Google Search simply provides you hundreds of results for any query within mere seconds but ever thought how?
How Do Google Search Works?
Google looks through hundreds of billions of web pages to provide you with the required results. Now Google has more information than all of the libraries around the world added together.
Every second thousand of gigabytes of data is either getting added, crawled or indexed on Google.
But how does Google gets all of the data to store or know that what is particularly in the content on a webpage across the web?
Let’s find out how do google search works and organizes information? And here we go…
Crawling To Find Information/Data
Process of finding information for Google search completely relies on the work of software called Crawlers Or Google Bots.
For simplicity let’s think of Google as a huge library, now the crawler is the person who is sent out to the market to find out if there’s any new book published or any old book is getting updated and report back to the librarian.
Just like that crawler gets out on Google and visit every publicly accessible webpage, it’s just like you browsing content on the web. It travels page to page, to every possible publicly accessible page and carries it to Google’s Search Index.
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Indexing To Organize Information/Data
Now when the person(crawler) returns to the librarian and tell him all the updates, the librarian reads all the updated content either it’s new or edited then creates an index for every word on the book so that when a visitor comes to ask with a query, the librarian would know which book would suit him best.
Similarly, when a crawler finds new pages on the internet and tells them to Google, it renders all of the content on that webpage.
Now Google creates a search index and keeps track of key signals like present keywords and website freshness.
Google Search Index includes hundreds of billions of web pages, which gathers up more than 100,000,000 gigabytes of data in size.
Just like there’s an index at end of the books, where entries are present for words that are included in books, the Google search index too reads all of the web pages and add the words present in them into the index.
Read our blog on Crawlability and Indexability Issues
A Constant Process
As the web and other content keep constantly changing, crawlers are always onto their work. They keep noticing the frequency of how often the content is updating or changing on a page and revisit as needed.
Google crawlers are always in the process of finding new pages either directly or by the added links on pages.
Google offers a free tool too called Search Console, it helps them to crawl the content on a site better. Sitemap.xml and robot.txt are functions that can be used to tell Google how often the content should be revisited or which content they don’t want to be indexed. It’s completely free and offers the same tool to everyone to ensure the best possible result.
Organising More Than Web Pages
The search index is not all about web pages, it gathers all types of helpful information from other sources too to provide you comprehensive results.
They’ve generated multiple indexes for different types of information which are gathered together by crawling, through partnerships, through data feeds that are sent to Google and through their own encyclopedia of facts names the Knowledge Graph.
This collective information is quite helpful for finding more than just theory information, with this you can find the usual travel timing from your local public transport agency or even an event timing occurring near you.
Google gathers all of this information and creates an incredibly huge library and provides you with a web page ranked based on thousands of criteria to ensure you get the exact, concise and comprehensive answer to your query.
Read about: Google ranking factors
I’m glad you read all that along, I hope you would have found answers to your query, if not, then the comment box is wide open for you, I assure you we’ll answer you as fast as possible.
Read more about other topics: #3 Reasons Why Website Development is Important for Business.