ccTLD - Country Code Top Level Domain
Each country has a unique domain extension, usually a two letter abbreviation for the country. IANA is the organization responsible for overseeing the ccTLDs. ex. .us .ca .jp

CGI - Common Gateway Interface
Short for Common Gateway Interface, a small script that processes data taken from the user such as from a form application or guestbook entry.

Contact Record
In the case of many registries, contact information for technical, billing and administrative purposes are maintained in their database. It is important to keep your contact records updated to ensure that billing and renewal can proceed without problems.

Control Panel
a control panel is a privately accessed web based managment tool.

Cookie
A file or data item left on your computer by a server or other system you've connected to. They are most commonly used to allow the server to record information about what screens you've already seen and any personalizing information you've supplied. Many users find this an invasion of Privacy, as few systems tell you they are collecting and recording data. There are a number of "anti-cookie" software that automatically erase any such data between visits to your site.

Country Code
A standard two-letter abbreviation for the name of a country. It is used with domain names with locations outside the United States.

CPA - Cost Per Action
Cost per action for banner ads. This is the best type of rate to pay for banner advertisements, and the worst type of rate to charge. Advertisers only pay for the visitors who click on their banner and then sign up, fill out a form, or purchase something on their website. This is most common for Affiliate Programs. My opinion is this type of payment arrangement is already an endangered species, and will soon become extinct.

CPL - Cost Per Lead
The cost an advertiser pays per lead. This is a very common method of selling advertising. A lead can be anything from an e-mail address for a newsletter to a complete survey that needs to be completely filled out and verified in order to get credit. CPL prices can range greatly depending on the program.

Crawler
A crawler is much like a spider except it is programmed to constantly surf the web, following any and all links it comes across. As it visits new websites, it checks its own database to see if the site is listed. If the site is already listed, it makes note of any changes and calculates a search engine ranking for the site. If the site has not been previously listed, the crawler will record all important information, add the website to the database, and assign a ranking to it.

Cross Linking
When a group of domains that are most often owned by the same individual inner links to each other. This is often for the purpose of increasing its popularity with search engines.

Custom web design

Custom web design involves hiring a professional website designer to create a website layout, complete with fonts, images, logos and pages to suit your website's needs.

Cyber Squatter
The illegal act of buying up domain names and “sitting” on them with the intent of making a large profit off the sell. Cyber squatters will often buy out large quantities of names, trademarks, or highly marketable names to try to make a buck or prevent others from lawful use of the name.

Cybersquatting
The illegal act of buying up domain names and “sitting” on them with the intent of making a large profit off the sell. Cybersquatters will often buy out large quantities of names, trademarks, or highly marketable names to try to make a buck or prevent others from lawful use of the name.