What are the page ranking factors related to keywords?

The page ranking factors related to keywords are as follows:

The domain name contains keywords.

The directory name contains keywords.

The file name contains keywords.

Use keywords in the description tag.

Use keywords in the keyword tag.

Use keywords in image ALT text.

The keyword subdomain contains the keyword.

Keywords are used in HTML comment tags.

Keywords appear in the page file extension.

Use keywords anywhere in the H1 tag.

Keywords appear in a list (<i>) on the page.

The number of times keywords are used and repeated in the page text.

Use keywords as the first word or phrase in the H1 tag.

Use keywords as the first word or phrase in the title tag.

Use keywords in other body headings (H2 to H6).

Used in the first 50 to 100 visible words on the page.

Use keywords in boldface (<b> or < strong>).

The image file names used on the page contain keywords.

Use keywords in the anchor text of internal links exported on the page.

Factors that explain the use of keywords anywhere in the title tag.

Use keywords in the anchor text of external links exported from the page.

Keyword density (number of times a keyword is used divided by the total number of words on the page).

Use keywords in italics (<i> or <em>) in the page URL parameters.