`internalbrief.com`

DNSSEC	⚠️ Not signed
NS	`pdns73.ultradns.biz` ⚠️ Not in zone NS records
		A	2610:a1:1015::6d^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns73.ultradns.biz`
		A	156.154.66.73^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns73.ultradns.biz`
NS	`pdns73.ultradns.co.uk` ⚠️ Not in zone NS records
		A	2610:a1:1017::6d^{🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar}
			PTR	`pdns73.ultradns.co.uk`
		A	156.154.69.73^{🇺🇸 MAINT-ID-12008156.154.69.0/24 Neustar}
			PTR	`pdns73.ultradns.co.uk`
NS	`pdns73.ultradns.com` ⚠️ Not in zone NS records
		A	2001:502:f3ff::6d^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns73.ultradns.com`
		A	156.154.64.73^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns73.ultradns.com`
NS	`pdns73.ultradns.info` ⚠️ Not in zone NS records
		A	2610:a1:1016::6d^{🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar}
			PTR	`pdns73.ultradns.info`
		A	156.154.68.73^{🇺🇸 MAINT-ID-12008156.154.68.0/24 Neustar}
			PTR	`pdns73.ultradns.info`
NS	`pdns73.ultradns.net` ⚠️ Not in zone NS records
		A	2610:a1:1014::6d^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns73.ultradns.net`
		A	156.154.65.73^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns73.ultradns.net`
NS	`pdns73.ultradns.org` ⚠️ Not in zone NS records
		A	2001:502:4612::6d^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns73.ultradns.org`
		A	156.154.67.73^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns73.ultradns.org`

`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=1785839197

⚠️ On DNS blocklist: pro.plus, tif, tif.medium, ultimate

Same first word

internalbrief.com

DNS History

14 records (6 active, 8 former)

○NSns77.domaincontrol.com2015-08-05 → 2015-08-05 · 3 obs

● 2015-08-05 03:39:34
○ 2015-11-28 02:46:04
○ 2026-08-04 10:50:08

○NSns78.domaincontrol.com2015-08-05 → 2015-08-05 · 3 obs

● 2015-08-05 03:39:34
○ 2015-11-28 02:46:04
○ 2026-08-04 10:50:08

●NSpdns73.ultradns.biz2026-04-04 → 2026-08-04 · 3 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-08-04 10:50:08

●NSpdns73.ultradns.co.uk2026-04-04 → 2026-08-04 · 3 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-08-04 10:50:08

●NSpdns73.ultradns.com2026-04-04 → 2026-08-04 · 3 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-08-04 10:50:08

●NSpdns73.ultradns.info2026-04-04 → 2026-08-04 · 3 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-08-04 10:50:08

●NSpdns73.ultradns.net2026-04-04 → 2026-08-04 · 3 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-08-04 10:50:08

●NSpdns73.ultradns.org2026-04-04 → 2026-08-04 · 3 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-08-04 10:50:08

○MXmail2026-04-04 → 2026-05-03 · 5 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-05-03 23:23:54
○ 2026-05-12 17:18:42
○ 2026-08-04 10:50:08

○MXmailstore1.secureserver.net2015-08-05 → 2015-08-05 · 3 obs

● 2015-08-05 03:39:34
○ 2015-11-28 02:46:04
○ 2026-08-04 10:50:08

○MXsmtp.secureserver.net2015-08-05 → 2015-08-05 · 3 obs

● 2015-08-05 03:39:34
○ 2015-11-28 02:46:04
○ 2026-08-04 10:50:08

○A208.88.225.1172026-04-04 → 2026-05-03 · 5 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-05-03 23:23:54
○ 2026-05-12 17:18:42
○ 2026-08-04 10:50:08

○A2607:fbe0:1:42::1a2026-04-04 → 2026-05-03 · 5 obs

○ 2015-11-28 02:46:04
● 2026-04-04 03:46:34
● 2026-05-03 23:23:54
○ 2026-05-12 17:18:42
○ 2026-08-04 10:50:08

○A97.74.215.122015-08-05 → 2015-08-05 · 3 obs

● 2015-08-05 03:39:34
○ 2015-11-28 02:46:04
○ 2026-08-04 10:50:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
internalbrief.com	pdns73.ultradns.info, pdns73.ultradns.co.uk, pdns73.ultradns.net, pdns73.ultradns.com...	2 records

✅ Authoritative Response

Server:156.154.66.73

NS records: pdns73.ultradns.info, pdns73.ultradns.co.uk, pdns73.ultradns.net, pdns73.ultradns.com, pdns73.ultradns.org, pdns73.ultradns.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for internalbrief.com (unsigned zone)

⏱️ Timing

Total: 332ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns73.ultradns.com, pdns73.ultradns.com)

Analysis

Name Servers

internalbrief.com delegates authority to 6 name servers: pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.info plus 3 other.

At least some of internalbrief.com's name servers are shared with other domains, for example theksbwchannel8.com, seventeenmagazine.asia, tepid-permission.com and two more.

It is common for these name servers to be used in conjunction with the name servers pdns73.ultradns.net, pdns73.ultradns.org and pdns73.ultradns.co.uk.

Host names that have two IP addresses:

pdns73.ultradns.biz directs traffic to 156.154.66.73 and 2610:a1:1015::6d.

pdns73.ultradns.com directs traffic to 156.154.64.73 and 2001:502:f3ff::6d.

pdns73.ultradns.info directs traffic to 156.154.68.73 and 2610:a1:1016::6d.

pdns73.ultradns.net directs traffic to 156.154.65.73 and 2610:a1:1014::6d.

pdns73.ultradns.org directs traffic to 156.154.67.73 and 2001:502:4612::6d.

pdns73.ultradns.co.uk directs traffic to 156.154.69.73 and 2610:a1:1017::6d.