koopmann.ch - robtex.com
koopmann.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:ab20:0:4::112🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s103.cyon.net | ||||||
| A | 149.126.4.112🇨🇭 CYON149.126.0.0/21 cyon GmbH | ||||||
| NS | ns1.cyon.ch ⭐ | ||||||
| A | 2a01:ab20:0:185::2🇨🇭 CYON2a01:ab20::/32 | ||||||
| A | 185.174.216.2🇨🇭 CYON185.174.216.0/22 | ||||||
| PTR | ns1.cyon.ch | ||||||
| NS | ns2.cyon.ch | ||||||
| A | 2001:67c:234::2🇨🇭 CYON2001:67c:234::/48 cyon GmbH | ||||||
| A | 91.206.24.2🇨🇭 CYON91.206.24.0/23 Cyon GmbH | ||||||
| PTR | ns2.cyon.ch | ||||||
| MX | mail.koopmann.ch ⭐ | ||||||
| A | 2a01:ab20:0:4::112🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s103.cyon.net | ||||||
| A | 149.126.4.112🇨🇭 CYON149.126.0.0/21 cyon GmbH | ||||||
| PTR | s103.cyon.net | ||||||
| TXT | v=spf1 include:spf.protection.cyon.net -all | ||||||
| SOA | ns1.cyon.chserver@cyon.ch 2022-09-23 #2 | ||||||
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.chdns-operation@switch.ch 2026-03-15 #15 | ||||||
Previously NS for
koopmann.ch |
Subdomains
mail.koopmann.ch |
Same first word
DNS History
10 records (5 active, 5 former)
○NSkoopmann.ch2015-07-12 → 2019-12-28 · 4 obs
● 2019-12-28 16:26:30
○ 2026-02-15 17:25:28
○ 2026-03-22 20:40:08
○NSns01.nexline.ch2015-07-12 → 2019-12-28 · 4 obs
● 2019-12-28 16:26:30
○ 2026-02-15 17:25:28
○ 2026-03-22 20:40:08
○NSns02.nexline.ch2015-07-12 → 2019-12-28 · 4 obs
● 2019-12-28 16:26:30
○ 2026-02-15 17:25:28
○ 2026-03-22 20:40:08
●NSns1.cyon.ch2026-02-15 → 2026-03-22 · 3 obs
● 2026-02-15 17:25:28
● 2026-03-22 20:40:08
●NSns2.cyon.ch2026-02-15 → 2026-03-22 · 3 obs
● 2026-02-15 17:25:28
● 2026-03-22 20:40:08
●MXmail.koopmann.ch2026-02-15 → 2026-03-22 · 3 obs
● 2026-02-15 17:25:28
● 2026-03-22 20:40:08
○MXmail.nexline.ch2017-02-09 → 2019-12-28 · 5 obs
● 2017-02-09 05:13:04
● 2019-12-28 16:26:30
○ 2026-02-15 17:25:28
○ 2026-03-22 20:40:08
○MXmail2.nexline.ch2015-07-12 → 2016-05-01 · 4 obs
● 2016-05-01 05:51:02
○ 2017-02-09 05:13:04
○ 2026-03-22 20:40:08
●A149.126.4.1122026-02-15 → 2026-03-22 · 2 obs
● 2026-03-22 20:40:08
●A2a01:ab20:0:4::1122026-02-15 → 2026-03-22 · 2 obs
● 2026-03-22 20:40:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| koopmann.ch | ns1.cyon.ch, ns2.cyon.ch | 4 records |
✅ Authoritative Response
Server: 185.174.216.2
NS records: ns1.cyon.ch, ns2.cyon.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for koopmann.ch (unsigned zone)
⏱️ Timing
Total: 597ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 149.126.4.112 |
| AAAA | 1 | 2a01:ab20:0:4::112 |
| NS | 2 | ns2.cyon.ch, ns1.cyon.ch |
| MX | 1 | mail.koopmann.ch (pri: 0) |
| TXT | 1 | v=spf1 include:spf.protection.cyon.net - |
| SOA | 1 | ns1.cyon.ch server.cyon.ch |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.cyon.ch, ns2.cyon.ch, ns1.cyon.ch...)
Analysis
Hierarchy
koopmann.ch is parent of mail.koopmann.ch.
IP Addresses
koopmann.ch points to two IP numbers: 2a01:ab20:0:4::112 and 149.126.4.112.
Other host names, for instance remote.soldati.ch, gob.ch, mail.rusys.ch, jakobswege.net and mail.dejong.ch share IP numbers with koopmann.ch.
Name Servers
koopmann.ch's delegation is to two name servers ns1.cyon.ch and ns2.cyon.ch.
koopmann.ch shares the same name server configuration as other domains, such as latinlink.ch, ersatzteile-storen.com, waerchzueg.ch, renner-oertig.ch and aquaverde.ch.
Host names with two IP numbers: ns1.cyon.ch points to 2a01:ab20:0:185::2 and 185.174.216.2; ns2.cyon.ch points to 2001:67c:234::2 and 91.206.24.2
Mail Servers
koopmann.ch is served by a single mail server, mail.koopmann.ch.
Hostname mail.koopmann.ch resolves to two IPs: 2a01:ab20:0:4::112 and 149.126.4.112.