Cut-the-knot.org Interactive Mathematics Miscellany and Puzzles

An encyclopedic collection of math resources for all grades. Arithmetic games, problems, puzzles, and articles


Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.27 sec.
Last Checked: 04/27/2024

Cut-the-knot.org traffic volume is 6,826 unique daily visitors and their 8,873 pageviews. The web value rate of cut-the-knot.org is 159,344 USD. Each visitor makes around 1.39 page views on average.

By Alexa's traffic estimates cut-the-knot.org placed at 20,530 position over the world, while the largest amount of its visitors comes from United States, where it takes 35,698 place.

Perfect for cut-the-knot.org that their data center (provided by company company AS-26496-GO-DADDY-COM-LLC - GoDaddy.com, LLC, US) is located in United States, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by AS-26496-GO-DADDY-COM-LLC - GoDaddy.com, LLC, US.

Cut-the-knot.org registered under .ORG top-level domain. Check other websites in .ORG zone.

The last verification results, performed on (November 24, 2019) cut-the-knot.org show that cut-the-knot.org has an expired SSL certificate issued by GoDaddy.com, Inc. (expired on December 11, 2020). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by GoDaddy.com, Inc..

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust cut-the-knot.org is pretty a safe domain.

Relying Google MobileFriendly test cut-the-knot.org is well optimized for mobile and tablet devices.


Global Rank
83,151
Average Load Time
2.11sec
Links In Count
2,041
Website Value
$148,920

Overview
Last Updated: 04/27/2024
Overall result - cut-the-knot.org is safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton Connect Safe
Last Updated: 03/22/2024
cut-the-knot.org is safe.
Norton ConnectSafe evaluates cut-the-knot.org for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 02/13/2019
cut-the-knot.org is safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google Safe Browsing
Last Updated: 01/09/2019
cut-the-knot.org is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
Site Advisor
Last Updated: 02/22/2021
cut-the-knot.org is safe.
McAfee assesses cut-the-knot.org for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze cut-the-knot.org for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 01/09/2019
cut-the-knot.org child safety is very good.
The WOT calculates reputation of the cut-the-knot.org. This reputation system receives ratings from users and information from third-party sources, assesses the cut-the-knot.org for safety features and confirms, whether cut-the-knot.org is suitable for children.

SSL Information
Domaincut-the-knot.org
Issuer OrganizationGoDaddy.com, Inc.
IssuerGo Daddy Secure Certificate Authority - G2
AlgorithmRSA-SHA256
Valid form10/12/2019
Expiration12/11/2020
SignedCertificate is not self signed
Additional Domains cut-the-knot.org
www.cut-the-knot.org
Server Location

ASN Information

ASN ID: 26496
ASN Title: AS-26496-GO-DADDY-COM-LLC - GoDaddy.com, LLC, US

Last Update: 10/04/2023

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 26496
ASName: AS-26496-GO-DADDY-COM-LLC
ASHandle: AS26496
RegDate: 2002-10-01
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/26496


OrgName: GoDaddy.com, LLC
OrgId: GODAD
Address: 14455 N Hayden Road
Address: Suite 226
City: Scottsdale
StateProv: AZ
PostalCode: 85260
Country: US
RegDate: 2007-06-01
Updated: 2014-09-10
Comment: Please send abuse complaints to abuse@godaddy.com
Ref: https://rdap.arin.net/registry/entity/GODAD

OrgNOCHandle: NOC124-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-480-505-8809
OrgNOCEmail: noc@godaddy.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC124-ARIN

OrgAbuseHandle: ABUSE51-ARIN
OrgAbuseName: Abuse Department
OrgAbusePhone: +1-480-624-2505
OrgAbuseEmail: abuse@godaddy.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE51-ARIN

OrgTechHandle: NOC124-ARIN
OrgTechName: Network Operations Center
OrgTechPhone: +1-480-505-8809
OrgTechEmail: noc@godaddy.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOC124-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

WHOIS

Domain Name: CUT-THE-KNOT.ORG
Registry Domain ID: D79395063-LROR
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.whois.godaddy.com
Updated Date: 2019-02-02T00:21:36Z
Creation Date: 2001-11-06T20:05:04Z
Registry Expiry Date: 2021-11-06T20:05:04Z
Registrar Registration Expiration Date:
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Reseller:
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registrant Organization: Wolfram Foundation
Registrant State/Province: Illinois
Registrant Country: US
Name Server: NS55.DOMAINCONTROL.COM
Name Server: NS56.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2021-05-03T00:07:00Z


DNS Records
HostA RecordTTL
cut-the-knot.org107.180.50.22710800
HostMX RecordPriorityTTL
HostNS RecordTTL
cut-the-knot.orgns55.domaincontrol.com3600
cut-the-knot.orgns56.domaincontrol.com3600
HostTXT RecordTTL

ns55.domaincontrol.com
TTL: 3600
Email address: dns.jomax.net
Serial: 2018120301
Refresh: 28800
Retry: 7200
Expire: 604800
Minimum: 600


