WEB1019 - The 'alt' attribute of the <img> or <area> tag contains too many characters

An alt attribute should not exceed 150 characters.

Explanation

Every <img> and <area> tag for an image map should contain an alt attribute that describes the image in 150 characters or fewer.

Make sure that every image has relevant and descriptive alt attribute text that accurately reflects what the image represents.

Details

Consider using keywords that are descriptive and relevant to the image. Excessive alt attribute text may cause search engines to flag the page for review to make sure it doesn't use deceptive techniques to artificially increase its ranking.

For information about customizing the parameters for rules in the SEO Checker, see Customizing SEO rules .

Example

The following is an example of a correctly formatted alt attribute in an <img> tag.

<img src="https://www.proseware.com/images/reader_in_action.png" alt="A computer screen showing the Proseware reader in operation. Image copyright (c) 2009.">

<img src ="menu.gif" width="300" height="120" alt="Planets" usemap="#menumap" />

<map name="menumap">
  <area shape="rect" coords="0,0,99,120" href="index.html" alt="Home" />
  <area shape="rect" coords="100,0,199,120" href="products.htm" alt="Products" />
  <area shape="rect" coords="200,0,300,120" href="about.htm" alt="About Us" />
</map>

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