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Designed to 'scrape' search-engine results pages or other sources of content (often without permission) to create content for a website. Scraper sites are generally full of advertising or redirect the user to other sites.。
A web site that offers its visitors the ability to search the content of numerous web pages on the Internet. Search engines periodically explore all the pages of a website and add the text on those pages into a large database that users can then search. With a search engine, publishing web pages that incorporate relevant key phrases, prominently positioned in particular ways, is critical. Contrast this with directories, which don't siphon content out of the HTML of a site's constituent pages, but instead are comprised solely of site names and descriptions written or edited by human reviewers.
Search engine marketing
strategies and tactics undertaken to increase the amount and quality of leads generated by the search engines.
Search engine optimization
strategies and tactics undertaken to influence the rankings of web pages in the search engines.
Search Engine Results Page（SERP）
A page of search results delivered by a search engine
A keyword, or phrase used to conduct a search engine query
Search term popularity
See "keyword popularity"
Share of Voice
Refers to the relative portion of exposure of an advertiser within a defined market sector over a period of time.
An animated ad that moves across the browser, usually with sound effects. It animates only long enough to play a message before settling into a stationary ad on the page.
A tall, thin ad unit that runs down the side of a web page. A skyscraper can be 120 x 600 pixels or160 x 600 pixels.
A small program or script that detects which web browser software an Internet user is using and then serves up the particular browser-specific cascading style sheet to match. Sniffer scripts are also used to detect whether a user has the Macromedia Flash plug-in installed, and if so, a Flash version of the page is displayed.
Manipulation techniques that violate search engines.
As in "spamming the search engines". Spamming is most commonly associated with the act of sending unsolicited commercial email, but in the context of search engine optimization, spamming refers to using disreputable tactics to achieve high search engine rankings. Such spamming tactics include bulk submitting spamglish-containing doorway pages.
Also known as a bot, robot, or crawler. Spiders are programs used by a search engine to explore the World Wide Web in an automated manner and download the HTML content (not including graphics) from web sites, strip out whatever it considers superfluous and redundant out of the HTML, and store the rest in a database (i.e. its index).
An infinite loop that a spider may get caught in if it explores a dynamic site where the URLs of pages keep changing. For example, a home page may have a different URL and the search engine may not be able to ascertain that it is the home page that it has already indexed but under another URL. If search engines were to completely index dynamic web sites, they would inevitably have large amounts of redundant content and download millions of pages.
A home page that is, for the most part, devoid of content. Often times created in Flash. Splash pages usually say something to the effect of "Enter Here" or "Choose our Flash-enabled site or the HTML version". Splash pages are an annoyance to Internet users as they introduce an extra hoop that the user has to jump through before they get to any meaningful content. Splash pages are also damaging to search engine rankings. Consider that your home page is typically considered by search engines as the most important page of your site. If your home page is a content-less splash page, then it's a wasted opportunity.
Sites that use valid XHTML and CSS, separate the content layer from the presentation layer. Because standards compliant sites are accessible and usable to both humans and spiders alike, they tend to rank better in search engines than non-compliant sites.
Certain characters, such as ampersand (&), equals sign (=), and question mark (?), when in a web page's URL, tip off a search engine that the page in question is dynamic. Search engines are cautious of indexing dynamic pages for fear of spider traps, thus pages that contain stop characters in their URL run the risk of not getting indexed and becoming part of the "Invisible Web." Google won't crawl more than one dynamic level deep. So dynamic pages with stop characters in its URL should get indexed if a static page links to it. Eliminating stop characters from all URLs on your site will go a long way in ensuring that your entire site gets indexed by Google
Certain words, such as "the," "a", "an," "of," and "with," are so common and meaningless that a search engine won't bother including them in their index, or database, of web page content. So in effect, the stop words on your web pages are ignored as if those words weren't on your pages in the first place. Including a lot of stop words in your title tag waters down the title tag's keyword density.
Pages which are indexed in Google but do not exist at this time. But during searching for a particular thing they are shown in the search result pages. These pages provides additional information about the particular search.