duval.ch - robtex.com
duval.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:ab20:0:4::144🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s135.cyon.net | ||||||
| A | 149.126.4.144🇨🇭 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.duval.ch ⭐ | ||||||
| A | 2a01:ab20:0:4::144🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s135.cyon.net | ||||||
| A | 149.126.4.144🇨🇭 CYON149.126.0.0/21 cyon GmbH | ||||||
| PTR | s135.cyon.net | ||||||
| TXT | v=spf1 include:spf.protection.cyon.net -all | ||||||
| SOA | ns1.cyon.chserver@cyon.ch 2026-03-05 #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.chdns-operation@switch.ch 2026-08-14 #39 | ||||||
Subdomains
mail.duval.ch |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSns1.cyon.ch2026-06-13 → 2026-08-14 · 3 obs
● 2026-06-13 08:29:16
● 2026-08-14 18:37:26
○NSns1.webland.ch2015-06-26 → 2017-05-18 · 4 obs
● 2017-05-18 00:53:10
○ 2026-06-13 08:29:16
○ 2026-08-14 18:37:26
●NSns2.cyon.ch2026-06-13 → 2026-08-14 · 3 obs
● 2026-06-13 08:29:16
● 2026-08-14 18:37:26
○NSns2.webland.ch2015-06-26 → 2017-05-18 · 4 obs
● 2017-05-18 00:53:10
○ 2026-06-13 08:29:16
○ 2026-08-14 18:37:26
○NSns3.webland.ch2015-06-26 → 2017-05-18 · 4 obs
● 2017-05-18 00:53:10
○ 2026-06-13 08:29:16
○ 2026-08-14 18:37:26
○NSns4.webland.ch2015-06-26 → 2017-05-18 · 4 obs
● 2017-05-18 00:53:10
○ 2026-06-13 08:29:16
○ 2026-08-14 18:37:26
●MXmail.duval.ch2015-06-26 → 2026-08-14 · 2 obs
● 2026-08-14 18:37:26
●A149.126.4.1442026-06-13 → 2026-08-14 · 3 obs
● 2026-06-13 08:29:16
● 2026-08-14 18:37:26
●A2a01:ab20:0:4::1442026-06-13 → 2026-08-14 · 3 obs
● 2026-06-13 08:29:16
● 2026-08-14 18:37:26
○A92.43.217.1062015-06-26 → 2017-05-18 · 4 obs
● 2017-05-18 00:53:10
○ 2026-06-13 08:29:16
○ 2026-08-14 18:37:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | b.nic.ch, d.nic.ch, a.nic.ch, f.nic.ch... | - |
| duval.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 duval.ch (unsigned zone)
⏱️ Timing
Total: 470ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 149.126.4.144 |
| AAAA | 1 | 2a01:ab20:0:4::144 |
| NS | 2 | ns2.cyon.ch, ns1.cyon.ch |
| MX | 1 | mail.duval.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
duval.ch serves as the parent of mail.duval.ch.
IP Addresses
duval.ch resolves to the IP addresses 149.126.4.144 and 2a01:ab20:0:4::144
achaos.ch, mail.biketotal.ch, amicanis.ch plus two other host names have IP numbers in common with duval.ch.
Name Servers
Two name servers handle the delegation for duval.ch: ns1.cyon.ch and ns2.cyon.ch.
The name server configuration of duval.ch is shared with other domains, for instance seegang.ch, chanoyu-tea.ch, babanin.com and two others.
duval.ch has a partial name server overlap with other domains — among them on-eyes-photography.ch and inlabtec.com.
It is common to find these name servers paired with the name servers ns3.cyon.ch.
ns1.cyon.ch and ns2.cyon.ch both carry two IP addresses. The A records for ns1.cyon.ch are 185.174.216.2 and 2a01:ab20:0:185::2; the A records for ns2.cyon.ch are 91.206.24.2 and 2001:67c:234::2.
Mail Servers
duval.ch uses one mail server — mail.duval.ch.
mail.duval.ch has two IP addresses: 149.126.4.144 and 2a01:ab20:0:4::144.