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When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish to crawl.
A search engine results page ( SERP) is a webpage that is displayed by a search engine in response to a query by a user. The main component of a SERP is the listing of results that are returned by the search engine in response to a keyword query . The results are of two general types : sponsored search: advertisements.
Favored placement. Favored placement (also known as preferred placement) is the practice of preferentially listing search engine results for given sites. It is also known as pay for placement, but this term usually refers to advertisements that appear along with relevant search results while favored placement affects the order of actual search ...
When seeking online information, many people turn to search engines like Google, Bing, Yahoo, or AOL Search. These search engines function as digital indexes, organizing available content by topic and sub-topic, much like an index in a book. Each search engine builds its index using distinct methods, typically beginning with an automated ...
The percentage shows the perceived importance, and the arrows represent hyperlinks. PageRank ( PR) is an algorithm used by Google Search to rank web pages in their search engine results. It is named after both the term "web page" and co-founder Larry Page. PageRank is a way of measuring the importance of website pages.
Comparison of web search engines. Web search engines are listed in tables below for comparison purposes. The first table lists the company behind the engine, volume and ad support and identifies the nature of the software being used as free software or proprietary software. The second and third table lists internet privacy aspects along with ...
A backlink is a link from some other website (the referrer) to that web resource (the referent ). [1] A web resource may be (for example) a website, web page, or web directory. [1] A backlink is a reference comparable to a citation. [2] The quantity, quality, and relevance of backlinks for a web page are among the factors that search engines ...
Search engine indexing is the collecting, parsing, and storing of data to facilitate fast and accurate information retrieval. Index design incorporates interdisciplinary concepts from linguistics, cognitive psychology, mathematics, informatics, and computer science. An alternate name for the process, in the context of search engines designed to ...