Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.


Do images have good alt text?

Why it’s important: Carmen’s page didn’t load all the way and didn’t get to download the images.

View more

Amanda is blind and has to read the alt text to understand the contents of the image.

John is looking for information with a search engine and needs help being directed to the right content (descriptive alt tags will improve search).

Steps to take

  • Include meaningful information describing each image in the alt text.
  • Use null (empty) alt text when text describing the image is already on the page (alt="").
  • Don’t start the alt text with Image of or Photo of – the screen reader already announces that images are images.
  • If the image is decorative and you don’t want the screen reader to announce it at all, use null (empty) alt text (alt="") or CSS background images.

WCAG 2.0 references