SEO Stand for Search Engine Optimization. In Simple terms, It means the process use to optimize a website technical configuration, content relevance and link popularity so its pages can become easily findable, more relevant and popular towards user search queries, and as a consequence, search engines rank them better is knows as SEO. The work of the search engine is divides into three stages.

  • Crawling
  • Indexing
  • Retrieval


Crawlers = An automate bot (called a Spider).

This is the first step in which a search engine uses web crawlers to find out the webpages on the WWW (World Wide Web). This involves scanning sites and collecting details each page: title, images, keyword other pages etc. Google spiders could read several hundred pages per second. Nowadays, It is in the thousands. The web crawler is a program use by the Google to make an index.


This is the second step, Indexing is when the data from a craw is process and place in a database is knows as Indexing SEO. This method index your web page and its linked pages in search engine results. This process of indexing is identifying the words and expressions that best describe the pages and assigning the pages to particular keywords.

Search engine Process

Search engine Process
Search engine Process

Different between Crawling or Indexing

Crawling Indexing
Crawling means “following your links”Indexing means “adding webpages into Google search”.
This process through which indexing is done. Google crawls through the web pages and index the pages.When search engine crawlers visit any link is crawling and when crawlers save or index that links in search engine database is called indexing.
When google visits your website for tracking purpose. This process is done by Google’s Spiders or Crawlers.After crawling has been done, the result gets put on to Google’s index (i.e. web search), which means Crawling and Indexing is a step by step process.
A process which is done by search engine bots to discover publicly available web pages.Index means when search engine bots crawl the web pages and saves a copy of all information on index servers and search engines show the relevant results on search engine when a user performs a search query.
It finds web pages and queues for indexing.It analyses the web pages content and saves the pages with quality content in index.


The final step, in which the search engine provides the most useful and relevant answers in a particular order in response to a search query submitted by the user.

If you have any queries regarding this article or if I have missed something on this topic, please feel free to add in the comment down below for the audience. See you guys in another article.

To know more about SEO (Search Engine Optimization) please Wikipedia click here .

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Basic Engineer

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