From Russia with DDOS

DDOS as a service: https://www.ez-ddos.com/

For just $50/day, Russians promise to take down any site.

Another one of Russian services is attacking the site through Spamvertising it:
https://en.wikipedia.org/wiki/Spamvertising

Most legitimate website providers do not tolerate this practice and will delete any site that has been spamvertised.

so don't mess with Russians, because they can easily kill your domain name forever.