Pages Per Session

Refers to the speed at which the elements on a web page load. Site speed relates to ease of use, and is also a metric used by search engine algorithms in determining site health.

A backlink is linked text on a website that sends the user to another website. You’ll often see sources cited in articles via backlinks to another source.

Backlinks are extremely important for website authority, because you are aligning yourself with related websites and sources within your industry. It’s just as important to work toward obtaining links from other sites to yours, which signals to search engines that your website is useful and trustworthy. Many strategies exist for maximizing a site’s backlink profile.

Keyword is a bit of a misnomer, because it can refer to a word or entire phrase that appears in web searches. 

However, in either case, it refers to a word or phrase representing a specific search term and idea. Websites will build strategies to rank for particular keywords that are closely related to their products or services, in order to generate more traffic and leads.