A client's website is registered on a domain which has a protected whois. The website and domains were setup via a third party company which went under years ago but we are unsure if the company was bought over or what. Despite the fact this happened years ago, the domain is still registered and still points to my clients website. It looks like the domain and whois protection gets renewed every year. Initial registration was nearly 10 years ago.
I don't care for the website, but how do I go about claiming the clients domain on their behalf? Transfer is of course prohibited. Is it worth contacting the registrar to try and get the details of who has the domain details or would I have more luck using google to track down what company bought the original company and contact them directly?