Two words that you really don’t like to see in the same sentence is “Revenue” and “Leakage”. This is a polite way of saying money that you should have been earning that you really aren’t. I have conversations with people day in and day out that revolves around how to stop the leakage and make more money….so what I have learned over the years.
Revenue leakage comes in many, many forms. It could be that the domains aren’t installed correctly at a parking company or they’ve been moved out of your account at a parking company (this happens a lot). The nameservers aren’t set correctly or cNames aren’t up to date if you are using a rotation service.
The most obvious revenue leakage is forgetting to add your W8/W9 tax form or even your bank details to your parking account. I don’t know how many times I’ve received an email from a person accusing me of taking their money and not paying them. I check their account and they’ve forgotten to provide bank details. Their tone usually changes dramatically at that point.
Another form of revenue leakage is not actually knowing what you own. The problem with domains is that they’re just so easy to forget about, drop and then lose. We had a client that had their domains littered across about fifty registrars and they had no idea what was going on. They asked for our help and over the next year we aggregated the domains into a single registrar, locked them down and saved them a fortune.