I would like to personally thank you for choosing to support RankTank.
If you purchased or renewed a RankTank Basic API key, this allows you to scan a single custom domain, 100 keywords with no Google locale or query limits.
RankTank Pro users will receive a special key that is not tied to a single domain as will RankTank Add-on users.
New users, activate your API key by emailing your primary domain (TLD – e.g. lolcats.com) to jaco@ranktank.org or drop me a message on twitter @ranktankapp. (Activation within 24 hours.)
You will need to purchase a key for each domain to be scanned unless you upgraded to RankTank Pro or make use of the RankTank Add-on.
– Jaco & Snozzle