What is a web crawler or robot or spider in Search Engine terms


In this article, I am gonna tell you about the spiders. Not the real scary spiders, but the virtual one. One that search engines have. These spiders are also known by many names – Robots, Bot, Crawlers etc. Better call them as web crawlers or search engine robots.

Let’s understand what is a web crawler

In Simple Words: A web crawler is a program developed by the search engines which help them to read and understand the websites.

In more technical terms: A crawler is a program that visits the websites and reads the content. It understands and phrases this information into a machine understandable language and stores this information in the search engines database.

Watch the above video for better understanding. In the above video – you will understand the importance of web spiders. How it helps search engines to discover and store the new websites in their database.