whois i-sumy.com/ru/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
i-sumy.com/ru/
checking....i-sumy.com/ru/
   $ whois i-sumy.com/ru/ (cached 03.07.25, 01:59:45)
No whois server is known for this kind of object.