Ranking: Position of website in search result that display on browser when a person searches for information using a keyword or phrase in the search engines.

Rate Card: List of sites displaying the fees for advertisement and Link placement options.

Re-Submission: Re Submitting the web page to search engines or websites during link exchange process due to change in html code or links or after editing total webpage, this process is known as RE-SUBMISSION.

Real Name:  Some Corporate Brand Companies buy their company REAL NAME from search engine to protect their brand name. Due to this when ever any one search using that brand name as a keyword in the search engines the respective company’s url  who bye that brand name will display first in the search results.

Recip Link: Link exchange between two websites is known as Recip Link.

Reciprocal Link: When Websites place their links on other websites for improving the page rank and other reasons that are known as reciprocal links.

Referrer: The URL of the Html pages those referrers to web page. From Search Engine point of view referrer play an important role in determining what searches users use for entering websites.

Refresh Tag: Refresh Tag is Meta Tag written on top of the web page invisible to the outside user used to refresh or reload the pages after few seconds.

Registration: The process of websites or search engines to include a new web page or website for indexing.

Results Page: The web page that displays on the browser when a user types a keyword or phrase in the search bar is known as result page.

ROBOT: A Spider is one type of robot, the program that performed automatically without any intervention. Robot is a program that mimics a browser to download the web pages automatically.

ROBOTS.TXT: Presents of robot.txt file in the root directory of the website use to control which spiders has to access to which web pages in the websites. Robot.txt is a permission file used to indexing of the web pages by search engines.

ROI: ROI stands for Return on Investments. ROI is calculated by dividing the profits obtained by a company to the total funds invested by the company over particular period of time.

RON: RON stands for Run of Network. Is an option of ad buying where an ad can be placed anywhere on web pages of web sites with in ad network.

ROS: ROS stands for Run of Sites. Ad can be placed anywhere on particular website.