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