Website Accessibility Evaluation
evaluates every page of your website to
identify images that are missing ALT tags.
image on your website should contain an ALT
tag. This is the single most important way to increase
website accessibility and usability.
on your site do not contain ALT tags, the 66%
of all web users who access the Internet through
dial-up connections might be unable to navigate your site.
Many of these low-bandwidth users surf with images disabled as a
way of retrieving pages more quickly. HTML protocols known as ALT
tags assist these visitors in understanding and navigating
through images, navigation bars and menus on your site.
if your website does not employ ALT tags, you could be turning
away the growing
number of users who access the Internet through
cell phones and PDAs--devices that do not offer full graphic
support and rely upon ALT tags to assist navigation.
your site could be inaccessible
to the estimated 10% of all web
users that the National Institute on Disability
and Rehabilitation Research identifies
as disabled. Visually disabled
web surfers navigate the Internet by using
screen readers, which
depend upon ALT tags to interpret images.
Beyond the ethical considerations, there
are good business reasons for making websites
accessible to people with disabilities.
Over 19% of the population (about 52.6
million Americans) live with some level
of disability, including 8 million who
are visually impaired. Together, America's
disabled have over $175 billion in disposable
income, according to an IBM
study. Those numbers add
up to too big an audience to ignore or
alienate through a failure to include
ALT tags for your images.
tags may increase your rankings on important web crawling search
engines. Google, Alta Vista, Lycos and InfoSeek index ALT tags.