| job posting | Recruitment websites can add JobPosting structured data to their web pages to mark up web pages for Google Jobs search. |
| google adsense | Googles advertising partnership program for website content creators. It allows websites to join Googles AdWords display network and display advertisements on their website. They recieve a share of the revenue generated from these advertisements. |
| link velocity | How quickly (or slowly) a website accumulates links. A sudden increase in link velocity could potentially be a sign of spamming, or could be due to viral marketing or doing something newsworthy (either intentionally or unintentionally). |
| image alt text | A text that describes an image to crawlers. |
| pages per session | Also referred to as page depth, pages per session describes the average number of pages people view of your website in a single session. |
