Here is a list of terms used in Website Search Engine Optimization:
301 Redirect: Method of redirecting an old webpage to a new location. More simply, to display another web page for the web address that you are trying to visit. 301 implies that the move is permanent (as opposed to temporary, etc.)
AJAX: Asynchronous JavaScript and XML. A way to design web pages that are more end-user friendly and respond more quickly when the user requests data. A good example of AJAX in practice is Google Maps.
Alt Tag: An HTML attribute typically used within the IMG tag to provide alternate text when images cannot be displayed.
Anchor Tag: An HTML tag that allows you to create a link to another document or web page or to a bookmark within the current web page.
Backlink: Links originating from one website and pointing to another website or web page.
Black Hat SEO: The use of unaccepted or frowned upon SEO practices in order to get higher rankings and more traffic. Use at the risk of being dropped from the engines or at least being removed from high rankings.
Blog: "Web Log". An online journal of sorts.
Bot: Programs written to scour the web automatically for various reasons (to index web pages, for spamming purposes, etc.) aka web robots, web crawlers, internet bots, spiders.
Conversion: Web traffic that fulfills a pre-established goal, such as purchasing of a specific product or filling out a registration form, etc.
CPA: Cost Per Acquisition. Fee paid to an affiliate marketer for driving a particular action or event on your site (either a sale or lead generation, etc.).
CPC: Cost Per Click. Typical rate of measuring the expense involved with acquiring web traffic CSS: Cascading Style Sheets. A language used to describe how a given page or web site will look. Used to control font styles, graphical layouts, color, etc.
CTR: Click Through Rate. Standard method of measuring the success of an online advertising campaign. Calculated by dividing the number of users who clicked on an ad by the number of times the ad was shown (also known as an impression). (Wikipedia)
Dynamic Website: A website whose content is not fixed. What is shown on a page is based on user-selected activities and/or programmatically driven.
Google PageRank: Google PageRank™ is a numeric value that represents how important a page is on the web.
Keywords: Words that are used by search engines to determine the topic of a given web page.
Keyword Density: How often a keyword or keyword phrase is used on a given web page.
Landing Page: A content-rich web page geared around a particular topic, product or conversion goal. Typically a main navigation item of a website.
Meta Tags: Web page specific, descriptive information that helps a search engine identify the purpose and topic of a given web page. Common meta data include a web page's description and keyword listing.
Organic Search: Search results in a search engine that are not paid advertisements.
Paid Link Building: Websites who are willing to link back to your site for a fee in order to boost your rankings/weight in the search engines.
Reciprocal Link: The practice of placing a link from website A to website B strictly because website B is linking to website A. I scratch your back, you scratch my back.
Search Engine: Web site whose function is to help users find web pages on any given searched topic.
SEM: Search Engine Marketing. The act of marketing a website via search engines, whether this be improving rank in organic listings, purchasing paid listings or a combination of these and other search engine-related activities.
SEO: Search Engine Optimization. The act of altering a web site so that it does well in organic listings of search engines.
SERP: Search Engine Results Page. The listing of web pages that a search engine shows a user once they've entered a search value.
Spider: Programs written to scour the web automatically for various reasons (to index web pages, for spamming purposes, etc.) aka web robots, web crawlers, bots, internet bots.
Static Website: A website or web page whose content is fixed (does not change or has to be manually changed).
Supplemental Results: Google's secondary index of web pages it doesn't consider worthy of being in the main index. This concept has been done away with by Google publicly, but I do feel it actually still exists in a not-as-readily-identifiable way.
Title Tag: A meta data element that determines the actual "title" of a given webpage. The title is what shows up in the top bar of your browser. It is also the hyperlink that shows in search engine results listings.
TLD: Top Level Domain. The three main domain extensions: .com, .net, .org
URL: Uniform Resource Locator. Or, more commonly, a web address.
W3C: World Wide Web Consortium.
White Hat SEO: The use of accepted SEO practices in order to get higher rankings, more traffic, etc.
