I’m running several websites under different domain names. Do I need to have one account per domain name or can I have one account for all domain names?
There are two options available for you at the moment:
1. Register individual accounts for each website. You can use the same email address for several websites.
2. Register one account. Use the script associated with that account for all websites.
If you use option two all scoring will be associated with all websites the script is installed upon.