Some visitors may have difficulties with visual information: People who are blind, have low vision or have difficulty processing visual information, cannot see your site content well or even at all. These people may rely on other methods such as alt text for images or heading tags to understand what's on your site.

Some visitors may have motor difficulties: People with physical disabilities may not be able to use a mouse or touchpad, and instead may rely on the keyboard and other assistive technologies. It is important to make sure that they can navigate around and interact with your site using them.

Some visitors may have difficulties with audio information: People who are deaf, hard of hearing or have difficulty processing auditory information, cannot rely on audio. Instead, they may rely heavily on visual and textual information such as transcripts and captions, or even sign language.