First you go to the blogger. > Dashboard > Template > Edit html > Then find
line .. <b:include data='blog' name='all-head-content'/> then press enter .
paste this html code .
<meta content='your website description' name='description'/>
<meta content=' example : seo optimization, your keyword, may be 5-10 word. ' name='keywords'/>
<meta content='your name' name='author'/>
Better for them to see this picture.
This way you do on page optimization for Blogger.
On-Page Optimization In this way, if you can, the better results you will get from 20 to -30 days.
I'd say the next chapter. On-Page Optimization WordPress's how to do. Thanks