`techfak.net`

DNSSEC	⚠️ Not signed
A	2001:638:504:2040::93^{🇩🇪 DFN2001:638::/32 -V6-AGG1}
		PTR	`www.techfak.uni-bielefeld.de`
A	129.70.142.93^{🇩🇪 DFN129.70.0.0/16 UNIBI}
NS	`dns.techfak.net` ⭐
		A	2001:638:504:2000::f0^{🇩🇪 DFN2001:638::/32 -V6-AGG1}
			PTR	`dns.techfak.net`
		A	129.70.136.153^{🇩🇪 DFN129.70.0.0/16 UNIBI}
			PTR	`dns.techfak.net`
NS	`auth-ext0.dns.techfak.net`
		A	2a01:4f8:1c0c:7f8f::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`auth-ext0.dns.techfak.net`
		A	195.201.119.124^{🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC}
			PTR	`auth-ext0.dns.techfak.net`
NS	`auth0.dns.techfak.net`
		A	2001:638:504:2000::f1^{🇩🇪 DFN2001:638::/32 -V6-AGG1}
			PTR	`auth0.dns.techfak.net`
		A	129.70.136.154^{🇩🇪 DFN129.70.0.0/16 UNIBI}
			PTR	`auth0.dns.techfak.net`
NS	`auth1.dns.techfak.net`
		A	2001:638:504:2000::f2^{🇩🇪 DFN2001:638::/32 -V6-AGG1}
			PTR	`auth1.dns.techfak.net`
		A	129.70.132.16^{🇩🇪 DFN129.70.0.0/16 UNIBI}
			PTR	`auth1.dns.techfak.net`
MX	`gw1.mail.techfak.net` ⭐
		A	2001:638:504:2014::27^{🇩🇪 DFN2001:638::/32 -V6-AGG1}
			PTR	`gw1.mail.techfak.net`
		A	129.70.137.27^{🇩🇪 DFN129.70.0.0/16 UNIBI}
			PTR	`gw1.mail.techfak.net`
MX	`gw2.mail.techfak.net` ⭐
		A	2001:638:504:2014::28^{🇩🇪 DFN2001:638::/32 -V6-AGG1}
			PTR	`gw2.mail.techfak.net`
		A	129.70.137.28^{🇩🇪 DFN129.70.0.0/16 UNIBI}
			PTR	`gw2.mail.techfak.net`
TXT	`HARICA-H32oIjvDyhIMI1Tnfsm`
TXT	`v=spf1 redirect=_spf.techfak.net`
SOA	`dns.TechFak.NET`hostmaster@TechFak.NET 2026-03-10 #5

`net`

	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=1771291465

WOT: SAFE (62/100)
📈 Tranco rank: #52,499

Subdomains

ldap.techfak.net

smarthost.techfak.net

www.techfak.net

dns.techfak.net

mx-ext1.techfak.net

ntp.techfak.net

mx-last.techfak.net

status.techfak.net

Same first word

techfak.com

techfak.org

techfak.de

techfak.info

techfak.net

Similar names

fatheck.com

afktech.com

akftech.com

fetchak.net

kaftech.us

fetchak.com

kaftech.com

thefack.com

chefkat.com

thefack.altervista.org

hacketf.net

DNS History

37 records (8 active, 29 former)

●NSauth-ext0.dns.techfak.net2015-09-03 → 2026-03-13 · 2 obs

● 2015-09-03 13:38:44
● 2026-03-13 12:15:48

●NSauth0.dns.techfak.net2015-09-03 → 2026-03-13 · 2 obs

● 2015-09-03 13:38:44
● 2026-03-13 12:15:48

●NSauth1.dns.techfak.net2015-09-03 → 2026-03-13 · 2 obs

● 2015-09-03 13:38:44
● 2026-03-13 12:15:48

●NSdns.techfak.net2015-09-03 → 2026-03-13 · 2 obs

● 2015-09-03 13:38:44
● 2026-03-13 12:15:48

●MXgw1.mail.techfak.net2026-02-14 → 2026-03-13 · 3 obs

○ 2017-07-04 16:14:44
● 2026-02-14 21:24:36
● 2026-03-13 12:15:48

●MXgw2.mail.techfak.net2026-02-14 → 2026-03-13 · 3 obs

○ 2017-07-04 16:14:44
● 2026-02-14 21:24:36
● 2026-03-13 12:15:48

○MXmx-ext1.techfak.net2015-09-03 → 2017-07-04 · 4 obs

● 2015-09-03 13:38:44
● 2017-07-04 16:14:44
○ 2026-02-14 21:24:36
○ 2026-03-13 12:15:48

○MXmx-last.techfak.net2015-09-03 → 2017-07-04 · 4 obs

● 2015-09-03 13:38:44
● 2017-07-04 16:14:44
○ 2026-02-14 21:24:36
○ 2026-03-13 12:15:48

