`selectbcbsil.com`

DNSSEC	🔒 Signed (DS record present)
A	204.74.99.100^{🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar}
		PTR	`crs.ultradns.net`
NS	`pdns166.ultradns.com` ⭐ ⚠️ Not in zone NS records
		A	2001:502:f3ff::ca^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns166.ultradns.com`
		A	156.154.64.166^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns166.ultradns.com`
NS	`ns47.ultradns2.com`
		A	2610:a1:312f::53^{🇺🇸 AS3991692610:a1:312f::/48}
			PTR	`ns47.ultradns2.com`
		A	204.74.104.47^{🇺🇸 AS399169204.74.104.0/24 UltraDNS}
			PTR	`ns47.ultradns2.com`
NS	`ns47.ultradns2.org`
		A	2610:a1:322f::53^{🇺🇸 AS3991692610:a1:322f::/48}
			PTR	`ns47.ultradns2.org`
		A	204.74.106.47^{🇺🇸 AS399169204.74.106.0/24 UltraDNS}
			PTR	`ns47.ultradns2.org`
NS	`pdns1.ultradns.net` ⚠️ Not in zone NS records
		A	2001:502:f3ff::1^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns1.ultradns.net`
		A	204.74.108.1^{🇺🇸 MAINT-ID-12008204.74.108.0/24 Neustar}
			PTR	`pdns1.ultradns.net`
NS	`pdns166.ultradns.biz` ⚠️ Not in zone NS records
		A	2610:a1:1015::ca^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns166.ultradns.biz`
		A	156.154.66.166^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns166.ultradns.biz`
NS	`pdns166.ultradns.net` ⚠️ Not in parent delegation
		A	2610:a1:1014::ca^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns166.ultradns.net`
		A	156.154.65.166^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns166.ultradns.net`
NS	`pdns166.ultradns.org` ⚠️ Not in zone NS records
		A	2001:502:4612::ca^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns166.ultradns.org`
		A	156.154.67.166^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns166.ultradns.org`
NS	`pdns2.ultradns.net` ⚠️ Not in parent delegation
		A	2610:a1:1014::1^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns2.ultradns.net`
		A	204.74.109.1^{🇺🇸 MAINT-ID-12008204.74.109.0/24 Neustar}
			PTR	`pdns2.ultradns.net`
NS	`pdns3.ultradns.org` ⚠️ Not in parent delegation
		A	2610:a1:1015::1^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns3.ultradns.org`
		A	199.7.68.1^{🇺🇸 MAINT-ID-12008199.7.68.0/24 Neustar}
			PTR	`pdns3.ultradns.org`
NS	`pdns4.ultradns.org` ⚠️ Not in parent delegation
		A	2001:502:4612::1^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns4.ultradns.org`
		A	199.7.69.1^{🇺🇸 MAINT-ID-12008199.7.69.0/24 Neustar}
			PTR	`pdns4.ultradns.org`
NS	`pdns5.ultradns.info` ⚠️ Not in parent delegation
		A	2610:a1:1016::1^{🇺🇸 MAINT-ID-120082610:a1:1016::/48 Neustar}
			PTR	`pdns5.ultradns.info`
		A	204.74.114.1^{🇺🇸 MAINT-ID-12008204.74.114.0/24 Neustar}
			PTR	`pdns5.ultradns.info`
NS	`pdns6.ultradns.co.uk` ⚠️ Not in parent delegation
		A	2610:a1:1017::1^{🇺🇸 MAINT-ID-120082610:a1:1017::/48 Neustar}
			PTR	`pdns6.ultradns.co.uk`
		A	204.74.115.1^{🇺🇸 MAINT-ID-12008204.74.115.0/24 Neustar}
			PTR	`pdns6.ultradns.co.uk`
TXT	`v=spf1 -all`
SOA	`pdns166.ultradns.com`bill_giambalvo@bcbstx.com 2014-06-16 #38

`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=1785606307

Same first word

selectbcbsil.com

DNS History

13 records (13 active, 0 former)

