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