ipv6tech.ch - dns.ninja

`ipv6tech.ch`

DNSSEC	⚠️ Not signed
A	2a02:168:6229::113^{🇨🇭 INIT72a02:168::/32 Init7 (Switzerland) AG, AS13030 IPv6 Allocation}
		PTR	`ipv6tech.ch`
A	212.51.140.225^{🇨🇭 INIT7212.51.128.0/20 Init7 (Switzerland) Ltd. St. Georgen-Strasse 70 CH-8400 Winterthur}
NS	`as10.zweiernet.ch` ⭐
		A	2a02:168:6229::10^{🇨🇭 INIT72a02:168::/32 Init7 (Switzerland) AG, AS13030 IPv6 Allocation}
			PTR	`as10.zweiernet.ch`
		A	212.51.140.225^{🇨🇭 INIT7212.51.128.0/20 Init7 (Switzerland) Ltd. St. Georgen-Strasse 70 CH-8400 Winterthur}
			PTR	`as10.zweiernet.ch`
NS	`z0.zweiernet.ch`
		A	2a01:4f8:221:444::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`z0.zweiernet.ch`
		A	188.40.62.40^{🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1}
			PTR	`z0.zweiernet.ch`
MX	`as10.zweiernet.ch` ⭐
		A	2a02:168:6229::10^{🇨🇭 INIT72a02:168::/32 Init7 (Switzerland) AG, AS13030 IPv6 Allocation}
			PTR	`as10.zweiernet.ch`
		A	212.51.140.225^{🇨🇭 INIT7212.51.128.0/20 Init7 (Switzerland) Ltd. St. Georgen-Strasse 70 CH-8400 Winterthur}
			PTR	`as10.zweiernet.ch`
TXT	`v=spf1 include:ZweierNet.ch ?all`
SOA	`as10.ZweierNet.ch`hostmaster@ZweierNet.ch 2022-07-14 #3

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-07-29 #38

PTR for

3.1.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.9.2.2.6.8.6.1.0.2.0.a.2.ip6.arpa

Subdomains

mail.ipv6tech.ch

www.ipv6tech.ch

Same first word

ipv6tech.ch

ipv6tech.com

DNS History

10 records (5 active, 5 former)

●NSas10.zweiernet.ch2015-08-15 → 2026-07-29 · 2 obs

● 2015-08-15 20:35:50
● 2026-07-29 17:57:46

○NSns1.net-wizard.org2015-08-15 → 2017-08-30 · 4 obs

● 2015-08-15 20:35:50
● 2017-08-30 02:10:04
○ 2026-03-03 08:51:00
○ 2026-07-29 17:57:46

○NSns2.net-wizard.org2015-08-15 → 2017-08-30 · 4 obs

● 2015-08-15 20:35:50
● 2017-08-30 02:10:04
○ 2026-03-03 08:51:00
○ 2026-07-29 17:57:46

●NSz0.zweiernet.ch2026-03-03 → 2026-07-29 · 3 obs

○ 2017-08-30 02:10:04
● 2026-03-03 08:51:00
● 2026-07-29 17:57:46

●MXas10.zweiernet.ch2026-03-03 → 2026-07-29 · 3 obs

○ 2017-08-30 02:10:04
● 2026-03-03 08:51:00
● 2026-07-29 17:57:46

○MXmail.ipv6tech.ch2015-08-15 → 2016-12-19 · 4 obs

● 2015-08-15 20:35:50
● 2016-12-19 21:52:48
○ 2017-08-30 02:10:04
○ 2026-07-29 17:57:46

○MXmail.zweiernet.ch2017-08-30 → 2017-08-30 · 4 obs

○ 2016-12-19 21:52:48
● 2017-08-30 02:10:04
○ 2026-03-03 08:51:00
○ 2026-07-29 17:57:46

○A2001:8e0:1423::1132017-08-30 → 2017-08-30 · 3 obs

● 2017-08-30 02:10:04
○ 2026-03-03 08:51:00
○ 2026-07-29 17:57:46

●A212.51.140.2252026-03-03 → 2026-07-29 · 3 obs

○ 2017-08-30 02:10:04
● 2026-03-03 08:51:00
● 2026-07-29 17:57:46

●A2a02:168:6229::1132026-03-03 → 2026-07-29 · 3 obs

○ 2017-08-30 02:10:04
● 2026-03-03 08:51:00
● 2026-07-29 17:57:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	b.nic.ch, e.nic.ch, a.nic.ch, d.nic.ch...	-
ipv6tech.ch	as10.zweiernet.ch, z0.zweiernet.ch	4 records

✅ Authoritative Response

Server:212.51.140.225

NS records: as10.zweiernet.ch, z0.zweiernet.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ipv6tech.ch (unsigned zone)

⏱️ Timing

Total: 574ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.51.140.225`
AAAA	1	`2a02:168:6229::113`
NS	2	`z0.zweiernet.ch, as10.ZweierNet.ch`
MX	1	`as10.zweiernet.ch (pri: 0)`
TXT	1	`v=spf1 include:ZweierNet.ch ?all`
SOA	1	`as10.ZweierNet.ch hostmaster.ZweierNet.c`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (as10.zweiernet.ch, z0.zweiernet.ch, as10.zweiernet.ch...)

Analysis

Hierarchy

The parent domain of mail.ipv6tech.ch and www.ipv6tech.ch is ipv6tech.ch.

IP Addresses

ipv6tech.ch resolves to the IP addresses 212.51.140.225 and 2a02:168:6229::113

Among the host names that share IP numbers with ipv6tech.ch are zweiernet.ch, werkplatz-galerie.ch, myport-tools.ch and two others.

Name Servers

ipv6tech.ch uses two name servers for its delegation: as10.zweiernet.ch and z0.zweiernet.ch.

ipv6tech.ch has the same name server delegation as a number of other domains, such as werkplatz-galerie.ch, myport-tools.ch, ninon.ch and two more.

The two host names as10.zweiernet.ch and z0.zweiernet.ch each have a pair of IP addresses: as10.zweiernet.ch has 212.51.140.225 and 2a02:168:6229::10, and z0.zweiernet.ch has 188.40.62.40 and 2a01:4f8:221:444::2.

Mail Servers

ipv6tech.ch routes its mail through a single mail server, as10.zweiernet.ch.

ipv6tech.ch has the same mail server arrangement as a number of other domains, for example myport-tools.ch, ninon.ch, bany.ch and two more.