Most people today who browse the internet are familiar with search engines, such as Google, Yahoo and MSN; well these are basically programs that are designed to search all of the documents within a website on the internet for specific keywords based upon your search criteria. They then produce the list of documents wherein these keywords are found, organizing the websites from the most relevant to the least, so that you, the browser can find the websites that are applicable to your search.
There are some common search engine principles that are used to activate the search engine. For starters when you use one of these engines, it first sends out a spider whose job it is to collect as many documents with the related keyword as possible. A spider can be compared to a web browser; however the difference lies in the fact that the web browser shows all of the information of a page while the spider has no visual components. It works with the HTML code of the page.
The next program that you will encounter is the crawler. It helps to find the links on each page and it is with its help that the spider knows where to go. Following these links, the crawler can find documents that were previously undetectable within the search engine. Then it is the indexer that analyzes each page and each part of the page, like headers, text, special HTML tags, etc. These three programs collectively constitute the common search engine principles.
There are some crawlers that are better than the ordinary crawlers. These crawlers do a deep crawl on the website to access as many pages as possible which contain the keywords that are mentioned within the search engine. These deep crawlers can also gather pages that have yet to be submitted, as well. However, it is always better to search on larger engines; as the larger the search engine, the higher the number of pages that are listed on the website. There are some search engines that can follow frame links, and others that cannot. So it is better to use search engines that follow frame links as it provides for complete search of your web page.
Crawlers are found in crawler-based search engines where the listings are created automatically. However, there are also human powered directories where they depend upon the data produced by humans for listings. There are hybrid search engines that work on a combination of both of these. Some of their searches are created automatically while some depend upon people.
Search engines have a large database that is used for the storage of downloaded and processed pages and is usually referred to as the index. Next in line in common search engine principles is the results engine. This is the program that extracts the search results from the database to rank pages. It is through this program that the order of the pages that best match the users query is arranged. There are also ranking algorithms that have to be followed to arrange the web pages in an orderly fashion.
The next important part is the web server. It is the web server that is responsible for all of the interactions between the user and other search engine components. The web server comes with a HTML page which has an input field and it is through this input field that the user can actually specify the exact query or information he/she is searching for. The web server has another need to fulfill as well, and that is to display all of the search results related to the needs of the user in the form of a HTML page.
By following the common search engine principles and organizing your website according to these principles, you can surely place your website in the top listings of the search engines.
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Multimap search campaign?
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Multimap are number 1 in google for "maps"? I'm interested to know what type of search terms they are struggling to get ranked for?
What are the top 3 contextual ad networks?
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What are the top 3 contextual ad networks?
Firefox
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What are the advantages of the new Firefox browser (please don't get technical)?
I'm looking for ideas for a new search engine name ...
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I'm looking for ideas for a new search engine name (other then google :)Feel free to suggest any name.
What is a favicon?
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What is a favicon?
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