○MXmx1.techfak.net2015-09-03 → 2017-07-04 · 4 obs

● 2015-09-03 13:38:44
● 2017-07-04 16:14:44
○ 2026-02-14 21:24:36
○ 2026-03-13 12:15:48

○MXmx2.techfak.net2015-09-03 → 2017-07-04 · 4 obs

● 2015-09-03 13:38:44
● 2017-07-04 16:14:44
○ 2026-02-14 21:24:36
○ 2026-03-13 12:15:48

●A129.70.142.932015-09-03 → 2026-03-13 · 2 obs

● 2015-09-03 13:38:44
● 2026-03-13 12:15:48

●A2001:638:504:2040::932015-09-03 → 2026-03-13 · 2 obs

● 2015-09-03 13:38:44
● 2026-03-13 12:15:48

○PTR0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.4.0.5.0.8.3.6.0.1.0.0.2.ip6.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.128.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.129.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.130.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.131.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.132.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.133.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.134.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.135.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.136.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.137.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.138.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.139.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.140.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.141.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.142.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.143.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.144.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.145.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.146.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.147.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.148.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.149.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.150.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

○PTR0.151.70.129.in-addr.arpa2017-07-04 → 2026-02-17 · 4 obs

● 2017-07-04 16:14:44
● 2026-02-17 00:10:02
○ 2026-02-17 14:10:00
○ 2026-03-13 12:15:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
techfak.net	auth-ext0.dns.techfak.net, auth0.dns.techfak.net, auth1.dns.techfak.net	6 records

✅ Authoritative Response

Server: 129.70.132.16

NS records: auth-ext0.dns.techfak.net, auth0.dns.techfak.net, auth1.dns.techfak.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 679ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`129.70.142.93`
AAAA	1	`2001:638:504:2040::93`
NS	3	`auth-ext0.DNS.TechFak.NET, auth1.DNS.TechFak.NET...`
MX	2	`gw1.mail.techfak.net (pri: 100), gw2.mail.techfak.net (pri: 100)`
TXT	2	`HARICA-H32oIjvDyhIMI1Tnfsm, v=spf1 redirect=_spf.techfak.net`
SOA	1	`dns.TechFak.NET hostmaster.TechFak.NET`

📌 Glue Records Collected

Total: 6

In-bailiwick: 6 (auth-ext0.dns.techfak.net, auth-ext0.dns.techfak.net, auth0.dns.techfak.net...)

Analysis

Hierarchy

The parent of ldap.techfak.net, smarthost.techfak.net, www.techfak.net, dns.techfak.net, mx-ext1.techfak.net and a few other host names is techfak.net.

IP Addresses

techfak.net resolves to two IP numbers: 2001:638:504:2040::93 and 129.70.142.93.

Other host names, for instance www.rvs.uni-bielefeld.de, techfak.uni-bielefeld.de, cit-ec.eu, techfak.org and humavips.eu share IP numbers with techfak.net.

Name Servers

techfak.net is delegated to four name servers: dns.techfak.net, auth-ext0.dns.techfak.net, auth0.dns.techfak.net and auth1.dns.techfak.net.

techfak.net shares some name servers with other domains, for example cor-lab.eu, ti.uni-bielefeld.de, 144.70.129.in-addr.arpa, 136.70.129.in-addr.arpa and techfak.uni-bielefeld.de.

these name servers are often used with auth0.dns.techfak.uni-bielefeld.de, auth1.dns.techfak.uni-bielefeld.de, dns1.belwue.de, dns3.belwue.de, dns.techfak.uni-bielefeld.de, pns.dtag.de, ns1.netcologne.de, ns2.netcologne.de, noc.rrz.uni-koeln.de and dns-ext.netcologne.de.

Host names with two IP numbers

Two IPs per host:

dns.techfak.net points to 2001:638:504:2000::f0 and 129.70.136.153

auth-ext0.dns.techfak.net points to 2a01:4f8:1c0c:7f8f::1 and 195.201.119.124

auth0.dns.techfak.net points to 2001:638:504:2000::f1 and 129.70.136.154

auth1.dns.techfak.net points to 2001:638:504:2000::f2 and 129.70.132.16

Mail Servers

techfak.net is served by two mail servers: gw1.mail.techfak.net and gw2.mail.techfak.net.

techfak.net shares some mail servers with other domains, at least partially; for instance cit-ec.eu, techfak.org, cit-ec.net, cit-ec.uni-bielefeld.de and cit-ec.org.

these mail servers are commonly used alongside mx-last.techfak.net and mx-ext.mail.techfak.net.

Host names with two IP numbers:

gw1.mail.techfak.net points to: 2001:638:504:2014::27 and 129.70.137.27; gw2.mail.techfak.net points to: 2001:638:504:2014::28 and 129.70.137.28.

techfak.net - robtex.com

techfak.net

net

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`techfak.net`

`net`