In the HTML coding, the heading tag for this page is Key words in headings

This appears at the top of the text of this page

This tag is very important to search engines as

• it is visible to the visitor, and
• it ostensibly sums up the purpose for the page

The size of the heading does not matter. Size can be set by CSS styles.

Take care not to have more than one such heading on the home page. (Don’t confuse the poor search engine)