URL Comparison & Marking

Please help me out with this. I want to do this in Excel.

Actually I want to compare different URLs which will be present in two different columns in an excel sheet.
If the URL(domain name) is same in that particular cell(in both the column) should get highlighted with some color.

As shown in 1st picture column C and column D contains different URLs. The form of URL in column ‘C’ will always be like i.e. http://bikeadvice.in/ or http://www.bikeadvice.in/
But in column ‘D’ it may not be exact domain name, but may be some inner pages of that domain like
http://bikeadvice.in/bikers-guide/ or some totally different domain

I want to compare these 2 columns and highlight the cell which are having entries of same domain name.
Please refer to picture 2.


Please tell how I can do this by using formula/macro or something else in Excel.