bitter.ch - robtex.com

bitter.ch

DNSSEC⚠️ Not signed
NSns1.swisscenter.com ⚠️ Not in zone NS records
A2001:1600:120:100::a🇨🇭 Infomaniak-AS2001:1600::/32 Infomaniak Network SA
PTRns1.swisscenter.com
A83.166.158.200🇨🇭 Infomaniak-AS83.166.128.0/19 Infomaniak Network SA
NSns2.swisscenter.com ⚠️ Not in zone NS records
A2a00:a500:0:93::78🇨🇭 OPENBUSINESS2a00:a500::/32 OpenBusiness Ltd / SwissCenter / SwissLink Lausanne, Switzerland
PTRns2.swisscenter.com
A94.103.96.78🇨🇭 OPENBUSINESS94.103.96.0/20 OpenBusiness Ltd / SwissCenter / SwissLink Lausanne, Switzerland
PTRns2.swisscenter.com
NSns3.swisscenter.com ⚠️ Not in zone NS records
A2a02:c207:2037:9959::1🇩🇪 CONTABO2a02:c207::/32
PTRns3.swisscenter.com
A213.136.91.208🇩🇪 CONTABO213.136.90.0/23
PTRns3.swisscenter.com
NSns4.swisscenter.com ⚠️ Not in zone NS records
A2001:4b98:dc2:41:216:3eff:fed3:abe0🇫🇷 GANDI-AS2001:4b98::/32 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net
PTRns4.swisscenter.com
A46.226.109.118🇫🇷 GANDI-AS46.226.108.0/22 GANDI is an ICANN accredited registrar and Cloud services provider
PTRns4.swisscenter.com

ch

DNSSEC🔒 Signed (DS record present)
NSa.nic.ch ⭐
NSb.nic.ch
NSd.nic.ch
NSe.nic.ch
NSf.nic.ch
SOAa.nic.chdns-operation@switch.ch 2026-07-24 #37

Same first word

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DNS History

10 records (4 active, 6 former)

20162017201820192020202120222023202420252026NSns1.swisscenter.comns2.swisscenter.comns3.swisscenter.comns4.swisscenter.comns1.sedoparking.comns2.sedoparking.comMXmail.nickstel.commail01.swisscenter.comA72.52.4.9194.103.96.173
○NSns1.sedoparking.com2015-06-19 → 2016-04-20 · 4 obs
● 2015-06-19 00:34:14
● 2016-04-20 07:29:48
○ 2016-12-29 19:21:22
○ 2026-07-24 17:22:42
●NSns1.swisscenter.com2016-12-29 → 2026-07-24 · 3 obs
○ 2016-04-20 07:29:48
● 2016-12-29 19:21:22
● 2026-07-24 17:22:42
○NSns2.sedoparking.com2015-06-19 → 2016-04-20 · 4 obs
● 2015-06-19 00:34:14
● 2016-04-20 07:29:48
○ 2016-12-29 19:21:22
○ 2026-07-24 17:22:42
●NSns2.swisscenter.com2016-12-29 → 2026-07-24 · 3 obs
○ 2016-04-20 07:29:48
● 2016-12-29 19:21:22
● 2026-07-24 17:22:42
●NSns3.swisscenter.com2016-12-29 → 2026-07-24 · 3 obs
○ 2016-04-20 07:29:48
● 2016-12-29 19:21:22
● 2026-07-24 17:22:42
●NSns4.swisscenter.com2016-12-29 → 2026-07-24 · 3 obs
○ 2016-04-20 07:29:48
● 2016-12-29 19:21:22
● 2026-07-24 17:22:42
○MXmail.nickstel.com2015-06-19 → 2016-04-20 · 4 obs
● 2015-06-19 00:34:14
● 2016-04-20 07:29:48
○ 2016-12-29 19:21:22
○ 2026-07-24 17:22:42
○MXmail01.swisscenter.com2016-12-29 → 2016-12-29 · 4 obs
○ 2016-04-20 07:29:48
● 2016-12-29 19:21:22
○ 2026-06-13 07:33:46
○ 2026-07-24 17:22:42
○A72.52.4.912015-06-19 → 2016-04-20 · 4 obs
● 2015-06-19 00:34:14
● 2016-04-20 07:29:48
○ 2016-12-29 19:21:22
○ 2026-07-24 17:22:42
○A94.103.96.1732016-12-29 → 2016-12-29 · 4 obs
○ 2016-04-20 07:29:48
● 2016-12-29 19:21:22
○ 2026-06-13 07:33:46
○ 2026-07-24 17:22:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
che.nic.ch, b.nic.ch, a.nic.ch, d.nic.ch...-
bitter.chns3.swisscenter.com, ns4.swisscenter.com, ns1.swisscenter.com, ns2.swisscenter.com-

✅ Authoritative Response

Server:213.136.91.208

NS records: ns3.swisscenter.com, ns4.swisscenter.com, ns1.swisscenter.com, ns2.swisscenter.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bitter.ch (unsigned zone)

⏱️ Timing

Total: 873ms | Queries: -

📄 Records

TypeCountSample Data

Analysis

Name Servers

bitter.ch has four authoritative name servers: ns1.swisscenter.com, ns2.swisscenter.com, ns3.swisscenter.com and ns4.swisscenter.com.

At least some of bitter.ch's name servers are shared with other domains, for example libido.ch, addesign.ch, sssh.ch and two more.

These name servers are often deployed together with the name servers ns1.swisslink.ch, ns2.swisslink.ch, ns3.swisslink.ch and ns4.swisslink.ch.

Four hostnames, each resolving to a pair of IP addresses: ns1.swisscenter.com directs to 83.166.158.200 and 2001:1600:120:100::a; ns2.swisscenter.com directs to 94.103.96.78 and 2a00:a500:0:93::78; ns3.swisscenter.com directs to 213.136.91.208 and 2a02:c207:2037:9959::1; ns4.swisscenter.com directs to 46.226.109.118 and 2001:4b98:dc2:41:216:3eff:fed3:abe0.