SEO - Theme 5: Mandatory elements
- Rule 5.1.1 : Does each Web page have a page title (title tag)?
- Rule 5.2.1 : For each Web page with a page title (title tag), is the content of this tag relevant?
- Rule 5.3.1 : For each page containing a title tag, is its content at most 100 characters long ?
- Rule 5.4.1 : For each page of a site or a group of pages, is the title tag unique ?
-
Rule 5.5.1 : For each Web page is the document type (doctype tag) available?
- Rule 5.5.2 : For each Web page is the document type (doctype tag) valid?