●NSns47.ultradns2.com2026-07-21 → 2026-08-01 · 3 obs

○ 2015-05-16 12:29:16
● 2026-07-21 17:46:38
● 2026-08-01 17:58:58

●NSns47.ultradns2.org2026-07-21 → 2026-08-01 · 3 obs

○ 2015-05-16 12:29:16
● 2026-07-21 17:46:38
● 2026-08-01 17:58:58

●NSpdns1.ultradns.net2015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

●NSpdns166.ultradns.biz2026-07-21 → 2026-08-01 · 3 obs

○ 2015-05-16 12:29:16
● 2026-07-21 17:46:38
● 2026-08-01 17:58:58

●NSpdns166.ultradns.com2015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

●NSpdns166.ultradns.net2026-07-21 → 2026-08-01 · 3 obs

○ 2015-05-16 12:29:16
● 2026-07-21 17:46:38
● 2026-08-01 17:58:58

●NSpdns166.ultradns.org2026-07-21 → 2026-08-01 · 3 obs

○ 2015-05-16 12:29:16
● 2026-07-21 17:46:38
● 2026-08-01 17:58:58

●NSpdns2.ultradns.net2015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

●NSpdns3.ultradns.org2015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

●NSpdns4.ultradns.org2015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

●NSpdns5.ultradns.info2015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

●NSpdns6.ultradns.co.uk2015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

●A204.74.99.1002015-05-16 → 2026-08-01 · 2 obs

● 2015-05-16 12:29:16
● 2026-08-01 17:58:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
selectbcbsil.com	pdns166.ultradns.net, pdns166.ultradns.com, pdns166.ultradns.biz, pdns166.ultradns.org...	4 records

✅ Authoritative Response

Server:204.74.104.47

NS records: pdns166.ultradns.net, pdns166.ultradns.com, pdns166.ultradns.biz, pdns166.ultradns.org, ns47.ultradns2.com, ns47.ultradns2.org

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 615ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`204.74.99.100`
NS	8	`ns47.ultradns2.com, ns47.ultradns2.org...`
TXT	1	`v=spf1 -all`
SOA	1	`pdns166.ultradns.com bill_giambalvo.bcbs`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (pdns166.ultradns.com, pdns166.ultradns.com, ns47.ultradns2.com...)

Analysis

IP Addresses

selectbcbsil.com resolves to one IP address: 204.74.99.100.

biomedcentral.net, xn--5us439fioi.com, freepeople.mx and two other host names share IP numbers with selectbcbsil.com.

Name Servers

selectbcbsil.com carries NS records listing 12 name servers — pdns166.ultradns.biz, pdns166.ultradns.com, ns47.ultradns2.com and 9 others.

There is at least partial name server overlap between selectbcbsil.com and other domains — dupontnederlands.nl, 1.a.3.9.0.c.7.5.e.7.0.5.f.0.0.0.0.0.4.4.d.4.4.2.0.0.0.9.0.0.6.2.ip6.arpa, 64.155.in-addr.arpa and two more among them.

These name servers regularly appear alongside pdns166.ultradns.net, pdns166.ultradns.org, ns47.ultradns2.org and 7 other name servers in NS record sets.

Hostnames that resolve to two IP addresses:

The A records for pdns166.ultradns.biz return 156.154.66.166 and 2610:a1:1015::ca.

The A records for pdns166.ultradns.com return 156.154.64.166 and 2001:502:f3ff::ca.

The A records for ns47.ultradns2.com return 204.74.104.47 and 2610:a1:312f::53.

The A records for pdns5.ultradns.info return 204.74.114.1 and 2610:a1:1016::1.

The A records for pdns166.ultradns.net return 156.154.65.166 and 2610:a1:1014::ca.

The A records for pdns1.ultradns.net return 204.74.108.1 and 2001:502:f3ff::1.

The A records for pdns2.ultradns.net return 204.74.109.1 and 2610:a1:1014::1.

The A records for pdns166.ultradns.org return 156.154.67.166 and 2001:502:4612::ca.

The A records for pdns3.ultradns.org return 199.7.68.1 and 2610:a1:1015::1.

The A records for pdns4.ultradns.org return 199.7.69.1 and 2001:502:4612::1.

The A records for ns47.ultradns2.org return 204.74.106.47 and 2610:a1:322f::53.

The A records for pdns6.ultradns.co.uk return 204.74.115.1 and 2610:a1:1017::1.

selectbcbsil.com - robtex.com