What is the "ALT-instead of Properties"?

ALT-instead of attributes, used to describe the pictures on the page. The cursor in the picture when displayed on the screen language that is used to achieve the label, such as at right.

From the SEO and user experience perspective, "ALT-substitute property" are necessary. Its importance are:

1, Web Content relevance is a prerequisite for optimized keywords. Web search engines think that the picture on the theme should be consistent with the web page. Conversely, when the search engine judge the "page key words", the picture of the "ALT-substitute property" is a trusted reference point.

So, do not forget to add keywords in the "ALT-instead of Properties" of picture on the page.

2, Sometimes because of some reason, the picture can not be displayed on web pages. Descriptive "ALT-substitute property" can tell the user the contents of that location. In order to add the user experience. Regular sites should do so.

The writing style of "ALT-instead of Properties".

The worst (but most common):

<img src="nt12343.jpg" alt=""/>

Slightly better (but hadn’t tell the user details):

<img src="nt12343.jpg" alt="Baby"/>

Best (a brief description of image content, and nested keywords):

<img src="nt12343.jpg" alt="Baby 2 year old birthday cake">

To avoid (which may lead to be considered as "Spam"):

<img src="nt12343.jpg" alt="Baby baby baby darling birthday cake birthday cake birthday baby"/>

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