What are crawlers?
A crawler is a program that accumulates data and information from the Internet by visiting websites and reading the pages. It is used by search engines and it is also known as a spider. This program stores all data and the external and internal links in a databank. It stores information about the web page content, meta tags, web page title and much more. It helps in website indexing, it crawls one page at a time through a website until all pages have been indexed.
Frequently asked questions
How can search engine crawlers be identified?
Search engine crawlers can be identified in a number of ways, including looking at the user-agent string of the crawler, examining the IP address of the crawler, and looking for patterns in the request headers.
How do web crawlers work?
Web crawlers work by sending out requests to websites and then following the links on those websites to other websites. They keep track of the pages they visit and the links they find so that they can index the web and make it searchable.
Why are web crawlers called spiders?
Web crawlers are called spiders because they crawl through the web, following links from one page to another.
