Accessibility is a term that means very different things to different people. It has a technical connotation for some. For others it has a less technical meaning.

Accessibility can really be defined both ways:

  1. Allowing surfers access to a page
  2. Allowing search bots access to a page
  3. Not limiting some users access to content

For Example:

Blocking bots with a robots.txt file is not SEO friendly. Accessibility designers should always include ALT text on images, never use Flash (really, never!), and opt for HTML navigation instead of JavaScript.