Errors
Warnings

Last tested: 11/20/2016

Desktop
Desktop Speed
83%

Desktop Resource Breakdown
Total Resources240
Number of Hosts90
Static Resources39
JavaScript Resources59
CSS Resources3

Last tested: 11/20/2016

Mobile
Mobile Usability
82%
Mobile Speed
63%

Mobile Resource Breakdown
Total Resources125
Number of Hosts46
Static Resources85
JavaScript Resources71
CSS Resources7
www.cut-the-knot.com
www.cut-the-knot.net
www.cut-the-knot.org
www.cut-the-knot.info
www.cut-the-knot.biz
www.cut-the-knot.us
www.cut-the-knot.mobi
www.ut-the-knot.org
www.cut-the-knot.org
www.xut-the-knot.org
www.cxut-the-knot.org
www.xcut-the-knot.org
www.dut-the-knot.org
www.cdut-the-knot.org
www.dcut-the-knot.org
www.fut-the-knot.org
www.cfut-the-knot.org
www.fcut-the-knot.org
www.vut-the-knot.org
www.cvut-the-knot.org
www.vcut-the-knot.org
www.ct-the-knot.org
www.cyt-the-knot.org
www.cuyt-the-knot.org
www.cyut-the-knot.org
www.cht-the-knot.org
www.cuht-the-knot.org
www.chut-the-knot.org
www.cjt-the-knot.org
www.cujt-the-knot.org
www.cjut-the-knot.org
www.cit-the-knot.org
www.cuit-the-knot.org
www.ciut-the-knot.org
www.cu-the-knot.org
www.cur-the-knot.org
www.cutr-the-knot.org
www.curt-the-knot.org
www.cuf-the-knot.org
www.cutf-the-knot.org
www.cuft-the-knot.org
www.cug-the-knot.org
www.cutg-the-knot.org
www.cugt-the-knot.org
www.cuy-the-knot.org
www.cuty-the-knot.org
www.cutthe-knot.org
www.cut-he-knot.org
www.cut-rhe-knot.org
www.cut-trhe-knot.org
www.cut-rthe-knot.org
www.cut-fhe-knot.org
www.cut-tfhe-knot.org
www.cut-fthe-knot.org
www.cut-ghe-knot.org
www.cut-tghe-knot.org
www.cut-gthe-knot.org
www.cut-yhe-knot.org
www.cut-tyhe-knot.org
www.cut-ythe-knot.org
www.cut-te-knot.org
www.cut-tbe-knot.org
www.cut-thbe-knot.org
www.cut-tbhe-knot.org
www.cut-tge-knot.org
www.cut-thge-knot.org
www.cut-tye-knot.org
www.cut-thye-knot.org
www.cut-tue-knot.org
www.cut-thue-knot.org
www.cut-tuhe-knot.org
www.cut-tje-knot.org
www.cut-thje-knot.org
www.cut-tjhe-knot.org
www.cut-tne-knot.org
www.cut-thne-knot.org
www.cut-tnhe-knot.org
www.cut-th-knot.org
www.cut-thw-knot.org
www.cut-thew-knot.org
www.cut-thwe-knot.org
www.cut-ths-knot.org
www.cut-thes-knot.org
www.cut-thse-knot.org
www.cut-thd-knot.org
www.cut-thed-knot.org
www.cut-thde-knot.org
www.cut-thr-knot.org
www.cut-ther-knot.org
www.cut-thre-knot.org
www.cut-theknot.org
www.cut-the-not.org
www.cut-the-jnot.org
www.cut-the-kjnot.org
www.cut-the-jknot.org
www.cut-the-inot.org
www.cut-the-kinot.org
www.cut-the-iknot.org
www.cut-the-mnot.org
www.cut-the-kmnot.org
www.cut-the-mknot.org
www.cut-the-lnot.org
www.cut-the-klnot.org
www.cut-the-lknot.org
www.cut-the-onot.org
www.cut-the-konot.org
www.cut-the-oknot.org
www.cut-the-kot.org
www.cut-the-kbot.org
www.cut-the-knbot.org
www.cut-the-kbnot.org
www.cut-the-khot.org
www.cut-the-knhot.org
www.cut-the-khnot.org
www.cut-the-kjot.org
www.cut-the-knjot.org
www.cut-the-kmot.org
www.cut-the-knmot.org
www.cut-the-knt.org
www.cut-the-knit.org
www.cut-the-knoit.org
www.cut-the-kniot.org
www.cut-the-knkt.org
www.cut-the-knokt.org
www.cut-the-knkot.org
www.cut-the-knlt.org
www.cut-the-knolt.org
www.cut-the-knlot.org
www.cut-the-knpt.org
www.cut-the-knopt.org
www.cut-the-knpot.org
www.cut-the-kno.org
www.cut-the-knor.org
www.cut-the-knotr.org
www.cut-the-knort.org
www.cut-the-knof.org
www.cut-the-knotf.org
www.cut-the-knoft.org
www.cut-the-knog.org
www.cut-the-knotg.org
www.cut-the-knogt.org
www.cut-the-knoy.org
www.cut-the-knoty.org
www.cut-the-knoyt.org