`rb-leipzig.org`

DNSSEC	⚠️ Not signed
A	204.74.99.100^{🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar}
		PTR	`crs.ultradns.net`
NS	`pdns91.ultradns.com` ⭐
		A	2001:502:f3ff::7f^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns91.ultradns.com`
		A	156.154.64.91^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns91.ultradns.com`
NS	`ns15.ultradns2.com`
		A	2610:a1:310f::53^{🇺🇸 AS3991692610:a1:310f::/48}
			PTR	`ns15.ultradns2.com`
		A	204.74.104.15^{🇺🇸 AS399169204.74.104.0/24 UltraDNS}
			PTR	`ns15.ultradns2.com`
NS	`ns15.ultradns2.org`
		A	2610:a1:320f::53^{🇺🇸 AS3991692610:a1:320f::/48}
			PTR	`ns15.ultradns2.org`
		A	204.74.106.15^{🇺🇸 AS399169204.74.106.0/24 UltraDNS}
			PTR	`ns15.ultradns2.org`
NS	`pdns91.ultradns.biz`
		A	2610:a1:1015::7f^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns91.ultradns.biz`
		A	156.154.66.91^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns91.ultradns.biz`
NS	`pdns91.ultradns.net`
		A	2610:a1:1014::7f^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns91.ultradns.net`
		A	156.154.65.91^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns91.ultradns.net`
NS	`pdns91.ultradns.org`
		A	2001:502:4612::7f^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns91.ultradns.org`
		A	156.154.67.91^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns91.ultradns.org`
TXT	`v=spf1 -all`
SOA	`pdns91.ultradns.com`domains@redbull.com 2016-06-27 #37

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785786661

Same first word

rb-leipzig.com

rb-leipzig.de

rb-leipzig.org

DNS History

15 records (7 active, 8 former)

○NSns1.markmonitor.com2015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

●NSns15.ultradns2.com2026-03-31 → 2026-08-03 · 3 obs

○ 2016-11-29 19:41:24
● 2026-03-31 20:32:52
● 2026-08-03 20:18:16

●NSns15.ultradns2.org2026-03-31 → 2026-08-03 · 3 obs

○ 2016-11-29 19:41:24
● 2026-03-31 20:32:52
● 2026-08-03 20:18:16

○NSns2.markmonitor.com2015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

○NSns3.markmonitor.com2015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

○NSns4.markmonitor.com2015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

○NSns5.markmonitor.com2015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

○NSns6.markmonitor.com2015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

○NSns7.markmonitor.com2015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

●NSpdns91.ultradns.biz2016-11-29 → 2026-08-03 · 3 obs

○ 2016-04-19 10:52:10
● 2016-11-29 19:41:24
● 2026-08-03 20:18:16

●NSpdns91.ultradns.com2016-11-29 → 2026-08-03 · 3 obs

○ 2016-04-19 10:52:10
● 2016-11-29 19:41:24
● 2026-08-03 20:18:16

●NSpdns91.ultradns.net2016-11-29 → 2026-08-03 · 3 obs

○ 2016-04-19 10:52:10
● 2016-11-29 19:41:24
● 2026-08-03 20:18:16

●NSpdns91.ultradns.org2016-11-29 → 2026-08-03 · 3 obs

○ 2016-04-19 10:52:10
● 2016-11-29 19:41:24
● 2026-08-03 20:18:16

●A204.74.99.1002016-11-29 → 2026-08-03 · 3 obs

○ 2016-04-19 10:52:10
● 2016-11-29 19:41:24
● 2026-08-03 20:18:16

○A72.52.10.142015-04-25 → 2016-04-19 · 4 obs

● 2015-04-25 10:15:42
● 2016-04-19 10:52:10
○ 2016-11-29 19:41:24
○ 2026-08-03 20:18:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
rb-leipzig.org	ns15.ultradns2.org, pdns91.ultradns.org, ns15.ultradns2.com, pdns91.ultradns.net...	4 records

✅ Authoritative Response

Server:204.74.104.15

NS records: ns15.ultradns2.org, pdns91.ultradns.org, ns15.ultradns2.com, pdns91.ultradns.net, pdns91.ultradns.biz, pdns91.ultradns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rb-leipzig.org (unsigned zone)

⏱️ Timing

Total: 779ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`204.74.99.100`
NS	6	`ns15.ultradns2.com, ns15.ultradns2.org...`
TXT	1	`v=spf1 -all`
SOA	1	`pdns91.ultradns.com domains.redbull.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (pdns91.ultradns.org, ns15.ultradns2.org, pdns91.ultradns.org...)

Analysis

IP Addresses

rb-leipzig.org resolves to just one IP address, 204.74.99.100.

Two other host names, along with btbchampion.com, failover.neustar and kelleyblackbook.com, also share IP numbers with rb-leipzig.org.

Name Servers

DNS for rb-leipzig.org is handled by 6 name servers: pdns91.ultradns.biz, pdns91.ultradns.com, ns15.ultradns2.com and 3 others.

There is at least partial name server overlap between rb-leipzig.org and other domains — redbulladvancedservices.com, redbullsoundclash.nl, redbullgifsyouwings.com and two more among them.

The name servers pdns91.ultradns.net, pdns91.ultradns.org and ns15.ultradns2.org are often found in combination with these name servers.

Host names that have two IP addresses:

pdns91.ultradns.biz has two IP addresses: 156.154.66.91 and 2610:a1:1015::7f.

pdns91.ultradns.com has two IP addresses: 156.154.64.91 and 2001:502:f3ff::7f.

ns15.ultradns2.com has two IP addresses: 204.74.104.15 and 2610:a1:310f::53.

pdns91.ultradns.net has two IP addresses: 156.154.65.91 and 2610:a1:1014::7f.

pdns91.ultradns.org has two IP addresses: 156.154.67.91 and 2001:502:4612::7f.

ns15.ultradns2.org has two IP addresses: 204.74.106.15 and 2610:a1:320f::53.