Godaddy is a well known domain registrar. They offer many incentives every month. This time they are offering .com domains at just $7.99 that is more than 20% off. They have many additional features that come with the domain name.
If you want to check out the $7.99 offer you can buy a domain name from here(my referral link,but offer is not publicly available without referral link). You can buy the domain name which comes with various features.
If you want to get hosting with hostgator you can get the first month at just $0.01,yes at just $0.01 just use the coupon code "DNHPROMOCODE".
If you need any help while setting the domain and hosting,you can always place a comment.