I have a domain whose only use is to provide me a pointer to my home IP address. Is this doing something real with this domain? If it is, how would one go about

I have a domain whose only use is to provide me a pointer to my home IP address. Is this doing something real with this domain? If it is, how would one go about determining that I was even doing this? Or, do you intend to determine realness of use by the absence of blogspam and/or domain parking web pages at the domain in question?