It is easy and relevant to seek any information on the Internet. We use search engines every day to find out something near about us or to gather important images, videos, movies and more.
Nowadays more than 90% people worldwide uses Google for search. Google search engine is more trust able and gives relevant results in milliseconds. Have you ever thought how Search Engines Work and give you exact information which you’re looking for?
What Is A Search Engine?
Search Engines is a program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.
Simply, Search Engines are the set of algorithms which are designed in the way that they give you quality and relevant information based on the keywords you are searching for.
Learn – How Google Search Engine works? from W3training School Dehradun
How Does A Google Search Engine Work?
Search Engines works in 3 interrelated ways. When you publish a page, then the Google Bots or Spiders do visit your page and looks for meta information. The meta information is basically a Metadata. The <meta> tag provides metadata about the HTML document. Metadata will not be displayed on the page but will be machine parsable. Meta elements are typically used to specify page description, keywords, author of the document, last modified, and other metadata.
Here are the 3 (three) steps clearly defined – How Google Search Engines Work?
- Crawling: Crawling is the foremost process where Google Bots or spiders look for metadata. The metadata provides the complete information about the page titles, keywords, descriptions, images/videos, infographics, heading tags, hyperlinks and other information too. When a web crawler visits a page, it collects every link on the page and adds them to its list of next pages to visit. It goes to the next page in its list, collects the links on that page, and repeats. Web crawlers also revisit past pages once in a while to see if any changes happened. This means any site that’s linked from an indexed site will eventually be crawled.
- Indexing: Indexing is the second process after Crawling. When the Google Bots scans each and every detail of your webpage, then they place you in a huge database. The Google database contains hundreds of billions of relevant web pages. Suppose, you are trying to a make a list of all the books you own, their author and the category they belong to. Going through each book is the crawling and writing the list is the indexing. But now imagine it’s not just a room full of books, but every library in the world. That’s pretty much a small-scale version of what Google does.
- Ranking: When a user searches on Google then the most relevant information is displayed on SERPs. Ranking algorithms check your search query against billions of pages to determine each one’s relevance. Companies guard their ranking algorithms as patented industry secrets due to their complexity. A better algorithm translates to a better search experience. Ranking is affected by traffic, landing page experience, page loading speed, bounce rate, images optimization, on-page factors such as keywords, heading tags, meta tags etc.
How Do Search Engines Determine Relevance & Popularity?
Search engines typically assume that the more popular a site, page, or document, the more valuable the information it contains must be. This assumption has proven fairly successful in terms of user satisfaction with search results.
Popularity and relevance aren’t determined manually. Instead, the engines employ mathematical equations (algorithms) to sort the wheat from the chaff (relevance), and then to rank the wheat in order of quality (popularity).
In the early days of the web, search engines didn’t go much further than this simplistic step, and search results were of limited value. Over the years, smart engineers have devised better ways to match results to searchers’ queries. Today, hundreds of factors influence relevance, and we’ll discuss the most important of these in this guide.
Conclusions:
At last, Google Search Engine works in 3 ways – Crawling – Where content is discovered, Indexing – Where content is placed in a Database, Ranking – Where content is displayed to the user. Google shows your results on the top of the page when you’re content becomes popular.