SEO Terms and Definitions

SEO Dictionary of Terms

The SEO dictionary includes all widely used SEO terms and phrases.

A - SEO dictionary of terms

A technology created by Microsoft to enable interactive content on websites.
Ad Banner
An advertisement on a web page which links to another website.
An application run by Google to enable text, image, and video advertisements on websites. The advertisements are administered by Google and generate revenue on either a per-click or per-impression basis.
Google's flagship advertising product and main source of revenue which offers pay-per-click (PPC) and site-targeted advertisements.
Affiliate Marketing
A marketing practice in which a business rewards another business (called the affiliate) for each visitor brought by the affiliate into their website. Generally affiliates only get paid if a visitor complete an action.
A free service owned by that can measure the traffic to a website.
The mathematical model a Search Engine such as Google uses to rank web pages in an order of relevance to a particular keyword.
Statistical information about a website incluidng number of visitors, search impressions, bounce rate, traffic sources etc.
How well a web page ranks in a search engine. Five main factors are associated with authority: number of inbound links, the age of the website, traffic trends, site history, and high quality original content.

B - SEO dictionary of terms

Bad Neighbourhood
Sharing an IP block or a server with other websites that have been blacklisted by a search engine. Due to the proximity of the IP address range, the search engine my ban this website as well.
A link to one’s own webpage. The number of high quality backlinks is the most important factor in determining the search ranking of a page.
The amount of information that can flow through a connection.
Banned Site
A site blacklisted (de-indexed) from a search engine due to unethical SEO practices, such as Cloaking, Duplicate Content, Inappropriate link exchanges (having multiple backlinks from sites that are nothing to do with your subject), Having malware on your website, and using a link farm.
An advertisement that runs across the top of a website or down the side of it.
Black Hat SEO
Deceptive marketing technqiues to artifically improve a website ranking. These practices can cause a website to be banned.
A website where users can post a journal of their thoughts, often providing a forum for opinions and commentary.
See Crawler.
Broken Link
A link that leads to a non-existent page.

C - SEO dictionary of terms

Copy of a web page stored on a search engine.
Designing your website so that search engines see one thing and visitors see something totally different. This will cause the website to be banned by the search engine.
The process of turning a search engine user into a visitor to the webpage and purchasing on it, either via normal search listings or paid listings.
A small file written by the browser to a user's local computer to track the user's experience.
CPC (Cost Per Click)
The price an advertiser pays when a user clicks on the paid listing. The advertiser does not pay if the listing is shown without being clicked on.
Cost per thousand ad impressions.
CSS (Cascading Style Sheet)
Text based files used on websites in a specific language to tell the web browser how to display graphical elements.
CTR (Click Through Rate)
From the total number of users who see your web page on search result for a particular keyword, it is the percentage of users who actually click through to your web page.
Conversion Rate
Conversion rate is the percentage of visitors reaching the landing page who complete the process of purchasing on it.
An automatic search engine script that collect data from webpages across the internet for creating a search index.

D - SEO dictionary of terms

Dedicated Server
A server that is only used to run one website.
Dead Link
A link that leads to a non-existent page.
DoFollow Link
A link that increases the ranking of the target web page.
Domain Name
The human readable name for a website for example
Doorway Page
A page used to funnel search engine or paid traffic to another website. They have little useful content and often de-indexed by search engines.
Duplicate Content
Duplicating the same content from another website.
Dynamic Content
Web pages that display different information based on the input from the user.

E - SEO dictionary of terms

F - SEO dictionary of terms

A special form of vector based graphical content used for creating attractive designs on web pages. Search engines are incapable of indexing or interpreting flash content.
FTP (File Transfer Protocol)
A mechanism to transfer files between one computer and another ove rthe internet, very popular as users can use an application on their computer to do this, called an 'FTP Client'.

G - SEO dictionary of terms

Gateway Page
Same as Doorway Page.
Geographical Targetting
Getting visitors from a specific country, state or region.
Google's search engine spider.
Google Keyword Tool
A tool provided free by Google which estimates how competitive a keyword is, recommends keywords, and will determine which keywords are relevant to s website.
Google Traffic Estimator
A tool provided free by Google which helps AdWords advertisers improve their conversion rates.
Google Website Optimizer
A tool provided free by Google which estimates how many Google searchers will click on an ad for a particular keyword.

H - SEO dictionary of terms

A HTTP request to a web server. If a web page has five images on it, each of these images would have their own hits.
Home Page
The main page on a website, which sets the brand name and menu structure into the site.
Hyper Text Markup Language, the most common language used for creating web pages.
HTTP (Hyper Text Transfer Protocol)
The normal way information is transferred between a browser and a server.
HTTPS (Hyper Text Transfer Protocol secure)
An encrypted mechanism to transfer Information between a browser and a server, to ensure security.
A link between one web page pointing to another web page.

I - SEO dictionary of terms

Inbound Link
A link to one’s own webpage. The number of high quality inbound links is the most important factor in determining the search ranking of a page.
The database of a Search Engine consisting of keywords and links to all its crawled web pages.
Internal Link
Link from one page to another page on the same website.
IP Address
The machine readable form for a website, for example the IP address of is

J - SEO dictionary of terms

A scripting language used on web pages.

