The process of maximizing the number of visitors to a particular website by positioning the website so that it appears high on the list of search results returned by any given search engine.
Web search engines get their info by internet crawling from site to site.
What does it mean when a search engine Indexes a webpage? Indexing means connecting words and other definable tokens found on web pages to HTML and their domain names -established subjects. The organizations are made in a public database, made accessible for web search queries. A query from an user may be single word. The index helps locate info regarding the query as fast as potential.
Some of the techniques for cacheing, and indexing are trade secrets, whereas net crawling is a clear-cut procedure for seeing all websites methodically.
Normally when an user inputs a query into an internet search engine it’s a couple key words. The index already has the names of the websites including the key words, and these are immediately got from the index. These are only part of the processing each search results web page needs, and additional pages (next to the top) need more of this post processing.
Beyond straightforward key word lookups, search engines offer their own GUI- or command-driven search parameters and operators to refine the search results. These supply the essential commands for the user participated in the feedback loop users create by weighting and filtering while refining the search results, given the initial pages of the first search results. Most search engines support using the boolean operators OR, AND and NOT to help end users refine the search.
Boolean operators are for literal searches that enable the user to refine and expand the conditions of the search. The engine looks for the words or phrases exactly as input. Some search engines provide an innovative feature called proximity search, allowing users to define the space between key words. There is, in addition, theory-based searching where the research involves using statistical evaluation on pages including the words or phrases you seek for. As well, natural language queries enable the user to type a question in an identical kind one would ask it to a person. A website in this way would be ask.com.