`ptcbcourse.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	`ns29.domaincontrol.com` ⭐
		A	2603:5:2181::f^{🇺🇸 GODADDY-DNS2603:5:2180::/44}
			PTR	`ns29.domaincontrol.com`
		A	97.74.104.15^{🇺🇸 GODADDY-DNS97.74.104.0/23}
			PTR	`ip-97-74-104-15.defastlink.net`
NS	`ns30.domaincontrol.com`
		A	2603:5:2281::f^{🇺🇸 GODADDY-DNS2603:5:2280::/44}
			PTR	`ns30.domaincontrol.com`
		A	173.201.72.15^{🇺🇸 GODADDY-DNS173.201.72.0/23}
			PTR	`ns30.domaincontrol.com`
SOA	`ns29.domaincontrol.com`dns@jomax.net 2026-03-30 #3

`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=1778402776

Same first word

ptcbcourse.com

DNS History

5 records (4 active, 1 former)

●NSns29.domaincontrol.com2018-07-22 → 2026-05-10 · 2 obs

● 2018-07-22 18:31:26
● 2026-05-10 08:51:42

●NSns30.domaincontrol.com2018-07-22 → 2026-05-10 · 2 obs

● 2018-07-22 18:31:26
● 2026-05-10 08:51:42

●A15.197.225.1282026-04-01 → 2026-05-10 · 3 obs

○ 2018-07-22 18:31:26
● 2026-04-01 05:25:54
● 2026-05-10 08:51:42

●A3.33.251.1682026-04-01 → 2026-05-10 · 3 obs

○ 2018-07-22 18:31:26
● 2026-04-01 05:25:54
● 2026-05-10 08:51:42

○A50.62.194.302018-07-22 → 2018-07-22 · 3 obs

● 2018-07-22 18:31:26
○ 2026-04-01 05:25:54
○ 2026-05-10 08:51:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net...	-
ptcbcourse.com	ns29.domaincontrol.com, ns30.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.72.15

NS records: ns29.domaincontrol.com, ns30.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ptcbcourse.com (unsigned zone)

⏱️ Timing

Total: 431ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`15.197.225.128, 3.33.251.168`
NS	2	`ns29.domaincontrol.com, ns30.domaincontrol.com`
SOA	1	`ns29.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns29.domaincontrol.com, ns29.domaincontrol.com, ns30.domaincontrol.com...)

Analysis

IP Addresses

ptcbcourse.com points to two IP numbers: 3.33.251.168 and 15.197.225.128.

Other host names such as drmemu.com, fiber.guide, foodtrucksdfw.com, biamattress.org and wonup.it share IP numbers with ptcbcourse.com.

Name Servers

ptcbcourse.com is delegated to two name servers: ns29.domaincontrol.com and ns30.domaincontrol.com.

ptcbcourse.com uses the same name server setup as other domains, including aoxiu.net, nevadanaturalselections.com, cpaconstruction.com, clinicasantamaria.us and desiretobewell.com.

Host names with two IP numbers:

ns29.domaincontrol.com points to 2603:5:2181::f and 97.74.104.15.

ns30.domaincontrol.com points to 2603:5:2281::f and 173.201.72.15.

ptcbcourse.com - robtex.com

ptcbcourse.com

com