Alt Decision Tree” from the W3C.

Interested in other topics? Here we have a few more suitable explanations.