Meta tags are advised to comply with certain standards of writing, so that search engines are able to collect data from a website / blog. Make sure the meta tags that we've included the need for standardization of a website.
Anything that standardization of data? Notice the HTML code of this trader:
<head>
<title><data:blog.title/><title darblog/>| Title Website/blog</title> <!-- snippet tags title -->
<meta expr:content='data:blog.pageTitle + " a description of the blog "' name='description'/> <meta expr:content='data:blog.pageTitle + " keywords from the blog "' name='keywords'/>
<meta content='EN' http-equiv='content-language'/>
<meta content='INDEX, FOLLOW' name='ROBOTS'/>
<meta content='WAHIDUDDIN, WAHID, MAS WAHID, MUHAMMAD WAHIDUDDIN' name='author'/>
<meta content='BLOGGER' name='generator'/>
<link href='email@domain.com' rev='made'/>