Alt Tag Definition

alt tag definition

What is an Alt Tag?

Alt tag definition: alt tag refers to a piece of HTML code used to provide information about the content of an image.

Alt tags are used in marketing to help search engine crawlers – like those used by Google – to interpret a website’s visual assets.

For example, if you were adding this following image to a website:

You could provide context to the image by adding alt tags such as:

  • Countryside river with a hilly backdrop
  • Calm river with green embankments
  • German countryside with a central river

Alt tags can easily be added using content management systems like WordPress.


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