This is the alternative that that can be assigned to a web graphic.
This tag is suppose to describe the content of the image and mainly
implement as a usability feature by the . Software for the visually
impaired can read aloud the contents of the alt tag thus 'giving the
person an understanding of the visual message being sent.
This tag can be a nice
seo
bonus tag, by using clear and descriptive alt tags the search
engine can find the images. Think about the next scenario:
A user is looking for snowball images at google.com and finds on from
your website.
Google
will then display the image in the context of your page. And
if your page has more images about snowballs and some very interesting
information this user might decide to give your site a try. Be careful
with the alt tag though.
This tag is not meant as a
keyword spamming
agent and search engines will penalize any alt tag spamming
attempts. See this tag merely as what it is, a helpful tool for the
visually impaired, and this category includes the search engines
Google, yahoo, msn!