cara buat meta blogger seo friendly

<b:if cond='data:blog.pageType == "index"'> <title><data:blog.pageTitle/></title> <b:else/> <title><data:blog.pageName/> | <data:blog.title/></title> </b:if> <b:if cond='data:blog.url == data:blog.homepageUrl'> <meta content='Deskripsi blog kalian' name='description'/> <meta content='Kata kunci blog kalian' name='keywords'/> </b:if> <b:if cond='data:blog.pageType != "item"'> <meta expr:content='data:blog.pageTitle + " | Deskripsi Blog Anda"' name='description'/> <meta expr:content='data:blog.pageTitle + "keyword Blog kalian"' name='keywords'/> <b:else/> <meta expr:content='data:blog.pageName + " | Deskripsi Blog kalian"' name='description'/> <meta expr:content='data:blog.pageName + "keyword Blog kalian"' name='keywords'/> </b:if>