nertz.ch - robtex.com
nertz.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.nertz.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 2024-06-06 #0 | ||||||
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 2026-08-03 #13 | ||||||
Subdomains
mail.nertz.ch |
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
○NSns.hostcenter.com2015-06-30 → 2016-12-05 · 4 obs
● 2016-12-05 05:39:20
○ 2026-06-13 02:59:20
○ 2026-08-03 04:57:54
●NSns1.cyon.ch2026-06-13 → 2026-08-03 · 3 obs
● 2026-06-13 02:59:20
● 2026-08-03 04:57:54
●NSns2.cyon.ch2026-06-13 → 2026-08-03 · 3 obs
● 2026-06-13 02:59:20
● 2026-08-03 04:57:54
○NSns2.hostcenter.com2015-06-30 → 2016-12-05 · 4 obs
● 2016-12-05 05:39:20
○ 2026-06-13 02:59:20
○ 2026-08-03 04:57:54
○MXmail-fwd.mx.hostcenter.com2015-06-30 → 2016-12-05 · 4 obs
● 2016-12-05 05:39:20
○ 2026-06-13 02:59:20
○ 2026-08-03 04:57:54
●MXmail.nertz.ch2026-06-13 → 2026-08-03 · 3 obs
● 2026-06-13 02:59:20
● 2026-08-03 04:57:54
●A149.126.4.1122026-06-13 → 2026-08-03 · 3 obs
● 2026-06-13 02:59:20
● 2026-08-03 04:57:54
○A195.186.81.472015-06-30 → 2016-12-05 · 4 obs
● 2016-12-05 05:39:20
○ 2026-06-13 02:59:20
○ 2026-08-03 04:57:54
●A2a01:ab20:0:4::1122026-06-13 → 2026-08-03 · 3 obs
● 2026-06-13 02:59:20
● 2026-08-03 04:57:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | d.nic.ch, e.nic.ch, b.nic.ch, a.nic.ch... | - |
| nertz.ch | ns1.cyon.ch, ns2.cyon.ch | 4 records |
✅ Authoritative Response
Server:91.206.24.2
NS records: ns1.cyon.ch, ns2.cyon.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for nertz.ch (unsigned zone)
⏱️ Timing
Total: 460ms | 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.nertz.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 (ns2.cyon.ch, ns1.cyon.ch, ns2.cyon.ch...)
Analysis
Hierarchy
nertz.ch serves as the parent of mail.nertz.ch.
IP Addresses
nertz.ch directs to two IP numbers, 149.126.4.112 and 2a01:ab20:0:4::112
phaseaway.com, eduprofiler.de, tectonic1827.com and two other host names share IP numbers with nertz.ch.
Name Servers
The NS records for nertz.ch delegate to ns1.cyon.ch and ns2.cyon.ch.
nertz.ch uses the same name servers as several other domains — among them iamgod.ch, alpenstil.com, we-are.ch and two more.
nertz.ch and other domains like bjinstitute.org share at least a portion of their name servers.
ns1.cyon.ch resolves to 185.174.216.2 and 2a01:ab20:0:185::2. Likewise, ns2.cyon.ch resolves to 91.206.24.2 and 2001:67c:234::2 — two IP addresses apiece.
Mail Servers
Mail for nertz.ch is handled by a single mail server, mail.nertz.ch.
mail.nertz.ch has two IP addresses: 149.126.4.112 and 2a01:ab20:0:4::112.