CP156: OnPageH1ToH3LeadingMatches

Number of leading matches in web page H1 to H3 tags

Correlates the number of leading matches in the web page H1 to H3 tags as a factor.

This factor correlates the presence of leading matches in H1,H2, and H3 tags (in the HTML source) with rankings.

The matches counted include any of the relevant hits highlighted by Google in the search results that appear at the beginning of the targeted zone.

You can learn more about the targeted zone for this factor at: https://www.w3schools.com/tags/tag_hn.asp.