Google is one of the most iconic companies in the World and Google’s search engine normally referred as Google Web search is one of the most popular search engine in the World. Interestingly the Google search engine or the Google web search handles over 3 billion searches per day. Needless to say the figure is astonishing. And one of the most amazing things about Google web search is that the search results are almost accurate and the users get the search result on the first page itself.
And if you are a curious person who always wanted to know how Google search engine searches billions or trillions of data from the Web in a fraction of second then here is an infographic from Quicksprout that explains how Google search engine searches data in a matter of second.
So after viewing the above infographic you would have got a clear about how Google search engine works. The search engine do not search the entire World Wide Web but it only searches the web pages that it has indexed. Google search engine algorithm work in the following manner.
The search engine basically does two things, Crawling and Indexing. Google search engine crawls out to new web pages with the help of its software programs called as “Web Crawlers” or Spiders. A spiders job is to find new web pages and follow the links that are available on those webpage’s. After the spiders have crawled through webpage’s the second part is indexing. Indexing is nothing different than the index we have in our book, but Google does indexing in a very big way. Suppose the spiders have crawled towards a web page, it indexes the web page according to its content. This indexed page is further stored on Google’s servers. Google’s index is already over 1,000,000,000 Gigabytes.
When you type a particular keyword in the search box, Google search engine searches that keyword from billions of the web pages it has indexed. Google search engine checks whether the key word you have entered is
- Present in the title or url of a page
- The number of times the keyword is used on that page.
- The page rank of that particular page
- Page contains synonyms for the keyword.
Google search engine takes all these 4 factors into consideration, sorts the data (in the form of images video, text etc) and then provides users with the best possible search results.
The above video would have given you a clear cut idea as to how Google spiders search webpages and indexes them.
The Evolution of Search (1997 – present)
Google search started in 1997. 17 years back Google search engine was not as advanced as it today. And so here is a video in which Google’s top executives explain how the Google search has actually evolved through the years. The video shows how Google went from just a search engine to a “Universal Search” engine.
We hope that this post would really help you in understanding Google crawlers (spiders), index pages, Google algorithm and how they work together to give you the best search result possible. So if you liked this post do consider sharing it on Facebook or twitter and if you have some more search engine facts to share then feel free to share them with us in the comments below.