Ranking

In the context of search engines, it is the position that a sites entry isdisplayed in a
search engine query results.

Re-submission
The process of resubmitting a web page or web site to a search engine ordirectory.
This is often done to update a listing because of content changes,the page has moved,
 or the page has been removed. It can also be done afterupdating or optimizing a page
to acquire better rankings.

  RealNames
A company that sells names associated web address queries. This is mainly for corporate
 brand name protection. Some search engines now use that system to generate search
 results. Companies can buy their Real Name and their name will be the first one returned
 for that search query. For example, Coke-Cola could buy Coke and have their webpage
 returned first for any search on Coke.

  Referrer
The address (URL) of the web page a user came from, before entering another site.
Each time a user clicks (selects) a new HTML link on a web page, most browsers report
a "HTTP-REFERER" string to the new site. Web hosts can record these "referer strings"
 in a log file for usage by a web site.

In the context of search engines, these referer strings are a powerful way to determine
 what searches users used to enter your website. As part of a referral string from search
engine, the search terms a user typed in will be included.

Some img tag counter style logging software can also record referral strings.

  Refresh Tag
Meta Refresh tag reloads a page at a set time.

  Registration
The act of submitting a website to a directory for inclusion (such as registering with
Yahoo).

Results Page
A page at a search engine that displays the results of searches. After the user types in
a search query, the page that is displayed, is call the results page. The order of results
on the results page, is called the rankings.

  Robot
A program that automatically does "some action" without user intervention. In the context
 of search engines, it usually refers to a program that mimics a browser to download web
 pages automatically. A spider is a type of robot. Some times referred to as Webbots.

  robots.txt
A file on a web site in the root directory of a website that is used to control which spiders
 have access to which pages within a website. When a spider or robot connects to a
website, it checks for the presence of a robot.txt. Only spiders that adhere to the Robots
 Exclusion Standard will obey a robots.txt command file

There are several specific fields in a robots.txt such as User-agent specifies which
User Agents are allowed to access the site and "Allow/Disallow" specifies which
directories a spider may access.