Domain Name: cut-the-knot.org
Registry Domain ID: D79395063-LROR
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2018-12-03T02:41:59Z
Creation Date: 2001-11-06T20:05:04Z
Registrar Registration Expiration Date: 2021-11-06T20:05:04Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited http://www.icann.org/epp#clientUpdateProhibited
Domain Status: clientRenewProhibited http://www.icann.org/epp#clientRenewProhibited
Domain Status: clientDeleteProhibited http://www.icann.org/epp#clientDeleteProhibited
Registrant Organization: Wolfram Foundation
Registrant State/Province: Illinois
Registrant Country: US
Registrant Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=cut-the-knot.org
Admin Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=cut-the-knot.org
Tech Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=cut-the-knot.org
Name Server: NS55.DOMAINCONTROL.COM
Name Server: NS56.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2020-01-03T14:00:00Z <<<

Notes: 

IMPORTANT: Port43 will provide the ICANN-required minimum data set per 
ICANN Temporary Specification, adopted 17 May 2018. 
Visit https://whois.godaddy.com to look up contact data for domains 
not covered by GDPR policy.