How the web search engine works

Search within a specific website site: Web Search allows you to specify that your search results must come from a given website. For example, the query [ iraq site: The simpler queries [ iraq nytimes.

How the web search engine works

Learn How Web Search Engines Work -

See how to get connected to the Internet. The good news about the Internet and its most visible component, the World Wide Web, is that there are hundreds of millions of pages available, waiting to present information on an amazing variety of topics.

The bad news about the Internet is that there are hundreds of millions of pages available, most of them titled according to the whim of their author, almost all of them sitting on servers with cryptic names.

When you need to know about a particular subject, how do you know which pages to read?

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Internet search engines are special sites on the Web that are designed to help people find information stored on other sites. There are differences in the ways various search engines work, but they all perform three basic tasks: They search the Internet -- or select pieces of the Internet -- based on important words.

They keep an index of the words they find, and where they find them. They allow users to look for words or combinations of words found in that index. Early search engines held an index of a few hundred thousand pages and documents, and received maybe one or two thousand inquiries each day.

Crawling and indexing

Today, a top search engine will index hundreds of millions of pages, and respond to tens of millions of queries per day.You want the answer, not billions of webpages, so Google's ranking systems use a search algorithm to give you useful and relevant Google search results in a fraction of a second.

Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for. How Google Search Engine Works?


Step1 – Crawling the Web. Search engines use a piece of software code to find the available information from webpages. The software code is referred with many names like crawler, bot, spider, etc.

How the web search engine works

Below are some of the crawlers used by popular search engines. Search engine optimization (SEO) is the process of affecting the online visibility of a website or a web page in a web search engine's unpaid results—often referred to as "natural", "organic", or "earned" general, the earlier (or higher ranked on the search results page), and more frequently a website appears in the search results list, the more visitors it will receive from the.

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Google Search - Discover How Google Search Works