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SEO Glossary

 

 

C
A high-level programming language designed by Dennis Ritchie and Brian Kernighan at AT&T Bell Labs. C has been described as a high-level assembly language, in reference to the ease with which powerful, fast, and small software can be written.

C++
A high-level programming language originally designed by Bjarne Stroustrup at AT&T Bell Labs as an object-oriented extension for the C language. C++ gradually turned into a full-fledged language, a superset of C.

Cache
A temporary copy of data, such as web pages and web content, that makes accessing recently-stored data much faster. In the context of web browsing, if a user re-visits a page that was recently visited, the browser checks to see if the page was modified since the last visit and if a copy of the page is in the cache. If the page had not been changed and a copy exists in cache, the cached copy is displayed instead. This eliminates the need to download the same page over the Internet.

CAP
Acronym for Content Acquisition Program.

CFM
Standard filename extension for Cold Fusion Markup files.

CFML
Acronym for Cold Fusion Markup Language.

CGI
Acronym for Common Gateway Interface. CGI refers to programs that are used to produce dynamic, on-the-fly webpage content. Common CGI programming languages include Perl and PHP.

CGI-BIN (cgi-bin)
The default name for the directory that stores CGI scripts on a web server.

Citation
A citation is a reference to any entity. In the context of web design, a citation usually refers to a hyperlink to another site or URL.

Click-through
The action of clicking on a hyperlink on a web page in order to visit the page or site the link points to. In the context of web advertising, click-through is sometimes used as the basis for payment for advertising services; every time a user clicks-through an ad, the site that owns the ad pays the advertiser a certain amount.

Click-through rate
The measure of how often a hyperlink is clicked on. In the context of web advertising, click-through rate (or CTR) refers to how often an ad is clicked by a user. A high click-through rate means a large number of clicks for a link or ad.

Click tracking
The process of counting clicks on links with the use of an external counter program or site. Some sites display click track records on their pages as the number of visitors who have visited the site.

Client
In the client-server model, the client is the entity, user, PC, or host that requests a certain service from another entity, user, PC or host known as the server.

Cloaking
The process of hiding content or concealing activities from a user. Some websites retrieve information from a user's computer in the background with the user's knowing. Cloaking can be done on the IP level; users belonging to a particular IP address class can receive different content from that of other IP address classes.

Clustering
In search engine search results pages, clustering is limiting each represented website to one or two listings.

CMS
Acronym for Content Management System.

CMYK
Acronym for Cyan Magenta Yellow Black.

Cold Fusion
Cold Fusion is an application from Macromedia that creates HTML pages out of content and data from a database. Cold Fusion uses user-defined templates and fills those templates with content. Catalogs, for example, are easy to build and maintain in Cold Fusion. If a URL ends in .cfm, it is a page that was created with Cold Fusion.

Combined Logfile
A web server log file that stores all information about user agents, page access, and scripting errors in one common file.

Comment tags
Comment tags in HTML are tags that are used to indicate and insert comments in the HTML source. These comments are not displayed along with the rest of the content, and the only way to view them is to view the HTML source from a browser.

Content
Generally refers to the visible text on your web page, links leaving your Web page, the text in relation to those links, graphics and images, and multimedia content such as video and audio.

Contextual Link Inventory
Contextual ads and links are advertisements that are displayed along with search results that are related or relevant. For example, if a user searches for “cars” on a search engine, some of the contextual links that might be displayed may be car dealership sites, or auto insurance. A contextual link inventory refers to the total set of contextual ads and links that can be displayed to users in this manner.

Conversion
Conversion refers to site visitors actually following through on the goal of the site, such as buying a product online, or filling out a contact form, or downloading content.

Conversion Rate
Conversion rate refers to the percentage of site visitors that get converted into paying customers. See Conversion above.

Cookie
A cookie is a piece of data that is stored on a user's computer by a website. The cookie is used to uniquely identify the user during his visit to the website and . Cookies can be used to remember login names and passwords. Cookies may or may not be permanent over a period of time, after the user has logged out of the website, or has closed the browser program.

Counter
A simple script or program that counts hits or page views to a web site. Counter quality and features can vary widely. A counter is a common sight on webpages, where they display the total number of visitors over a certain period of time.

CPA
Acronym for Cost-Per-Action.

 

CPC
Acronym for Cost-Per-Click.

CPL
Acronym for Cost-Per-Lead.

CPM
Acronym for Cost-Per-Thousand (M is the Roman numeral for 1000). CPM advertising models are based upon advertisers purchasing page views in blocks of 1000. If a website displays 7000 page views with banners, the site has just shown 7 blocks. If they are receiving $8 cpm, then they just made $56.

CPS
Acronym for Cost-Per-Sale.

Crawler
A crawler is another name for a spider, a program that “crawls” along the Internet, downloading and analyzing multiple pages from one site. The name is in reference to the crawling locomotion of a spider on a web.

CRM
Acronym for Customer Relationship Management. CRM entails all aspects of interaction a company has with its customer, whether it be sales or service related. Because a lot of business is done online, with very little personal interaction, it helps to improve and personalize users' online experiences to make them feel more comfortable and at ease.

Cross linking
Cross linking refers to the act of setting up interconnecting links among a group of websites that may be relevant to each other. This can increase search engine ranking.

CSS
Acronym for Cascading Style Sheets. CSS is used to add simple to complex display styles to web pages, making it easier to achieve a uniform, consistent look across all pages in a website.

CSV
Acronym for Comma Separated Values.

CTA
Acronym for Content Targeted Advertising. This is a form of pay-per-click advertising that involves placing ads on content pages. For example, on a website that is devoted to musical instruments, there may be ads on a page that point to an online music store dealer.

CTR
Acronym for Click-Through Rate.

Cyber squatting
The practice of registering and owning a domain name that is very similar to a brand name, company name, or trademark, and then selling the domain name for highly inflated rates. For example, if a company Foobar exists and an individual registers foobarsucks.com, Foobar may want to buy the domain in order to protect its image and to remove a potentially damaging association with the domain name.

CVC
Acronym for Card Verification Code.

CVV
Acronym for Card Verification Value.

Custom error page
A custom error page refers to a page that is displayed for errors instead of the default, unfriendly and impersonal error pages generated by web servers. For example, a site may choose to have a custom 404 error page. Every time a user specifies a non-existent page on the site (which would result in a 404 error), the custom error page will be displayed instead and may notify the user of the error in a nicer way. Custom error pages may also be designed to be consistent with the rest of the site.

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