Define ALT tag?

[virendra]

The ALT attribute also called as ALT tag are employed in XHTML and HTML documents in context of defining alternative text that is supposed to be rendered when the element can’t be rendered to which it is applied. One great feature of ALT tag is that it is readable to ‘screen reader’ which is a software by means of which a blind person can hear this. In addition, it delivers alternative information for an image due to some specific reason a user can’t view it, such as in case of a slow connection and an error occurred in the source attribute.
For example, the HTML for this image will appear something like this:
<img alt=”you can define at tag just below the input box of image title while uploading or editing an image.” src=”<http://www.webgranth.com/wp-content/uploads/2013/07/Alt tag.jpg”>

[Chhaya]

An HTML attribute specified in the IMG tag to provide alternate text when an image on a Web page cannot be displayed. If no ALT tags are provided, then a screen reader would only be able to say "IMAGE" or perhaps provide a file name.

[arianagrand]

ALTernate text On a Web page, a text description that can be added to the HTML tag that displays an image. The ALT text is displayed by the browser when the cursor is moved over the picture. If pictures are turned off in the browser, the ALT text is automatically displayed instead.....

[thomosmax]

Alt tags is very important to improve traffic of any website.

[dadiehost]

Alt tags alternate text associated with a web page graphic that gets displayed when the Internet user hovers the mouse over the graphic. Alt tags should convey what the graphic is for or about and contain good relevant keywords. Alt tags also make web pages more accessible to the disabled. For example, a vision-impaired user may have a web browser that reads aloud the text and alt tags on a page. (For those familiar with HTML, "alt" isn't actually a tag by itself but an attribute to the "img" tag.). Note that the value of Alt tags for SEO have been discounted over time by the search engines to the point that now it is of minimal value.

[rohit]

The alt attribute is used in HTML and XHTML documents to specify alternative text that is to be rendered when the element to which it is applied cannot be rendered.

[rehal]

Alt tag is very important on images as spiders or Google bot does not know what the image is about but when we feed alt tag (alternative text) on that image search engine can better know what the image is all about.