Adwords – A system to advertise on Google & partner sites on a CPC (cost per click) basis.
Agent Name – Synonymous with "User-Agent". This is the name of a spider or browser as defined by the owner.
Algorithm – A mathematical formulae which is used in order to rank websites and web pages.
Altavista – One of the first large scale search engines.
Back Link – A link from one website to another.
Bridge Page – Similar to "Doorway Page", this is a specifically designed entry point for a website.
Click-Through – A click on a link that leads to another website.
Click-Tracking – The use of scripts in order to track inbound and outbound links.
Cloaking – Delivering different content to specific crawlers/spiders. This is generally used to trick spiders into seeing optimized content.
Comment Tag – A tag in HTML that is invisible unless viewed through the source code.
Counter – A program or script that counts hits/visits to a page.
CPA – Cost per Action. Where you pay for a specified action such as a purchase.
CPC – Cost per Click. With this you are charged for every click your link on someone’s website receives.
CPL – Cost per Lead. Where you pay for a lead i.e. is someone does something.
CPM – Cost per Thousand. Where you pay for each 1000 impressions.
Crawler – A program that goes through websites and gathers information for the crawler’s creator.
Cross Linking – Multiple sites linking to each other.
CSS – Cascading Style Sheets. Used to manipulate and easily manage the design of a website.
CTR – Click Through Rate. The ratio of impressions shown to the number of clicks.
Dead Link – A link that produces a 404 error, page not found.
Directory – A website that list other websites in their various categories.
Domain – The name for a website e.g. SEOChat.com.
Dynamic Page – A page that generates content "on-the-fly" as a user requests the page.
Error Log File – A server log file which records errors encountered.
Google Everflux – This denotes the continuous changes in the Google search results pages.
FFA Free For All – This is a links page with nothing but links added by visitors.
Freshbot – This is the name for the Google crawlers that are known to add pages to the Google index more promptly than others.
Northern Light – An older search engines, once very popular.
Open Directory Project – A large directory of websites run by volunteers. Their database is used by many website across the internet.
Optimization – Fine tuning a website or webpage with the ultimate goal being to ascertain a higher position in all or a specific search engine’s results.
Outbound Link – Linking from your website to another website.
Page View – The number of times a page was loaded.
PopUp – The opening of a new window above the previous window.
PFI – Pay For Inclusion. This is where a site must pay to be listed at all.
Pop Under – A pop-up that loads under a page so that it is only viewable when the current page is closed.
PR – Google’s Page Rank. The higher the rank the better position your website or page will have in their results.
Query – A search phrase submitted to search engines.
Rate Card – A sheet with pricing information.
Reciprocal Link – Where 2 sites exchange links.
Referrer – The page from which a user has come.
Refresh Tag – A tag which defines when and to where a page will refresh.
Robot – Generally the name given to a spider / crawler. Anything that is not a human visitor.
Robots.txt – A file created to direct the search engine spiders in specific directions of the website.
Scooter – The search crawler of Altavista.
Search Engine – A site which searches the web for sites which are relevant for a given search query.
SERP – A search engine results page.
Slurp – The Inktomi search crawler.
Spider – A program that visits and downloads specific informaiton from a webpage.
Submission – Submitting a site to a search engine or directory.
Traffic – The visitors and page views on a website.
URL – Uniform Resource Locator. The address at which a specific resource can be found.