We check this website, now realestate.co.nz is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is realestate Down Right Now? - NO! realestate is up!
If you have problem with access to site realestate, and domain realestate.co.nz is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).