Meta tags are a bunch of code that is located in the His regular unbiased information about the determination of the title, keywords, description and robots from a blog or a blog article
than that meta tag also contains the author's blog, content language, the target blog, open graph and caption her other, this was the one that did the search engines to crawl the blog to look seo
gives meta tags on blog / website means it has implemented one of optimization within the scope of the page seo, of course it will have to be supported by title, keyword and description that supports the content direction, so it does not lose its competitiveness with other blogs in the jockeying for position in the search engines
for those who are looking for the concept of meta tags to be installed in his blog, here is the concept of meta tags are often used by most bloggers
Meta Tag
<meta content='width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0' name='viewport'/>
<meta content='text/html; charset=UTF-8' http-equiv='Content-Type'/>
<meta content='blogger' name='generator'/>
<link expr:href='data:blog.homepageUrl + "favicon.ico"' rel='icon' type='image/x-icon'/>
<link expr:href='data:blog.url' rel='canonical'/>
<link expr:href='data:blog.homepageUrl + "feeds/posts/default"' expr:title='data:blog.title + " - Atom"' rel='alternate' type='application/atom+xml'/>
<link expr:href='data:blog.homepageUrl + "feeds/posts/default?alt=rss"' expr:title='data:blog.title + " - RSS"' rel='alternate' type='application/rss+xml'/>
<link expr:href='"http://www.blogger.com/feeds/" + data:blog.blogId + "/posts/default"' expr:title='data:blog.title + " - Atom"' rel='alternate' type='application/atom+xml'/>
<link href='http://www.blogger.com/openid-server.g' rel='openid.server'/>
<link expr:href='data:blog.homepageUrl' rel='openid.delegate'/>
<link href='xxxxx' rel='publisher'/>
<link href='xxxxx' rel='author'/>
<meta content='width=device-width, initial-scale=1, maximum-scale=1' name='viewport'/>
<meta content='xxxxx' name='google-site-verification'/>
<meta content='xxxxx' name='msvalidate.01'/>
<meta content='xxxxx' name='alexaVerifyID'/>
<meta content='xxxxx' name='p:domain_verify'/>
<!-- SEO Meta Tag -->
<b:if cond='data:blog.homepageUrl == data:blog.url'>
<meta content='keyword yang tampil di homepage blog ' name='keywords'/>
<meta content='deskripsi blog' name='description'/>
</b:if>
<b:if cond='data:blog.pageType == "item"'>
<meta expr:content='data:blog.pageName' name='keywords'/>
<b:if cond='data:blog.metaDescription'>
<meta expr:content='data:blog.metaDescription' name='description'/>
</b:if>
</b:if>
<b:if cond='data:blog.pageType == "index"'>
<b:if cond='data:blog.searchLabel'>
<meta content='noindex,nofollow' name='robots'/>
</b:if>
</b:if>
<meta content='Indonesia' name='geo.placename'/>
<meta content='Nama Anda Disini' name='Author'/>
<meta content='general' name='rating'/>
<meta content='all' name='audience'/>
<meta content='id' name='geo.country'/>
<!-- SEO Meta Tag end -->
<!-- SEO Title Tag -->
<b:if cond='data:blog.pageType == "index"'>
<title><data:blog.pageTitle/></title>
<b:else/>
<b:if cond='data:blog.pageType == "archive"'>
<title>Arsip Untuk <data:blog.pageName/></title>
<meta content='noindex,nofollow,noarchive' name='robots'/>
<b:else/>
<b:if cond='data:blog.pageType == "error_page"'>
<title>Halaman Tidak Ditemukan - <data:blog.title/></title>
<b:else/>
<title><data:blog.pageName/> - <data:blog.title/></title>
</b:if>
</b:if>
</b:if>
<!-- Facebook Open Graph -->
<meta expr:content='data:blog.title' property='og:site_name'/>
<meta content='id group facebook blog' property='fb:app_id'/>
<meta content='id admin facebook blog' property='fb:admins'/>
<meta expr:content='data:blog.url' property='og:url'/>
<meta content='website' property='og:type'/>
<b:if cond='data:blog.homepageUrl == data:blog.url'>
<meta content='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvonrsfLWYbYtF7bsKDSLGW1dQXZ2lw4ABDFOHhmrAOIviMRiG92VCfyRmCutECKJXarExBvzD75JTEk9oU6CFrg_eTRvM4k2SoAs1kn1XEkteDGPhxsTy19FPgLZ74zvXYmfamkV2uMg/s1600/opengraph.jpg' property='og:image'/>
</b:if>
<b:if cond='data:blog.pageType == "item"'>
<b:if cond='data:blog.postImageThumbnailUrl'>
<meta expr:content='data:blog.postImageThumbnailUrl' property='og:image'/>
<b:else/>
<meta content='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvonrsfLWYbYtF7bsKDSLGW1dQXZ2lw4ABDFOHhmrAOIviMRiG92VCfyRmCutECKJXarExBvzD75JTEk9oU6CFrg_eTRvM4k2SoAs1kn1XEkteDGPhxsTy19FPgLZ74zvXYmfamkV2uMg/s1600/opengraph.jpg' property='og:image'/>
</b:if>
</b:if>
<b:if cond='data:blog.url == data:blog.homepageUrl'>
<meta expr:content='data:blog.title' property='og:title'/>
<meta content='deskripsi/cuplikan blog' property='og:description'/>
<b:else/>
<b:if cond='data:blog.pageType == "item"'>
<meta expr:content='data:blog.pageName' property='og:title'/>
<meta expr:content='data:blog.metaDescription' property='og:description'/>
</b:if>
</b:if>
replacing the code above is in accordance with your blog
Information
•Viewport responsive support blog
•Keyword for blog (homepage) and the content of each blog
•Description for blog (homepage) and the content of each blog
•Info validation blog (webmasters, alexa, bing and pinterest)
•Link url author blog (isi dengan Google+)
•The setting appears in the blog title bar of the browser (homepage, full content, static and error pages)
•Open graph facebook
•As well as the code that is not less significant.
Happy To Help You !