Did you ever knew that you are loosing a lot of revenue / traffic from the error pages[400, 401, 403, 404, 500] and this can be monetized very easily. The trick is to first create a completely perfect version of your error page and upload them via the cpanel of your website.

Steps :
Just login to your Cpanel Account > Click on Error pages [With this tool you can create custom error pages to display when a user enters a wrong URL, an outdated URL or when the user is not authorized to access a specific directory of your web space. ]

You will be shown with 5 different types of Error Pages
400 - (Bad request)
401 - (Authorization required)
403 - (Forbidden)
404 - (Wrong page)
500 - (Internal server error)

Click on the 404 Error page Image link and you will be shown with a page like this :

These are the options available to your for monetizing / using the traffic which hits to your error pages :

> Try to add all your designed HTML Page code here and save it, so it does not show a broken link when a visitor views http://www.amitbhawani.com/errorpagelink

> You can just add couple affiliate banners on this Page which will be visible to the visitors who are going to view this page

> Show your sitemap page when someone goes to your error page so they can continue reading other posts/pages on your website.

> Redirect this page to your Homepage