Meta Robots Tag: Allows page authors to keep their web pages from being indexed by search engines, especially helpful for those who cannot create robots.txt files. The Robots Exclusion page provides official details.

Organic Listings: Listings that search engines do not sell (unlike paid listings). Instead, sites appear solely because a search engine has deemed it editorially important for them to be included, regardless of payment. Paid inclusion content is also often considered "organic" even though it is paid for. This is because that content usually appears intermixed with unpaid organic results.

Outbound Links: Links on a particular web page leading to other web pages, whether they are within the same web site or other web sites.

Paid Inclusion: Advertising program where pages are guaranteed to be included in a search engine's index in exchange for payment, though no guarantee of ranking well is typically given. For example, Looksmart is a directory that lists pages and sites, not based on position but based on relevance. Marketers pay to be included in the directory, on a CPC basis or per-URL fee basis, with no guarantee of specific placement. Also see XML Feeds. Source: Did-It.com
PPC: Stands for pay-per-click and means the same as cost-per-click. See Cost Per Click.

Paid Listings: Listings that search engines sell to advertisers, usually through paid placement or paid inclusion programs. In contrast, organic listings are not sold.

Pay-for-Performance: Term popularized by some search engines as a synonym for pay-per-click, stressing to advertisers that they are only paying for ads that "perform" in terms of delivering traffic, as opposed to CPM-based ads, where ads cost money, even if they don't generate a click.

Pay-Per-Click or PPC: see Cost Per Click.

Paid Placement: Advertising program where listings are guaranteed to appear in response to particular search terms, with higher ranking typically obtained by paying more than other advertisers. Paid placement listings can be purchased from a portal or a search network. Search networks are often set up in an auction environment where keywords and phrases are associated with a cost-per-click (CPC) fee. Overture and Google are the largest networks, but MSN and other portals sometimes sell paid placement listings directly as well. Portal sponsorships are also a type of paid placement.

Position: See Rank.

Query: See Search Terms.

Rank: How well a particular web page or web site is listed in a search engine results. For example, a web page about apples may be listed in response to a query for "apples." However, "rank" indicates where exactly it was listed -- be it on the first page of results, the second page or perhaps the 200th page. Alternatively, it might also be said to be ranked first among all results, or 12th, or 111th. Overall, saying a page is "listed" only means that it can be found within a search engine in response to a query, not that it necessarily ranks well for that query. Also called position.

Reciprocal Link: A link exchange between two sites.

Registration: See Submission.

Results Page: After a user enters a search query, the page that is displayed, is call the results page. Sometimes it may be called SERPs, for "search engine results page."

Robot: see Crawler.

Robots.txt: A file used to keep web pages from being indexed by search engines. The Robots Exclusion page provides official details.

ROI: Stands for "Return On Investment" and refers to the percentage of profit or revenue generated from a specific activity. For example, one might measure the ROI of a paid listing campaign by adding up the total amount spent on the campaign (say $200) versus the amount generated from it in revenue (say $1,000). The ROI would then be 500 percent.

Search Engine: Any service generally designed to allow users to search the web or a specialized database of information. Web search engines generally have paid listings and organic listings. Organic listings typically come from crawling the web, though often human-powered directory listings are also optionally offered.

Marketing: The act of marketing a web site via search engines, whether this be improving rank in organic listings, purchasing paid listings or a combination of these and other search engine-related activities.

Search Engine Optimization: The act of altering a web site so that it does well in the organic, crawler-based listings of search engines. In the past, has also been used as a term for any type of search engine marketing activity, though now the term search engine marketing itself has taken over for this. Also called SEO.

Search Terms: The words (or word) a searcher enters into a search engine's search box. Also used to refer to the terms a search engine marketer hopes a particular page will be found for. Also called keywords, query terms or query.

SEM: Acroymn for search engine marketing and may also be used to refer to a person or company that does search engine marketing (i.e.., "They're an SEM firm).

SEMPO: Search Engine Marketing Professional Organization, a non-profit, formed to increase the awareness of and educate people on the value of search engine marketing.

SEO: Acronym for search engine optimization and often also used to refer to a person or company that does search engine optimization (i.e., "They do SEO").

SERPS: see Results Page.

Shopping Search: Shopping search engines allow shoppers to look for products and prices in a search environment. Premium placement can be purchased on some shopping search indices.

Spam: Any search engine marketing method that a search engine deems to be detrimental to its efforts to deliver relevant, quality search results. Some search engines have written guidelines about what they consider to be spamming, but ultimately any activity a particular search engine deems harmful may be considered spam, whether or not there are published guidelines against it. Example of spam include the creation of nonsensical doorway pages designed to please search engine algorithms rather than human visitors or heavy repetition of search terms on a page (i.e. the search terms are used tens or hundreds or times in a row). These are only two of many examples. Determining what is spam is complicated by the fact that different search engines have different standards. A particular search engine may even have different standards of what's allowed, depending on whether content is gathered through organic methods versus paid inclusion. Also referred to as spamdexing.

Spider: See Crawler.

Submission: The act to submitting a URL for inclusion into a search engine's index. Unless done through paid inclusion, submission generally does not guarantee listing. In addition, submission does not help with rank improvement on crawler-based search engines unless search engine optimization efforts have been taken. Submission can be done manually (i.e., you fill out an online form and submit) or automated, where a software program or online service may process the forms behind the scenes.

Query: See Search Terms.

XML Feeds: A form of paid inclusion where a search engine is "fed" information about pages via XML, rather than gathering that information through crawling actual pages. Marketers can pay to have their pages included in a spider based search index either annually per URL or on a CPC basis based on an XML document representing each page on the client site. New media types are being introduced into paid inclusion, including graphics, video, audio, and rich media.

Click here to go back to page 1 of the search engine terms glossary