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