The previous post about the down was on November 2021 so its been more than 2 years ago and NLNico is no longer active since October 2020. By this fact we can guess that his site started to off more than 3 years ago.
Strangely enough. Wayback machine was still able to scrape a working version of the website pretty recently -- June 23rd this year, see:
https://web.archive.org/web/20240623015447if_/https://dicesites.com/It's pretty obvious though that the website is abandoned because the long dead bitdice was still listed. Their domain is also set to expire in a couple of months:
Expires On: 2024-10-10