What is domproof.com?

[AGMContainerControls]

I see in webmaster tools that I have a bad URL linking from the mydomain.domproof.com. What is this??

[DmitriiK]

Hi.

Well, you are either a spammer and trying to get hits to that domain or you need to read on ghost and referral spam.

Cheers.

[AGMContainerControls]

Thanks for the response. I assumed it was ghost spam but figured I would check with the masses to see if anyone had any experience with these leaving bad links in Webmaster tools. Also I was wondering how these were fixed, either with a disavow file or something else?

[DmitriiK]

First try to contact the web development people over at that place and ask to remove that link (they might have been hacked or something). If there is no response, than yes - disavow. If it continues - then you can report them through Google.