`fir.de`

DNSSEC	⚠️ Not signed
A	134.130.93.45^{🇩🇪 RWTH-AS134.130.0.0/16 ACHSE}
		PTR	`www3.fir.rwth-aachen.de`
NS	`nsa4.schlundtech.de` ⭐
		A	2607:f1c0:fe:53:185:132:34:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.com`
		A	185.132.34.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.com`
NS	`nsb4.schlundtech.de`
		A	2607:f1c0:fe:53:185:132:35:227^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-stec.ui-dns.org`
		A	185.132.35.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.org`
NS	`nsc4.schlundtech.de`
		A	2001:8d8:fe:53:217:160:80:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
		A	217.160.80.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
NS	`nsd4.schlundtech.de`
		A	2001:8d8:fe:53:217:160:81:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
		A	217.160.81.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
SOA	`nsa4.schlundtech.de`webmaster@fir.rwth-aachen.de 2025-11-26 #91

`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=1774691089

Subdomains

analytics.fir.de

Same first word

fir.su

fir.ch

fir.fi

fir.es

fir.ca

fir.cc

fir.no

fir.vn

fir.at

fir.ro

fir.org

fir.xyz

fir.biz

fir.im

fir.net

fir.me

fir.in

fir.pl

fir.it

fir.hk

fir.nu

fir.info

fir.sh

fir.de

fir.cl

fir.ws

fir.ba

fir.co.jp

fir.ai

fir.ru

fir.is

fir.eu

fir.be

fir.gr

fir.email

fir.dk

fir.hu

fir.pp.ua

fir.ma

fir.org.pl

fir.nyc

fir.us

fir.by

fir.com

Similar names

ifr.com.au

ifr.net.au

irf.global

fri.org.ua

ifr.hu

rif.ru

rif.es

fri.ru

irf.com

rif.fi

fri.cc

rif.eu

rif.sk

rfi.co.kr

rif.com.mx

fri.com

fri.es

rif.digital

fri.cl

irf.or.kr

fri.rocks

fri.biz

ifr.info

fri.co.il

rif.zp.ua

irf.com.cn

rif.tm

rif.co.uk

irf.ca

irf.com.ua

irf.de

irf.eu

ifr.ac.uk

rfi.es

fri.com.br

rif.pt

rfi.co

irf.net

ifr.es

fri.tel

rfi.church

fri.mobi

fri.swiss

ifr.ru

rif.co.za

rif.com.br

ifr.trafficmanager.net

ifr.co.za

rif.bg

ifr.de

rif.ro

rif.us

fri.eu

rif.lt

rif.se

fri.com.au

irf.dk

ifr.ee

rfi.org

fri.ltd

rfi.info

irf.org.pl

fri.go.jp

irf.fi

rfi.email

fri.tv

ifr.su

rif.net.pl

rfi.global.ssl.fastly.net

rfi.pt

rfi.com.pl

rif.be

rfi.name

fri.si

rfi.cz

ifr.dk

fri.to

rfi.com.cn

fri.com.pe

fri.at

rif.ba

DNS History

7 records (5 active, 2 former)

●NSnsa4.schlundtech.de2015-08-10 → 2026-03-28 · 2 obs

● 2015-08-10 03:12:44
● 2026-03-28 09:45:24

●NSnsb4.schlundtech.de2015-08-10 → 2026-03-28 · 2 obs

● 2015-08-10 03:12:44
● 2026-03-28 09:45:24

●NSnsc4.schlundtech.de2015-08-10 → 2026-03-28 · 2 obs

● 2015-08-10 03:12:44
● 2026-03-28 09:45:24

●NSnsd4.schlundtech.de2015-08-10 → 2026-03-28 · 2 obs

● 2015-08-10 03:12:44
● 2026-03-28 09:45:24

○A134.130.93.442020-12-03 → 2020-12-03 · 4 obs

○ 2017-05-28 03:25:38
● 2020-12-03 15:47:46
○ 2026-03-16 18:54:18
○ 2026-03-28 09:45:24

●A134.130.93.452026-03-16 → 2026-03-28 · 3 obs

○ 2020-12-03 15:47:46
● 2026-03-16 18:54:18
● 2026-03-28 09:45:24

○A134.61.112.2242015-08-10 → 2017-05-28 · 4 obs

● 2015-08-10 03:12:44
● 2017-05-28 03:25:38
○ 2020-12-03 15:47:46
○ 2026-03-28 09:45:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
fir.de	nsa4.schlundtech.de, nsb4.schlundtech.de, nsc4.schlundtech.de, nsd4.schlundtech.de	-

✅ Authoritative Response

Server:217.160.81.227

NS records: nsa4.schlundtech.de, nsb4.schlundtech.de, nsc4.schlundtech.de, nsd4.schlundtech.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fir.de (unsigned zone)

⏱️ Timing

Total: 672ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`134.130.93.45`
NS	4	`nsa4.schlundtech.de, nsc4.schlundtech.de...`
SOA	1	`nsa4.schlundtech.de webmaster.fir.rwth-a`

Analysis

Hierarchy

fir.de is a parent of analytics.fir.de.

IP Addresses

fir.de points to a single IP number: 134.130.93.45.

Other host names, for instance www3.fir.rwth-aachen.de, share IP numbers with fir.de.

Name Servers

fir.de is delegated to four name servers: nsa4.schlundtech.de, nsb4.schlundtech.de, nsc4.schlundtech.de and nsd4.schlundtech.de.

fir.de at least partially shares name servers with other domains, for instance tillbo.com, kapstonellc.com, yartis.ch, iamworks.de and jashan-chittesh.de.

These name servers are commonly used with ns3.ip-projects.de and ns4.ip-projects.de.

Host names with two IP numbers:

nsa4.schlundtech.de points to: 2607:f1c0:fe:53:185:132:34:227 and 185.132.34.227.

nsb4.schlundtech.de points to: 2607:f1c0:fe:53:185:132:35:227 and 185.132.35.227.

nsc4.schlundtech.de points to: 2001:8d8:fe:53:217:160:80:227 and 217.160.80.227.

nsd4.schlundtech.de points to: 2001:8d8:fe:53:217:160:81:227 and 217.160.81.227.

fir.de - robtex.com

fir.de

de

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

`fir.de`

`de`