🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`professorquiz.com`

DNSSEC	⚠️ Not signed
A	13.248.213.45^{🇺🇸 Amazon13.248.208.0/20}
		PTR	`a67c48129651a0940.awsglobalaccelerator.com`
A	76.223.67.189^{🇺🇸 Amazon76.223.64.0/20}
NS	`ns75.domaincontrol.com` ⭐
		A	2603:5:21b4::30^{🇺🇸 GODADDY-DNS2603:5:21b0::/44}
			PTR	`ns75.domaincontrol.com`
		A	97.74.107.48^{🇺🇸 GODADDY-DNS97.74.106.0/23}
			PTR	`ns75.domaincontrol.com`
NS	`ns76.domaincontrol.com`
		A	2603:5:22b4::30^{🇺🇸 GODADDY-DNS2603:5:22b0::/44}
			PTR	`ns76.domaincontrol.com`
		A	173.201.75.48^{🇺🇸 GODADDY-DNS173.201.74.0/23}
			PTR	`ns76.domaincontrol.com`
SOA	`ns75.domaincontrol.com`dns@jomax.net 2025-01-01 #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=1786777404

Previously MX for

professorquiz.com

Subdomains

www.professorquiz.com

Same first word

professorquiz.com

DNS History

10 records (4 active, 6 former)

○NSns1009.hostgator.com2015-06-23 → 2015-10-31 · 4 obs

● 2015-06-23 23:42:20
● 2015-10-31 14:45:38
○ 2026-07-17 10:49:08
○ 2026-08-15 07:20:14

○NSns1010.hostgator.com2015-06-23 → 2015-10-31 · 4 obs

● 2015-06-23 23:42:20
● 2015-10-31 14:45:38
○ 2026-07-17 10:49:08
○ 2026-08-15 07:20:14

●NSns75.domaincontrol.com2026-07-17 → 2026-08-15 · 3 obs

○ 2015-10-31 14:45:38
● 2026-07-17 10:49:08
● 2026-08-15 07:20:14

●NSns76.domaincontrol.com2026-07-17 → 2026-08-15 · 3 obs

○ 2015-10-31 14:45:38
● 2026-07-17 10:49:08
● 2026-08-15 07:20:14

○NSns8023.hostgator.com2015-06-23 → 2015-10-31 · 4 obs

● 2015-06-23 23:42:20
● 2015-10-31 14:45:38
○ 2026-07-17 10:49:08
○ 2026-08-15 07:20:14

○MXprofessorquiz.com2015-06-23 → 2015-10-31 · 4 obs

● 2015-06-23 23:42:20
● 2015-10-31 14:45:38
○ 2026-07-17 10:49:08
○ 2026-08-15 07:20:14

●A13.248.213.452026-07-17 → 2026-08-15 · 3 obs

○ 2018-06-26 12:13:02
● 2026-07-17 10:49:08
● 2026-08-15 07:20:14

○A192.185.17.1032015-06-23 → 2015-10-31 · 4 obs

● 2015-06-23 23:42:20
● 2015-10-31 14:45:38
○ 2016-01-23 20:12:16
○ 2026-08-15 07:20:14

○A192.185.4.232016-01-23 → 2018-06-26 · 5 obs

○ 2015-10-31 14:45:38
● 2016-01-23 20:12:16
● 2018-06-26 12:13:02
○ 2026-07-17 10:49:08
○ 2026-08-15 07:20:14

●A76.223.67.1892026-07-17 → 2026-08-15 · 3 obs

○ 2018-06-26 12:13:02
● 2026-07-17 10:49:08
● 2026-08-15 07:20:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net...	-
professorquiz.com	ns75.domaincontrol.com, ns76.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.107.48

NS records: ns75.domaincontrol.com, ns76.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for professorquiz.com (unsigned zone)

⏱️ Timing

Total: 112ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.67.189, 13.248.213.45`
NS	2	`ns75.domaincontrol.com, ns76.domaincontrol.com`
SOA	1	`ns75.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns75.domaincontrol.com, ns75.domaincontrol.com, ns76.domaincontrol.com...)

Analysis

Hierarchy

The domain www.professorquiz.com falls under the parent professorquiz.com.

IP Addresses

professorquiz.com has two IP addresses: 13.248.213.45 and 76.223.67.189

Additional host names — trexone.com, regency-payment.com, tugova.com and two others — share IP numbers with professorquiz.com.

Name Servers

DNS delegation for professorquiz.com points to two name servers: ns75.domaincontrol.com and ns76.domaincontrol.com.

professorquiz.com shares its name server setup with other domains, including emacton.com, swijabi.com, rentsmartrto.com and two others.

professorquiz.com has some name servers in common with other domains such as blackwattledeli.com.au, focusdev.com and net1.co.th

ns75.domaincontrol.com directs to 97.74.107.48 and 2603:5:21b4::30. ns76.domaincontrol.com directs to 173.201.75.48 and 2603:5:22b4::30. Each host name carries two IP addresses.

professorquiz.com - robtex.com