Hi, I am little confused about robots.txt in bookmarking website. I have created a bookmarking website and saw that after sometime my post deleted as per my requirement and then google showing that post as 404 error which in obvious. So how can I block google to crawl these pages or categories. How can I write robots.txt to prevent 404. Thanks
yes I know about this but like digg.com. Digg post are not appear in google search except videos. Suppose I have a category news with 100 post and after sometime I have delete all the post then google will show 404 error in GWM. So I want to prevent this issue from starting.