whois www.extnoc.com/blog/network-monitoring-and-troubleshooting/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)

www.extnoc.com/blog/network-monitoring-and-troubleshooting/
checking....www.extnoc.com/blog/network-monitoring-and-troubleshooting/
   $ whois www.extnoc.com/blog/network-monitoring-and-troubleshooting/
No whois server is known for this kind of object.