Google’s Crawling System for 404 and 410 Status Codes

You all encounter many critical as well as trivial errors while dealing with websites and web pages. Loading errors, page not displaying errors, image loading errors etc are all part of it. But, little do we know what these errors, 404 and 410 implies and if Google treats them differently or not.

404 error

404 versus 410 refer to an HTTP status code. Usually, when users look for a page, Google sends back a status code to the browser about the page; for example: 200 HTTP response code for a perfect running page, 404 HTTP code if a page is not found and 410 HTTP code if a page is completely and permanently removed and has less chance to appear again.
[Read More:http://cualidosoft.wordpress.com/2014/04/17/googles-crawling-system-for-404-and-410-status-codes/]