When you search for query on Google, you might wonder from where Google provides these result pages.How does Google find web pages matching your query. Its very simple to understand this, think of Web as a very large book and with a huge index telling you what is placed where and about everything and then its served to you. Basically three process are performed in delivering search results
- Crawling is the process by which Googlebot discovers new and updated pages to be added to the Google index.This process is performed by automated computer programs called crawlers/spider/robot/bot
- Indexing is the process where the Crawler/spiders compile a huge index of all the crawled pages or words.
- Serving is something When a user enters a query, auotmated programs search the index for matching pages and return the results that are most relevant to the user query.
Its very important for each webmaster to get the wesite crawled and indexed by Google to get a higher rank in search results pages.