Cloaking | SEO Glossary: C

Serving different content to search engine spiders than to human visitors. Cloaking is basically a "bait and switch" tactic, where the web server feeds visiting spiders content that is keyword-rich, thus fooling the search engine into placing that page higher in the search results. Yet when the visitor clicks on the link they are given different content, which may be totally unrelated. Search engines frown upon this practice and some will penalize or ban sites that they catch doing it.

Clickthrough | SEO Glossary: C

The action of clicking an ad element and causing a redirect to another web page.

Clickthrough | SEO Glossary: C

The action of clicking an ad element and causing a redirect to another web page.

Clickthrough | SEO Glossary: C

The action of clicking an ad element and causing a redirect to another web page.

Cgi-bin | SEO Glossary: C

A "virtual" directory contained in URLs indicates a CGI (Common Gateway Interface) script is in use. A sure tip-off to the spider that your page is dynamic.

Call To Action | SEO Glossary: C

Call to action words are "doing words" such as "Click here", "Buy Now", "Enter Now" or "Click to download"

and

A call to action is copy used in advertising to encourage a person to complete an action as defined by the advertiser.

Cache | SEO Glossary: C

Copies of web pages stored locally on an Internet user's hard drive or within a search engine's database. A cache is the reason why web pages load so quickly when a user hits the Back button in their web browser, since the page is not being re downloaded off of the Internet. Google is unusual among search engines in that it allows Internet users to view the cached version of web pages in its index. Simply click on the word "Cache" next to the search result of interest and you will be taken to a copy of the page as Googlebot discovered and indexed it.This feature of Google makes it easy to spot cloaking..

Blacklist | SEO Glossary: B

Lists that either search engines or vigilante users compile of search engine spammers, which may be used to ban those spammers from search engines or to boycott them.

Black Hat SEO | SEO Glossary: B

Black Hat SEO is sometimes called spamdexing (the opposite of White Hat SEO). Black Hat SEO can be any optimization tactics that cause a site to rank more highly than its content would otherwise justify or any changes made specifically for search engines that don�t improve the user�s experience of the site. In other words, Black Hat SEO is optimizations that are against search engine guidelines. If you step too far over the mark, your site may be penalized or even removed from the index.

For example, adding product reviews to e-commerce site is encouraged, because it adds useful content to the site. However, using bait-and-switch techniques to create a doorway page that hooks people querying for information on soccer, it then leads to information about health products will be unacceptable.

The following Black Hat SEO tactics should be avoided to keep your site away from penalties:
� Keyword, anchor text and domain name stuffing.
� Using hidden text or links
� Using techniques to artificially increase the number of links to your pages, such as link farms
� Excessively cross-linking sites to increase link popularity
� Cloaking, delivering different pages depending on the IP address and/or agent who is requesting it
� Doorway / Gateway / Jump Pages
� Duplicate content taken from other sites
� Auto-generated content of no value to the end user
� Spamming forums or blogs
� Excessive outbound links to websites that use high risk techniques or spam