thinkhct.com - dns.ninja

`thinkhct.com`

DNSSEC	⚠️ Not signed
A	3.33.251.168^{🇺🇸 Amazon3.33.240.0/20}
		PTR	`aec037177372cc6cd.awsglobalaccelerator.com`
A	15.197.225.128^{🇺🇸 Amazon15.197.224.0/20}
NS	`ns77.domaincontrol.com` ⭐
		A	2603:5:21c4::31^{🇺🇸 GODADDY-DNS2603:5:21c0::/44}
			PTR	`ns77.domaincontrol.com`
		A	97.74.108.49^{🇺🇸 GODADDY-DNS97.74.108.0/23}
			PTR	`ns77.domaincontrol.com`
NS	`ns78.domaincontrol.com`
		A	2603:5:22c4::31^{🇺🇸 GODADDY-DNS2603:5:22c0::/44}
			PTR	`ns78.domaincontrol.com`
		A	173.201.76.49^{🇺🇸 GODADDY-DNS173.201.76.0/23}
			PTR	`ns78.domaincontrol.com`
MX	`d284451a.ess.barracudanetworks.com` ⭐
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
MX	`d284451b.ess.barracudanetworks.com`⁽²⁰⁾
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
TXT	`google-site-verification=Sjj8qsNu3L5M0HNZOGyOY02rdBh5VAYnK9nWkgvPj2c`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.c...`
TXT	`MS=ms30685078`
SOA	`ns77.domaincontrol.com`dns@jomax.net 2026-06-27 #1

`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=1783239661

Same first word

thinkhct.com

DNS History

11 records (6 active, 5 former)

●NSns77.domaincontrol.com2015-06-25 → 2026-07-05 · 2 obs

● 2015-06-25 03:49:10
● 2026-07-05 08:38:44

●NSns78.domaincontrol.com2015-06-25 → 2026-07-05 · 2 obs

● 2015-06-25 03:49:10
● 2026-07-05 08:38:44

●MXd284451a.ess.barracudanetworks.com2026-03-23 → 2026-07-05 · 3 obs

○ 2020-01-27 01:16:40
● 2026-03-23 16:12:04
● 2026-07-05 08:38:44

●MXd284451b.ess.barracudanetworks.com2026-03-23 → 2026-07-05 · 3 obs

○ 2020-01-27 01:16:40
● 2026-03-23 16:12:04
● 2026-07-05 08:38:44

○MXd50017a.ess.barracudanetworks.com2015-06-25 → 2015-12-10 · 4 obs

● 2015-06-25 03:49:10
● 2015-12-10 09:21:36
○ 2016-03-14 11:36:04
○ 2026-07-05 08:38:44

○MXd50017b.ess.barracudanetworks.com2015-06-25 → 2015-12-10 · 4 obs

● 2015-06-25 03:49:10
● 2015-12-10 09:21:36
○ 2016-03-14 11:36:04
○ 2026-07-05 08:38:44

○MXthinkhct-com.mail.protection.outlook.com2016-03-14 → 2020-01-27 · 5 obs

○ 2015-12-10 09:21:36
● 2016-03-14 11:36:04
● 2020-01-27 01:16:40
○ 2026-03-23 16:12:04
○ 2026-07-05 08:38:44

○A129.121.15.422016-03-14 → 2020-01-27 · 5 obs

○ 2015-12-10 09:21:36
● 2016-03-14 11:36:04
● 2020-01-27 01:16:40
○ 2026-03-23 16:12:04
○ 2026-07-05 08:38:44

●A15.197.225.1282026-03-23 → 2026-07-05 · 3 obs

○ 2020-01-27 01:16:40
● 2026-03-23 16:12:04
● 2026-07-05 08:38:44

○A184.169.135.552015-06-25 → 2015-12-10 · 4 obs

● 2015-06-25 03:49:10
● 2015-12-10 09:21:36
○ 2016-03-14 11:36:04
○ 2026-07-05 08:38:44

●A3.33.251.1682026-03-23 → 2026-07-05 · 3 obs

○ 2020-01-27 01:16:40
● 2026-03-23 16:12:04
● 2026-07-05 08:38:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net...	-
thinkhct.com	ns77.domaincontrol.com, ns78.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.76.49

NS records: ns77.domaincontrol.com, ns78.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thinkhct.com (unsigned zone)

⏱️ Timing

Total: 474ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`3.33.251.168, 15.197.225.128`
NS	2	`ns77.domaincontrol.com, ns78.domaincontrol.com`
MX	2	`d284451b.ess.barracudanetworks.com (pri:, d284451a.ess.barracudanetworks.com (pri:`
TXT	3	`google-site-verification=Sjj8qsNu3L5M0HN, v=spf1 include:spf.protection.outlook.co...`
SOA	1	`ns77.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns77.domaincontrol.com, ns77.domaincontrol.com, ns78.domaincontrol.com...)

Analysis

IP Addresses

thinkhct.com points to the IP addresses 3.33.251.168 and 15.197.225.128

Among the host names that share IP numbers with thinkhct.com are calaisimmo.com, theamericanpitbull.com, josecastaneda.com and two others.

Name Servers

DNS delegation for thinkhct.com points to two name servers: ns77.domaincontrol.com and ns78.domaincontrol.com.

thinkhct.com has the same name server delegation as a number of other domains, such as eagles-consulting.com, merkezbazar.com, foodhandlerofcalifornia.com and two more.

thinkhct.com has partial name server overlap with other domains, including braziliandiploma.com.

ns77.domaincontrol.com directs to 97.74.108.49 and 2603:5:21c4::31. ns78.domaincontrol.com directs to 173.201.76.49 and 2603:5:22c4::31. Each host name carries two IP addresses.

Mail Servers

The MX records for thinkhct.com point to two mail servers: d284451a.ess.barracudanetworks.com and d284451b.ess.barracudanetworks.com.

d284451a.ess.barracudanetworks.com resolves to 209.222.82.252, 209.222.82.253 and 209.222.82.255; d284451b.ess.barracudanetworks.com resolves to those same three IP addresses.

Host names pointing to 209.222.82.252 IP addresses: d284451a.ess.barracudanetworks.com and d284451b.ess.barracudanetworks.com.

Host names pointing to 209.222.82.253 IP addresses: d284451a.ess.barracudanetworks.com and d284451b.ess.barracudanetworks.com.

Host names pointing to 209.222.82.255 IP addresses: d284451a.ess.barracudanetworks.com and d284451b.ess.barracudanetworks.com.