Online Article Writing and SEO Glossary: Page C

This SEO glossary page lists article writing and SEO terms starting with letter C.

To learn about terms starting with other letters, please scroll down to the bottom of the article.


A click, also known as point-and-click,is the action of a computer user moving a cursor to a certain location on a screen (point) and then pressing a mouse button, touchpad, touchscreen or another pointing device. In the article writing business, online article writers perform single-clicks (for example, to follow hyperlinks and navigate from one web page to another), left and right-clicks in the copy-paste procedure, right clicks to highlight a snippet of text and perform an action in the text editor, etc. Clicks are also the potential actions by web page visitors; they may click on ads (Google ads and Amazon ads).

A single click on a Google ad unit is enough to result in share revenue for the author of the content displayed on a web page, two clicks in case of link units, and possibly more clicks in case of Amazon ads.

Click-through rate

Click-through rate (CTR) is a way of measuring the success of an online advertising campaign. It is defined as the number of clicks on an ad (number of visitors who clicked on an ad on a web page) divided by the number of impressions (times the ad is shown), expressed as a percentage. For example, if an ad is delivered 100 times (100 impressions) and receives one click, then the click-through rate for the advertisement would be 1%.


On Web 2.0 websites based on user-generated content, comments are a written remark related to article or journal content, added piece of information, or an observation or statement related to other comments.

Comment etiquette

Comment etiquette is a term referring to online behavior of users leaving comments on a given website.

Competitor analysis

In article marketing, competitor analysis is an assessment of the strengths and weaknesses of current and potential web competitors. If you want to rank for a given keyword, you should check your competition first. The common way to do this is to type in the keywords in the search box and assess the competitors on the first pages. Online article writers can assess how many backlinks their competitors have, the quantity and quality of their content, the number of outbound links and anchor text used on their web pages, etc.


Web content is the textual, visual or auditory content displayed on web pages, encountered as part of the user experience on websites. It may include: text, images, videos, sounds, animations and other things.

Content-rich doorways

Content-rich doorways are pages containing a lot of heavily keyword-optimized content. In general, they might help with long-tail keywords, but not for more competitive broad terms. The creation of these pages should be avoided, because search engines recognize them as spam. They fall under the category of black hat SEO.

Contextual targeting

Contextual targeting is a term applied to advertisements appearing on web sites (or other media), based on content displayed on these web pages. Online article authors publishing on revenue shares are in control of their content, therefore, doing some keyword research and using the keywords with SEO in mind may help increase their earnings (as long as the content complies with Google Terms of Service).


Goal conversion means achieving your article writing goals. If you write on a revenue sharing site, your goal is probably to make money from ad clicks and purchases. A goal conversion occurs when a visitor completes the task you have defined.


Cookies (also known as web cookies orbrowser cookies) are snippets of text sent by a server to a web browser and then sent back by the browser each time it accesses that server. If the article-publishing platform where you are writing your articles has a referral program, you can use your referrer ID to refer new visitors and be credited for the new sign up. The URLs with your referrer ID will store a harmless cookie in the browser of the person who visits it (cookies are not software and they cannot be programmed, cannot carry viruses, and cannot install malware on the host computer). If this person registers a new account within 30 days without deleting the cookie from their browser, you will be credited with the referral and earn 25% based on their content.

Copyright infringement

Copyright infringement is the unauthorized use of material protected under copyright law in a manner that violates one of the original copyright’s owner’s exclusive rights, such as the right to reproduce or create derivative works build upon it. In plain English, if someone copies your content and publishes the same content elsewhere on the web – that’s copyright infringement. You can check whether your articles have been stolen by copying snippets of text and pasting them into the search box. Check the results to see whether you can find that text on pages other than your web pages. If this is the case, file a DMCA complaint with Google. Your option is also to contact the webmaster or administration of the site where your content has been copied.

Core keywords

Core keywords, also known as broad terms, around your web pages are based.


Cost-per-click (CPC) is the bid placed on a keyword ad, that is charged every time a visitor clicks the advertisement. It is the cost or cost-equivalent paid per click-through. Pay-per-click (PPC) and cost-per-click (CPC) are two terms sometimes used interchangeably, and sometimes as distinct terms. When used as distinct terms, PPC indicates payment based on click-throughs, while CPC indicates measurement of cost on a per-click basis (for contracts not based on click-throughs). There are two primary models for determining cost-per-click: flat-rate and bid-based.

Crawl frontier

A crawl frontier is a term related to the crawling process. Crawl frontiers are the URLs which can be followed by a crawler from a given point. Web crawlers don’t involve in optimizing any web-page, and they are not related to SEO. However, it can be useful to know how they crawl and index web pages because this knowledge may help you optimize you content on-page before it is crawled (at least with proper keyword density and placement).


A Web crawler is one type of Internet bot (a software agent performing automated tasks over the Internet). Also known as web robots and spiders, crawlers are search engine programs crawling from one site to another, following the links included in the page they are visiting. The process is called Web crawling or spidering. In general, the process starts with a list of URLs to visit and as the crawler visits these URLs, it identifies all the hyperlinks in the page and adds them to the list of URLs to visit (called the crawl frontier). Web crawlers collect and catalog data around the Internet for later processing by a search engine that will index the pages to provide fast searches (indexing is the name for the process in the context of search engines designed to find web pages on the Internet). Crawlers pay strong attention to web page keywords, too.


Cross-linking is the practice of linking two or several websites together, usually sites (or web pages in case you are writing articles on a revenue sharing site) owned by the same individual. These sites can also be random sites, related to the topic, with links built based on link exchange. You should be cautious when it comes cross-linking. It can be a great way to improve your SEO and offer visitors better options or information. However, cross-linking too much will be apparent and may cost you penalties from the search engines.

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A ? B ? C ? D ? E ? F ? G ? H ? I ? J ? K ? L
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* This glossary is under construction. The links to pages listing article writing and SEO terminology starting with letters C, D and E will be added soon.