What is a webcrawler? | Webcrawlers

web crawler is basically a Bot , which works with programming manner in order to gather information from web and store that into some files or Db .

I usually prefer to do web crawling working with the help of kapow katylist tool .

Eg:-

If you want to all results coming on serach of PHP on hiting serach on Google or Say Quora , then these all results can be gathered together with the help of web crawling.