K - SEO dictionary of terms

A word or term entered in a search engine query which returns relevant web pages.
Keyword Density
The percentage of words on a given web page that are identical to a given keyword. A keyword density of 2% to 4% is considered good.
Keyword Funnel
Searches for words that are related to each other. Some search engines produce very good results in keyword funnels.
Keyword Stuffing
The practice whereby keywords or terms are used in a website unnecessarily in order to artifically improve the page's visibility with search engines.
Keyword Targetting
Use of keywords to optimise a website such that it will rank highly in searches for the specific keywords.

L - SEO dictionary of terms

Landing Page
The page on which a visitor arrives after clicking on a link or advertisement.
A connection between one web page pointing to another web page, activated when the user clicks on it.
Link Baiting
Technique to gain backlinks, by creating popular content on a website which others will want to link to.
Link Building
A critical SEO practice which creates links to your website.
Link Burst
A sudden burst of high quality links that point towards a website.
Link Churn
The rate at which a website builds or loses back links.
Link Exchange
Reciprocal linking of one webpage to another. Considered ethical when the web pages are related.
Link Equity
The quality of the inbound links of a website.
Link Farm
Web pages connected in a closed network of links with the purpose of creating high rankings on search engines. Link farms often get banned by search engines.
Link Juice
Jargon that refers to the quality of a website's page rank obtained from backlinks. This expression was coined by SEO consultant Greg Boser.
Link Rot
The percent of a website's links which are broken.
A list returned by a search engine containing links to its indexed web pages that are relevant to the keyword. Also known as SERP.
Long Tail Keywords
Keyword phrases with at least 2 words in them.

M - SEO dictionary of terms

Any sort of software such as viruses, trojan horses, worms etc.
Measures to quantify the success of your website, such as search engine traffic, conversions, top traffic keywords, keyword rankings, etc.
The process of earning revenue through a website, usually through advertising.

N - SEO dictionary of terms

NoFollow Link
A link that does not increase the ranking of the target web page.

O - SEO dictionary of terms

Organic Search Results
Search results returned by the search engine as naturally relevant to the search query, unlike a paid listings.
Outbound Links
The links from a given page on your website to another web page.

P - SEO dictionary of terms

Paid Listing
Results included in a the listings of a search engine as a result of a fee. These are usually displayed separately to organic listings.
Reduction in the ranking of a website for one or more keywords due to spamming or black hat SEO.
PPC (Pay Per Click)
The advertiser pays a pre-determined price when a user clicks on the paid listing. The advertiser does not pay if the listing is shown without being clicked on.
PR (PageRank)
The value Google gives any web page on the internet, calculated by an algorithm developed by Google founders Larry Page and Sergey Brin. The more populat the web page, the higher its PageRank.

Q - SEO dictionary of terms

The process of entering keyword into the search engine to produce a search listing of relevant results.

R - SEO dictionary of terms

The position of a particular web page in the Search Engine results.
Method of redirecting an old web page to a new onee, when the user enters a web address that no longer exists. A 301 redirect implies that the move is permanent, where a 707 redirect is temporary.
The source from which a website visitor came from.
If a site has been banned from the search engine, the owner may ask for reinclusion.
How useful users find search results.
See crawler.
RSS (Really Simply Syndication or Rich Site Summary)
Web feed formats used for distributing frequently updated content, such as blogs, news, podcasts and videos.

S - SEO dictionary of terms

Search Engine
A platform consisting of servers, databases and algorithm which crawls websites and indexes links to the sites mapped to keywords found.
Search Term
A word or term entered in a search engine query which returns relevant web pages.
Semantic Clustering
A technique for developing relevant keywords PPC web page, by focusing on keyword phrases that are associated and closely related.
SEO (Search Engine Optimization)
The process of improving your organic search engine rankings using methods such as keyword optimization and building inbound links to your website from other web pages.
SERP (Search Engine Result Page)
A page of search results for a particular keyword query.
Computer used to host web pages and serve them to the internet.
A page that contains some or all of the links on the website, so that the pages can be easily found by search engines.
As applied to SEO, this refers to techniques that are designed to artificially achieve higher rankings for a web page. An example is leaving comments on blogs purely for creating backlinks to a wensite.
Spamdexing (also known as search spam, search engine spam or web spam) involves manipulating the relevance of pages indexed by a search engine, typically by repeating unrelated phrases.
See crawler.
Splash Page
The first web page that the user sees when they enter a website.
Sponsored Listing
An paid ad on a a search results page.
The act of submitting a web site to a search engine for indexing.

T - SEO dictionary of terms

The number of visitors a website receives.

U - SEO dictionary of terms

URL (Universal Resource Locator)
The exact path for a web page for example
Unique Visitor
One specific identifiable user that visits the website, irresepctive how many pages they actually view.

V - SEO dictionary of terms

W - SEO dictionary of terms

Each domain has an ownership record, which is called the Whois record for that domain.

X - SEO dictionary of terms

XML (Extensible Markup language)
A language to store and transfer text-based data.

Y - SEO dictionary of terms

Z - SEO dictionary of terms

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