Intro for search engine

 It also show how people use search engines daily to find information, products, and services online. If you want to start learning SEO or just curious, this introduction give you a strong starting point and make things easier to understand. This guide help you understand important concepts like keywords, crawling, and algorithms in a easy way



Introduction to Search Engine

How do you search for information these days? Most probably, you have been seeking the help of the Internet. It is so convenient to use the Internet. to find all the answers to your queries. you just need to type a word or phrase in the search box of search engine and click enter or click on the search button to list several links of information related to our search text. A search engine is a software or program that uses algorithms for seeking information about web pages. it identifies items in the database that match with the query specified by the user after the user click the search button, an algorithm examines the information stored within the database and retrieves the links to the web pages that appear to match the search terms entered by the user.

How Search Engines Work

As we type a few words in the search box of a search engines, the screen gets filled with the most relevant results. How does this happen? How does a search engine manage to find appropriate content for the user in a matter of seconds? Google and other search engines do three major things:

• Analysing the search text: A search engine analyses the search text or query the user is looking for.
• Choosing results that match the query: Then it matches the query with the most relevant results.
• Generating the result: Most searches generate several matches. The search engines sorts and brings the relevant matches on the top.

The functioning of a search engines can be understand through three elements:

• Web spider (or spider): It is the program that reads the content present on the website for creating entries for a search engine index.
• Indexer: The indexer segments the web pages and stores them in the database.
• Query processor: It delivers the search result.

components of a Search Engine

components of a search that can affect the results of the search are as follow:

1. Web crawler : It is the web crawler that examines the pages on the internet and collects information about the keywords. there are some variable features that can affect the search results

• Included pages: In most cases, search engines find information by beginning at one page; they follow other links from that page. Then they follow the links provided in the new pages. In case a page is not attached with another page. it might never be noticed by the search engine.