How Search Engine Works – Google, Bing, Yahoo & Other

How Search Engine works and Its process:

All search engines works using a 3 phase approach to managing, ranking and returning the search results on SERPs (Search Engine Results Pages). But a lot of them don’t have an idea what is happening behind that search engine box when they type in their search queries. So now, let us know how search engine works example like Google, Bing and the rest of them on the World Wide Web.

Before going into the search engine working process let us know what is mean by Crawler, Spider or Robots?

Crawler, Spider or Robots – They are the software which crawls the web pages of a website and stores the data in the search engine servers based on keywords & content type.

Mainly, there are three main working functions which are done by the search engines:

1. Web Crawling
2. Indexing
3. Algorithm

• Web Crawling:

Web crawlers will find out data or content which is published out on the World Wide Web. Essentially, crawlers will copy the content on web pages and repeatedly check those web pages in a certain time period to see if they are changes made, and make a copy of any changes found. This process is done by the web crawlers.

• Indexing

Once a “spider” or “crawler” has crawled a web page, the copy that is made is returned to the search engine and stored in search engine servers.  Search engine servers are huge, purpose built collections of servers which act as a repository of the all the copies of webpages being made by the crawlers.

The repository of web pages is referred to as the ‘Index’, stored indexed data is used to provide the search results you see on the search engine. Indexing is the process of organizing the masses of data and pages so they can be searched quickly for relevant results to your search query.

• Algorithm:

Finally, we have a huge collection of web page copies which are being constantly updated and organized. So, now search engine can quickly find what you are looking for. But we need right answers relevance to our search term which they can be ranked in order on SERPs – this is where the Search Engine Algorithm comes into play.

The Search engine algorithm is a very complex and lengthy equation which calculates a value for any given website in relation to a search term, keywords and content. We don’t know what the algorithm actually is, because search engines tend to keep this a closely guarded secret from competitors. And also from people looking to game the search engine to get to the top spots.