The attributes that make up a well-designed Web page are never displayed in the page itself, according to Rick DeJarnette. Although Web pages consist of two major tags, body and header, the content of the tag and the document type declaration (DTD), which precedes the tag in the page's code, are just as important for search engine optimization (SEO), he writes.
Quality body and head tag information can make a big difference in how a page gets ranked, DeJarnette writes. In a very lengthy post, he demonstrates why. He also details how to choose between HTML and XHTML, as well as provides tips on title tags, meta tag descriptions, link and meta robot tags.