`57tcu.com`

DNSSEC	⚠️ Not signed
NS	`edns152.ultradns.com` ⭐ ⚠️ Not in parent delegation
		A	2001:502:f3ff::298^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`edns152.ultradns.com`
		A	204.74.66.152^{🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar}
			PTR	`edns152.ultradns.com`
NS	`edns152.ultradns.biz` ⚠️ Not in parent delegation
		A	2610:a1:1015::298^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`edns152.ultradns.biz`
		A	204.74.67.152^{🇺🇸 MAINT-ID-12008204.74.67.0/24 Neustar}
			PTR	`edns152.ultradns.biz`
NS	`edns152.ultradns.net` ⚠️ Not in parent delegation
		A	2610:a1:1014::298^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`edns152.ultradns.net`
		A	204.74.110.152^{🇺🇸 MAINT-ID-12008204.74.110.0/24 Neustar}
			PTR	`edns152.ultradns.net`
NS	`edns152.ultradns.org` ⚠️ Not in parent delegation
		A	2001:502:4612::298^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`edns152.ultradns.org`
		A	204.74.111.152^{🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar}
			PTR	`edns152.ultradns.org`
NS	`pdns104.ultradns.biz` ⚠️ Not in zone NS records
		A	2610:a1:1015::8c^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns104.ultradns.biz`
		A	156.154.66.104^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns104.ultradns.biz`
NS	`pdns104.ultradns.com` ⚠️ Not in zone NS records
		A	2001:502:f3ff::8c^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns104.ultradns.com`
		A	156.154.64.104^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns104.ultradns.com`
NS	`pdns104.ultradns.net` ⚠️ Not in zone NS records
		A	2610:a1:1014::8c^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns104.ultradns.net`
		A	156.154.65.104^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns104.ultradns.net`
NS	`pdns104.ultradns.org` ⚠️ Not in zone NS records
		A	2001:502:4612::8c^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns104.ultradns.org`
		A	156.154.67.104^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns104.ultradns.org`
SOA	`edns152.ultradns.com`mayamai1241@gmail.com 2022-11-27 #25

`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=1785415027

Same first word

57tcu.com

DNS History

8 records (8 active, 0 former)

●NSedns152.ultradns.biz2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

●NSedns152.ultradns.com2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

●NSedns152.ultradns.net2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

●NSedns152.ultradns.org2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

●NSpdns104.ultradns.biz2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

●NSpdns104.ultradns.com2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

●NSpdns104.ultradns.net2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

●NSpdns104.ultradns.org2026-03-07 → 2026-07-30 · 2 obs

● 2026-03-07 05:31:56
● 2026-07-30 12:55:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net...	-
57tcu.com	pdns104.ultradns.net, pdns104.ultradns.com, pdns104.ultradns.biz, pdns104.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.65.104

NS records: pdns104.ultradns.net, pdns104.ultradns.com, pdns104.ultradns.biz, pdns104.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 57tcu.com (unsigned zone)

⏱️ Timing

Total: 328ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`edns152.ultradns.biz, edns152.ultradns.com...`
SOA	1	`edns152.ultradns.com mayamai1241.gmail.c`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns104.ultradns.com, pdns104.ultradns.com)

Analysis

Name Servers

57tcu.com delegates authority to 8 name servers: edns152.ultradns.biz, pdns104.ultradns.biz, edns152.ultradns.com plus 5 other.

The name servers of 57tcu.com overlap at least partially with those of other domains — among them 252.40.198.in-addr.arpa, icew.ca, 2297ky.com and two more.

These name servers commonly appear in delegations together with pdns104.ultradns.com, pdns104.ultradns.net, pdns104.ultradns.org and 7 other.

Host names that have two IP addresses:

edns152.ultradns.biz directs traffic to 204.74.67.152 and 2610:a1:1015::298.

pdns104.ultradns.biz directs traffic to 156.154.66.104 and 2610:a1:1015::8c.

edns152.ultradns.com directs traffic to 204.74.66.152 and 2001:502:f3ff::298.

pdns104.ultradns.com directs traffic to 156.154.64.104 and 2001:502:f3ff::8c.

edns152.ultradns.net directs traffic to 204.74.110.152 and 2610:a1:1014::298.

pdns104.ultradns.net directs traffic to 156.154.65.104 and 2610:a1:1014::8c.

edns152.ultradns.org directs traffic to 204.74.111.152 and 2001:502:4612::298.

pdns104.ultradns.org directs traffic to 156.154.67.104 and 2001:502:4612::8c.