sr3.ch - robtex.com
sr3.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:ab20:0:4::20🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s011.cyon.net | ||||||
| A | 149.126.4.20🇨🇭 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.sr3.ch ⭐ | ||||||
| A | 2a01:ab20:0:4::20🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s011.cyon.net | ||||||
| A | 149.126.4.20🇨🇭 CYON149.126.0.0/21 cyon GmbH | ||||||
| PTR | s011.cyon.net | ||||||
| TXT | v=spf1 include:spf.protection.cyon.net -all | ||||||
| SOA | ns1.cyon.chserver@cyon.ch 2026-01-15 #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 2026-07-25 #9 | ||||||
Previously MX for
sr3.ch |
Subdomains
mail.sr3.ch |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●MXmail.sr3.ch2026-06-28 → 2026-07-25 · 3 obs
● 2026-06-28 15:29:22
● 2026-07-25 02:48:10
○MXsr3.ch2015-07-19 → 2021-01-05 · 4 obs
● 2021-01-05 11:55:10
○ 2026-06-28 15:29:22
○ 2026-07-25 02:48:10
●A149.126.4.202017-04-09 → 2026-07-25 · 3 obs
● 2017-04-09 04:30:34
● 2026-07-25 02:48:10
○A194.126.200.412015-07-19 → 2016-04-30 · 4 obs
● 2016-04-30 04:26:36
○ 2017-04-09 04:30:34
○ 2026-07-25 02:48:10
●A2a01:ab20:0:4::202021-01-05 → 2026-07-25 · 3 obs
● 2021-01-05 11:55:10
● 2026-07-25 02:48:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, d.nic.ch, f.nic.ch, b.nic.ch... | - |
| sr3.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 sr3.ch (unsigned zone)
⏱️ Timing
Total: 480ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 149.126.4.20 |
| AAAA | 1 | 2a01:ab20:0:4::20 |
| NS | 2 | ns2.cyon.ch, ns1.cyon.ch |
| MX | 1 | mail.sr3.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
sr3.ch is the parent zone for mail.sr3.ch.
IP Addresses
sr3.ch directs to two IP numbers, 149.126.4.20 and 2a01:ab20:0:4::20
Among the host names that share IP numbers with sr3.ch are (0x787878)ing.net, arizonapool.ch, mail.sr2.ch and two others.
Name Servers
The NS records for sr3.ch delegate to ns1.cyon.ch and ns2.cyon.ch.
sr3.ch has the same name server delegation as a number of other domains, such as zentrum-spuhler.ch, firearm.ch, promacon.ch and two more.
sr3.ch and other domains like isaver.ch 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
sr3.ch routes its mail through a single mail server, mail.sr3.ch.
The host mail.sr3.ch resolves to 149.126.4.20 and 2a01:ab20:0:4::20 — two IP addresses.