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How Google Finds Web Pages According to Search Query ?

How Google Finds Web Pages According to Search Query ?

How Google Finds Web Pages According to Search Query
How Google Finds Web Pages According to Search Query
How Google Finds Web Pages According to Search Query
How Google Finds Web Pages According to Search Query ?-: If your computer, Mobile or Laptop have Internet connectivity then you have knowledge of ocean and search engines like Google and Yahoo are the tool to find out exact info from the ocean of Internet.when you search on Google, you are almost instantly presented with a list of results from all over the web. Let’s know how does Google find web pages matching your query, and determine the order of search results?

How Google Finds Web Pages According to Search Query?

1.Crawling-:

Crawling is a process by which Google bot discovers new and updated pages on the web ( or crawl) billions of pages on the web. the program that does the fetching is called Google bot( also known as Robot, Bot or Spider) Google bot uses an algorithmic process: Computer Program determine which sites to crawl, how often, and how many pages to fetch from each site.

Google Crawl process pages with a list of web pages URLs, generated from previous crawl process and augmented with Sitemap data provided by webmasters as Google bot visit each of these websites it detects links on each page and adds them to its list of pages to crawl. new sites, changes to existing sites and dead links are noted and used to update the Google Index. Google doesn’t accept payment to crawl a site more frequently and Google keeps the search side of its business separate from it is revenue -generating Adwords service.

Google offer webmaster tools to give site owners granular choices about how Google crawls their site: they can provide detailed instructions about how to process pages on their sites, can request a recrawl or can opt out of crawling altogether using a file called “robots.txt”. Google never accepts payment to crawl a site more frequently — we provide the same tools to all websites to ensure the best possible results for our users.

Finding information by crawling

The web is like an ever-growing library with billions of books and no central filing system. We use software known as web crawlers to discover publicly available web pages. Crawlers look at web pages and follow links on those pages, much like you would if you were browsing content on the web. They go from link to link and bring data about those web pages back to Google’s servers.

2.Indexing

Google bot processes each of the pages it crawls in order to compile a massive index of all the words it sees and their location on each page . in addition Google processes information included in key content tags and attributes. Google bot can process many but not all, the content type for example Google cannot processes the content of some rich media files or dynamic pages.

Organizing information by indexing

When crawlers find a webpage, our systems render the content of the page, just as a browser does. Google take note of key signals — from keywords to website freshness — and we keep track of it all in the Search index.

The Google Search index contains hundreds of billions of web pages and is well over 100,000,000 gigabytes in size. It’s like the index in the back of a book — with an entry for every word seen on every web page we index. When we index a web page, we add it to the entries for all of the words it contains.

With the Knowledge Graph, Google continuing to go beyond keyword matching to better understand the people, places and things you care about. To do this, Google not only organizes information about web pages but other types of information too. Today, Google Search can help you search text from millions of books from major libraries, find travel times from your local public transit agency, or help you navigate data from public sources like the World Bank.

3. Serving Results

When a user enters a query, Google’s machine searches the index for matching pages and returns the results. Google believe are the most relevant to the user. relevancy is determined by over 200 fetches, one of which is Page Rank for a given page, PageRank is the measure of the importance of a page based on the incoming links from the other pages,. In simple terms, each link to a page on your site from another site adds to your sites PageRank. not all links are equal. Google works hard to improve the user experience by identifying impact and other practice that negatively impact search results. the best types of links are those that are based on the quality of your content.

In order for your site to rank well in search results pages. it’s important to make sure that Google can crawl and index your site correctly by following Google’s webmaster guideline you can improve page rank of your site.

Google’s related searches, spelling suggestion and Google suggest features are designed to help users save time by displaying related terms, common misspelling and popular queries the keywords used by these features are automatically generated by Google’s web crawler and search algorithms. if a site ranks well for keywords, it’s because Google has algorithmically determined that its content is more relevant the user query.

To see indexed pages in your site , use the site operator , like this site : Google.com.( note do not use space between the operator and google.com the URL) you can perform the search on a whole domain or limit it to a certain subdomain or subdirectory for example site:google.com/webmaster to exclude pages from your search, use I minus sign before the operator, for example, the search

site:google.com-site :adwords.google.com gives you all the indexed pages on the Google .com domain without the pages from AdWords .googler.com . the catch operator shows you an achieved copy of a page indexed by Google, for example, cache:google.com displays the last indexed version of the Google homepage, along with the information about the date the cache was created. you can also view a plain text version of the page. the is is useful because it shows how Google bot sees the page. 

Conclusion-: Google is the key player in the market of total Internet search In this post i have tried to explain in best what exactly happen back end when we search any information over Google.

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