🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`knowstudy.com`

DNSSEC	⚠️ Not signed
A	3.33.130.190^{🇺🇸 Amazon3.33.128.0/20}
		PTR	`a2aa9ff50de748dbe.awsglobalaccelerator.com`
A	15.197.148.33^{🇺🇸 Amazon15.197.144.0/20}
NS	`ns65.domaincontrol.com` ⭐
		A	2603:5:2164::2b^{🇺🇸 GODADDY-DNS2603:5:2160::/44}
			PTR	`ns65.domaincontrol.com`
		A	97.74.102.43^{🇺🇸 GODADDY-DNS97.74.102.0/23}
			PTR	`ns65.domaincontrol.com`
NS	`ns66.domaincontrol.com`
		A	2603:5:2264::2b^{🇺🇸 GODADDY-DNS2603:5:2260::/44}
			PTR	`ns66.domaincontrol.com`
		A	173.201.70.43^{🇺🇸 GODADDY-DNS173.201.70.0/23}
			PTR	`ns66.domaincontrol.com`
SOA	`ns65.domaincontrol.com`dns@jomax.net 2023-09-19 #0

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1790459189

Previously NS for

knowstudy.com

Previously MX for

knowstudy.com

Same first word

knowstudy.com

Similar names

studyknow.com

Previous names

Next names

DNS History

20 records (4 active, 16 former)

○NSknowstudy.com2017-11-18 → 2017-11-18 · 4 obs

○ 2016-09-17 22:39:16
● 2017-11-18 12:54:06
○ 2026-08-23 00:18:32
○ 2026-09-26 22:15:28

○NSns1.expiereddnsmanager.com2017-11-18 → 2017-11-18 · 4 obs

○ 2016-09-17 22:39:16
● 2017-11-18 12:54:06
○ 2026-08-23 00:18:32
○ 2026-09-26 22:15:28

○NSns1.servers800.com2016-03-23 → 2016-09-17 · 5 obs

○ 2015-12-24 05:51:28
● 2016-03-23 13:20:24
● 2016-09-17 22:39:16
○ 2017-11-18 12:54:06
○ 2026-09-26 22:15:28

○NSns2.expiereddnsmanager.com2017-11-18 → 2017-11-18 · 4 obs

○ 2016-09-17 22:39:16
● 2017-11-18 12:54:06
○ 2026-08-23 00:18:32
○ 2026-09-26 22:15:28

○NSns2.servers800.com2016-03-23 → 2016-09-17 · 5 obs

○ 2015-12-24 05:51:28
● 2016-03-23 13:20:24
● 2016-09-17 22:39:16
○ 2017-11-18 12:54:06
○ 2026-09-26 22:15:28

○NSns23.domaincontrol.com2015-10-23 → 2015-12-24 · 4 obs

● 2015-10-23 08:57:28
● 2015-12-24 05:51:28
○ 2016-03-23 13:20:24
○ 2026-09-26 22:15:28

○NSns24.domaincontrol.com2015-10-23 → 2015-12-24 · 4 obs

● 2015-10-23 08:57:28
● 2015-12-24 05:51:28
○ 2016-03-23 13:20:24
○ 2026-09-26 22:15:28

●NSns65.domaincontrol.com2026-08-23 → 2026-09-26 · 3 obs

○ 2017-11-18 12:54:06
● 2026-08-23 00:18:32
● 2026-09-26 22:15:28

●NSns66.domaincontrol.com2026-08-23 → 2026-09-26 · 3 obs

○ 2017-11-18 12:54:06
● 2026-08-23 00:18:32
● 2026-09-26 22:15:28

○MXknowstudy.com2016-03-23 → 2016-09-17 · 5 obs

○ 2015-12-24 05:51:28
● 2016-03-23 13:20:24
● 2016-09-17 22:39:16
○ 2017-11-18 12:54:06
○ 2026-09-26 22:15:28

○MXmail.knowstudy.com2015-10-23 → 2015-12-24 · 4 obs

● 2015-10-23 08:57:28
● 2015-12-24 05:51:28
○ 2016-03-23 13:20:24
○ 2026-09-26 22:15:28

○MXmx7.knowstudy.com2017-11-18 → 2017-11-18 · 4 obs

○ 2016-09-17 22:39:16
● 2017-11-18 12:54:06
○ 2026-08-23 00:18:32
○ 2026-09-26 22:15:28

●A15.197.148.332026-08-23 → 2026-09-26 · 3 obs

○ 2017-11-18 12:54:06
● 2026-08-23 00:18:32
● 2026-09-26 22:15:28

○A173.239.5.62017-11-18 → 2017-11-18 · 4 obs

○ 2016-09-17 22:39:16
● 2017-11-18 12:54:06
○ 2026-08-23 00:18:32
○ 2026-09-26 22:15:28

○A173.239.8.1642017-11-18 → 2017-11-18 · 4 obs

○ 2016-09-17 22:39:16
● 2017-11-18 12:54:06
○ 2026-08-23 00:18:32
○ 2026-09-26 22:15:28

○A192.186.192.972015-10-23 → 2015-12-24 · 4 obs

● 2015-10-23 08:57:28
● 2015-12-24 05:51:28
○ 2016-03-23 13:20:24
○ 2026-09-26 22:15:28

○A213.247.47.1902017-11-18 → 2017-11-18 · 4 obs

○ 2016-09-17 22:39:16
● 2017-11-18 12:54:06
○ 2026-08-23 00:18:32
○ 2026-09-26 22:15:28

●A3.33.130.1902026-08-23 → 2026-09-26 · 3 obs

○ 2017-11-18 12:54:06
● 2026-08-23 00:18:32
● 2026-09-26 22:15:28

○A67.227.155.1262016-09-17 → 2016-09-17 · 4 obs

○ 2016-03-23 13:20:24
● 2016-09-17 22:39:16
○ 2017-11-18 12:54:06
○ 2026-09-26 22:15:28

○A69.16.244.792016-03-23 → 2016-03-23 · 4 obs

○ 2015-12-24 05:51:28
● 2016-03-23 13:20:24
○ 2016-09-17 22:39:16
○ 2026-09-26 22:15:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net...	-
knowstudy.com	ns66.domaincontrol.com, ns65.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.70.43

NS records: ns66.domaincontrol.com, ns65.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowstudy.com (unsigned zone)

⏱️ Timing

Total: 1274ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`3.33.130.190, 15.197.148.33`
NS	2	`ns65.domaincontrol.com, ns66.domaincontrol.com`
SOA	1	`ns65.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns66.domaincontrol.com, ns66.domaincontrol.com, ns65.domaincontrol.com...)

Analysis

IP Addresses

knowstudy.com resolves to the IP addresses 3.33.130.190 and 15.197.148.33

cultureprofile.guru, riskdna360.com, studiolluna.com plus two other host names have IP numbers in common with knowstudy.com.

Name Servers

DNS delegation for knowstudy.com points to two name servers: ns65.domaincontrol.com and ns66.domaincontrol.com.

The name server configuration of knowstudy.com is shared with other domains, for instance alwaysclosing4u.com, letssmokebbq.shop, oldtracegardens.com and two others.

ns65.domaincontrol.com directs to 97.74.102.43 and 2603:5:2164::2b. ns66.domaincontrol.com directs to 173.201.70.43 and 2603:5:2264::2b. Each host name carries two IP addresses.

knowstudy.com - robtex.com

knowstudy.com

com

Previously NS for

Previously MX for

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`knowstudy.com`

`com`