No. In essence, you are misleading your clients by making it look like you're responsible for things you aren't really doing. Many people find this acceptable and there is certainly no law against it, but we believe it is better to be honest about who is responsible for what. Do you really want your customers doubting whether you're misrepresenting your skills?
For very small projects or friends and family sites, you may consider signing up for a plan that allows additional domains. Doing this for the sole purpose of re-selling services is against our policies and limits your customer's options for support and billing questions
