1and1 is currently offering .com domain name registration at the price of $4.99 instead of $9.99. Moreover, they are offering free private domain name registration at the moment, meaning that private registration does not cost anything extra. There are no indications as to how long this offer will last.
Other domain names extensions are on sale as well, notably .net and .org are currently offered at $6.99, while .info are only $0.99.
As for .ca domain names, they currently cost $9.99 on 1and1. All the prices indicated are for a 1 year registration.
To benefit from this offer, visit 1and1.ca.