Every time you edit or create a web page, you should test to make sure that page passes the minimum accessibility requirements.
Ask the following questions:
- Does each image have alt text? Does the alt text make sense for the image and/or function of the image?
- Are there any images of text or images that contain text? If so, do you have a good reason to use that image and did you include the text in the alt text?
- Are headings and lists being used correctly?
- Are your links clear by themselves (without the surrounding context)?
- If your page has video or audio content, did you include a transcript and captions?
- If you are using any colors (or images of text) aside from the default colors, did you check for sufficient contrast?
- Are you relying on sensory characteristics (sight, sound, etc.) to describe instructions?
Test your page with WAVE
WAVE is a great accessibility testing tool that will help you identify many accessibility issues. It also provides information about how to fix issues. Go to http://wave.webaim.org and enter your page’s address in the “Web page address” field and press enter. You can also download and install the WAVE Toolbar browser extension for Google or Firefox.