`birkhauserscience.de`

DNSSEC	⚠️ Not signed
A	146.75.28.95^{🇺🇸 Fastly146.75.28.0/22}
NS	`pdns1.ultradns.net` ⭐
		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	`pdns2.ultradns.net`
		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`
		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`
		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`
		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`
		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`
SOA	`pdns1.ultradns.net`hostmaster@springernature.com 2021-02-04 #9

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1775207511

Same first word

birkhauserscience.net

birkhauserscience.eu

birkhauserscience.com

birkhauserscience.de

DNS History

15 records (7 active, 8 former)

○NSdns1.springer.com2015-07-07 → 2020-03-20 · 4 obs

● 2015-07-07 08:05:50
● 2020-03-20 18:48:34
○ 2026-02-21 16:14:06
○ 2026-04-03 09:22:30

○NSdns2.springer.com2015-07-07 → 2020-03-20 · 4 obs

● 2015-07-07 08:05:50
● 2020-03-20 18:48:34
○ 2026-02-21 16:14:06
○ 2026-04-03 09:22:30

○NSdns4.springer.com2015-07-07 → 2020-03-20 · 4 obs

● 2015-07-07 08:05:50
● 2020-03-20 18:48:34
○ 2026-02-21 16:14:06
○ 2026-04-03 09:22:30

●NSpdns1.ultradns.net2026-02-21 → 2026-04-03 · 3 obs

○ 2020-03-20 18:48:34
● 2026-02-21 16:14:06
● 2026-04-03 09:22:30

●NSpdns2.ultradns.net2026-02-21 → 2026-04-03 · 3 obs

○ 2020-03-20 18:48:34
● 2026-02-21 16:14:06
● 2026-04-03 09:22:30

●NSpdns3.ultradns.org2026-02-21 → 2026-04-03 · 3 obs

○ 2020-03-20 18:48:34
● 2026-02-21 16:14:06
● 2026-04-03 09:22:30

●NSpdns4.ultradns.org2026-02-21 → 2026-04-03 · 3 obs

○ 2020-03-20 18:48:34
● 2026-02-21 16:14:06
● 2026-04-03 09:22:30

●NSpdns5.ultradns.info2026-02-21 → 2026-04-03 · 3 obs

○ 2020-03-20 18:48:34
● 2026-02-21 16:14:06
● 2026-04-03 09:22:30

●NSpdns6.ultradns.co.uk2026-02-21 → 2026-04-03 · 3 obs

○ 2020-03-20 18:48:34
● 2026-02-21 16:14:06
● 2026-04-03 09:22:30

●A146.75.28.952026-02-21 → 2026-04-03 · 8 obs

○ 2020-03-20 18:48:34
● 2026-02-21 16:14:06
○ 2026-02-26 04:49:04
○ 2026-03-04 22:58:56
● 2026-03-21 15:56:54
○ 2026-03-22 16:02:40
○ 2026-03-30 21:56:50
● 2026-04-03 09:22:30

○A146.75.92.952026-02-26 → 2026-03-30 · 8 obs

○ 2026-02-21 16:14:06
● 2026-02-26 04:49:04
● 2026-03-03 06:24:14
○ 2026-03-03 11:05:46
○ 2026-03-21 15:56:54
● 2026-03-22 16:02:40
● 2026-03-30 21:56:50
○ 2026-04-03 09:22:30

○A151.101.204.952026-03-04 → 2026-03-04 · 4 obs

○ 2026-03-03 11:05:46
● 2026-03-04 22:58:56
○ 2026-03-21 15:56:54
○ 2026-04-03 09:22:30

○A151.101.40.952026-03-03 → 2026-03-03 · 4 obs

○ 2026-03-03 06:24:14
● 2026-03-03 11:05:46
○ 2026-03-04 22:58:56
○ 2026-04-03 09:22:30

○A195.128.8.1342017-03-18 → 2020-03-20 · 5 obs

○ 2016-05-04 18:24:32
● 2017-03-18 03:09:34
● 2020-03-20 18:48:34
○ 2026-02-21 16:14:06
○ 2026-04-03 09:22:30

○A62.50.45.352015-07-07 → 2016-05-04 · 4 obs

● 2015-07-07 08:05:50
● 2016-05-04 18:24:32
○ 2017-03-18 03:09:34
○ 2026-04-03 09:22:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, z.nic.de, a.nic.de	-
birkhauserscience.de	pdns1.ultradns.net, pdns2.ultradns.net, pdns5.ultradns.info, pdns4.ultradns.org...	-

✅ Authoritative Response

Server:204.74.108.1

NS records: pdns1.ultradns.net, pdns2.ultradns.net, pdns5.ultradns.info, pdns4.ultradns.org, pdns3.ultradns.org, pdns6.ultradns.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for birkhauserscience.de (unsigned zone)

⏱️ Timing

Total: 1033ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`199.232.36.95`
NS	6	`pdns1.ultradns.net, pdns2.ultradns.net...`
SOA	1	`pdns1.ultradns.net hostmaster.springerna`

Analysis

IP Addresses

birkhauserscience.de points to a single IP address: 146.75.28.95.

Other host names such as resource-allocation.com, jeccr.com, springerscience.com, jchinesestudies.com and banenvoortandartsen.nl share IPs with birkhauserscience.de.

Name Servers

birkhauserscience.de is delegated to six name servers: pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org and pdns6.ultradns.co.uk.

birkhauserscience.de at least partially shares name servers with other domains, for example smartseedchoice.com, pakistantravelguru.com, expediacafe.sr, quickspingames.com and espedia.no.

These name servers are often used with udns1.ultradns.net, udns2.ultradns.net, dns1.p01.nsone.net, dns1.cscdns.net and dns2.cscdns.net.

Host names with two IP numbers:

pdns5.ultradns.info points to: 2610:a1:1016::1 and 204.74.114.1

pdns1.ultradns.net points to: 2001:502:f3ff::1 and 204.74.108.1

pdns2.ultradns.net points to: 2610:a1:1014::1 and 204.74.109.1

pdns3.ultradns.org points to: 2610:a1:1015::1 and 199.7.68.1

pdns4.ultradns.org points to: 2001:502:4612::1 and 199.7.69.1

pdns6.ultradns.co.uk points to: 2610:a1:1017::1 and 204.74.115.1

birkhauserscience.de - robtex.com