Image Alternative Text tag in SEO

• Image Alternative Text tag 

<Image Alternative text> tag : The image alternative text tag should always contain the keywords that you are targeting. Do not have the same image alternative tag for more than 1 image, use different text but see that it has the keywords that you are targeting.

For eg. If my keyword is 'mobiles' then i can have  images with alt text as, mobiles nokia, mobiles lg, mobiles samsung s2 glaxy etc...

• Note : In blogger the image alt text tag is represented by image anchor text tag..

• Syntax 1 (For bloggers): imageanchor="...."

• Syntax 2 (For others): alt="...."

Font Decoration Tags:

Bold, Italic and underline tag : If your webpage has font in Bold, italics or underline in any part of the text, see that they contain the keywords that your are targeting.

Keyword Density:

See that the keyword density in the web page is anywhere between 1% - 3% for better ranking in google and the starting 20 words of your webpage must have these keywords