BODY area , Visible text, Keyword in the Heading, All headings

BODY area
The body tag indentifies the beginning of the main section of your Web page, the main content area. The whole of the Web page is designed between the opening and closing body tag. (...) including all images, links, text, headings, paragraphs, and forms.

The recommendations on how to use keywords in the BODY tag are the same as in other important areas. Your primary keywords should be placed at the top of your body tag (first paragraph) and as close to the beginning of a sentence as possible. Do not forget to use them again in each paragraph. Keywords should not be repeated one after another. For search engines that check keyword presence at the bottom of the body tag, you should use your most important keywords within the last paragraph from the closing body tag.

Visible text
The content of the Body tag includes both visible and invisible text. The term 'Visible text' refers to the portion that is displayed by the browser.

Extra emphasis by search engines is put on keywords when you underline them or make them bold, thus helping higher rankings for these keywords.

Keyword in the Heading
It is important the keyword is present in the very first heading tag on the page regardless of its type. If the keyword is also used as a first word, you will raise its prominence.

All headings
There are standard rules for the structure of HTML pages. They are written in a document-like fashion. In a document, you start with the title, then a major heading that usually describes the main purpose of the section. Subheadings highlight the key points of each subsection. Many search engines rank the words found in headings higher than the words found in the text of the document. Some search engines incorporate keywords by looking at all the heading tags on a page.