Namesilo is one of the domain registrar that offer the cheapest domain registration you can ever get. Get 1$ discount coupon on any domain you purchase.
For instance, if the current price of a .com domain is $5, when you apply the coupon at checkout, $1 will be take off the purchase.
This does not only apply to only .com domains, but any domain extension you want.
The Namesilo promo coupon code is "NS1USDWIN
You also enjoy free whois protection and domain defender.
This Namesilo $1 off purchase promo code valid till December 2019.