`professorscu.com`

DNSSEC	⚠️ Not signed
A	35.172.94.1^{🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix}
		PTR	`staticip.multiscreensite.com`
NS	`ns1.systemdns.com` ⭐
		A	2604:4000:0:d:216:40:47:90^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`ns1.systemdns.com`
		A	216.40.47.90^{🇨🇦 TUCOWS216.40.47.0/24 -BRA-BLK1.4/NET-216-40-47-0}
			PTR	`ns1.systemdns.com`
NS	`ns2.systemdns.com`
		A	2604:4000:2800:d:64:99:148:16^{🇨🇦 TUCOWS-32604:4000:2800::/37 Tucows.com Co.}
			PTR	`ns2.systemdns.com`
		A	64.98.148.16^{🇨🇦 TUCOWS-364.98.144.0/20 Tucows.com Co.}
			PTR	`ns2.systemdns.com`
NS	`ns3.systemdns.com`
		A	2604:4000:0:d:64:99:96:36^{🇨🇦 TUCOWS2604:4000::/48 -BRA-IPV6-BLK1.1/NET-2604:4000}
			PTR	`ns3.systemdns.com`
		A	64.99.96.36^{🇨🇦 TUCOWS64.99.96.0/24 -BRA-BLK2.7.2}
			PTR	`ns3.systemdns.com`
MX	`mx.professorscu.com.cust.b.hostedemail.com` ⭐
		A	64.98.38.4^{🇨🇦 TUCOWS-364.98.38.0/24 IPv4 Allow}
			PTR	`mx.b.hostedemail.com`
TXT	`v=spf1 include:_spf.hostedemail.com ~all`
SOA	`ns1.systemdns.com`hostmaster@systemdns.com serial=1733236766

`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=1785143657

Same first word

professorscu.com

Similar names

uscprofessor.com

DNS History

5 records (5 active, 0 former)

●NSns1.systemdns.com2026-04-21 → 2026-07-27 · 2 obs

● 2026-04-21 14:25:28
● 2026-07-27 09:40:06

●NSns2.systemdns.com2026-04-21 → 2026-07-27 · 2 obs

● 2026-04-21 14:25:28
● 2026-07-27 09:40:06

●NSns3.systemdns.com2026-04-21 → 2026-07-27 · 2 obs

● 2026-04-21 14:25:28
● 2026-07-27 09:40:06

●MXmx.professorscu.com.cust.b.hostedemail.com2026-04-21 → 2026-07-27 · 2 obs

● 2026-04-21 14:25:28
● 2026-07-27 09:40:06

●A35.172.94.12026-04-21 → 2026-07-27 · 2 obs

● 2026-04-21 14:25:28
● 2026-07-27 09:40:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net...	-
professorscu.com	ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com	6 records

✅ Authoritative Response

Server:216.40.47.90

NS records: ns1.systemdns.com, ns2.systemdns.com, ns3.systemdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for professorscu.com (unsigned zone)

⏱️ Timing

Total: 403ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.172.94.1`
NS	3	`ns3.systemdns.com, ns1.systemdns.com...`
MX	1	`mx.professorscu.com.cust.b.hostedemail.c`
TXT	1	`v=spf1 include:_spf.hostedemail.com ~all`
SOA	1	`ns1.systemdns.com hostmaster.systemdns.c`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.systemdns.com, ns1.systemdns.com, ns2.systemdns.com...)

Analysis

IP Addresses

professorscu.com points to a single IP number: 35.172.94.1.

Additional host names — cmingenieria.net, nasi-tm.com, nickyovermanswindowco.com and two others — share IP numbers with professorscu.com.

Name Servers

professorscu.com carries NS records delegating to ns1.systemdns.com, ns2.systemdns.com and ns3.systemdns.com.

The name servers of professorscu.com overlap at least partially with those of other domains — among them thedaltons.net, fuseevents.org, hdescapes.com and two more.

ns1.systemdns.com, ns2.systemdns.com and ns3.systemdns.com are three hostnames that each resolve to a pair of IP addresses: ns1.systemdns.com to 216.40.47.90 and 2604:4000:0:d:216:40:47:90, ns2.systemdns.com to 64.98.148.16 and 2604:4000:2800:d:64:99:148:16, and ns3.systemdns.com to 64.99.96.36 and 2604:4000:0:d:64:99:96:36.

Mail Servers

professorscu.com has one mail server: mx.professorscu.com.cust.b.hostedemail.com.

mx.professorscu.com.cust.b.hostedemail.com carries a single IP number, which is 64.98.38.4.

professorscu.com - robtex.com