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