edusrv.ch - robtex.com
edusrv.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:ab20:0:4::63🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s054.cyon.net | ||||||
| A | 149.126.4.63🇨🇭 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.edusrv.ch ⭐ | ||||||
| A | 2a01:ab20:0:4::63🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s054.cyon.net | ||||||
| A | 149.126.4.63🇨🇭 CYON149.126.0.0/21 cyon GmbH | ||||||
| PTR | s054.cyon.net | ||||||
| TXT | v=spf1 include:spf.protection.cyon.net -all | ||||||
| SOA | ns1.cyon.chserver@cyon.ch 2026-05-19 #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 2026-08-03 #16 | ||||||
Previously MX for
Subdomains
mail.edusrv.ch |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSns1.cyon.ch2015-11-01 → 2026-08-03 · 3 obs
● 2015-11-01 18:45:54
● 2026-08-03 06:57:34
○NSns1.swisscentral.ch2015-06-21 → 2015-06-21 · 3 obs
○ 2015-11-01 18:45:54
○ 2026-08-03 06:57:34
●NSns2.cyon.ch2015-11-01 → 2026-08-03 · 3 obs
● 2015-11-01 18:45:54
● 2026-08-03 06:57:34
○NSns2.swisscentral.ch2015-06-21 → 2015-06-21 · 3 obs
○ 2015-11-01 18:45:54
○ 2026-08-03 06:57:34
○MXedusrv.ch2015-11-01 → 2016-12-19 · 5 obs
● 2015-11-01 18:45:54
● 2016-12-19 13:33:42
○ 2026-06-13 09:15:34
○ 2026-08-03 06:57:34
●MXmail.edusrv.ch2015-06-21 → 2026-08-03 · 5 obs
○ 2015-11-01 18:45:54
○ 2016-12-19 13:33:42
● 2026-06-13 09:15:34
● 2026-08-03 06:57:34
●A149.126.4.632026-06-13 → 2026-08-03 · 3 obs
● 2026-06-13 09:15:34
● 2026-08-03 06:57:34
○A194.126.200.512015-11-01 → 2016-12-19 · 5 obs
● 2015-11-01 18:45:54
● 2016-12-19 13:33:42
○ 2026-06-13 09:15:34
○ 2026-08-03 06:57:34
●A2a01:ab20:0:4::632026-06-13 → 2026-08-03 · 3 obs
● 2026-06-13 09:15:34
● 2026-08-03 06:57:34
○A78.46.75.442015-06-21 → 2015-06-21 · 3 obs
○ 2015-11-01 18:45:54
○ 2026-08-03 06:57:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| edusrv.ch | ns2.cyon.ch, ns1.cyon.ch | 4 records |
✅ Authoritative Response
Server:91.206.24.2
NS records: ns2.cyon.ch, ns1.cyon.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for edusrv.ch (unsigned zone)
⏱️ Timing
Total: 1179ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 149.126.4.63 |
| AAAA | 1 | 2a01:ab20:0:4::63 |
| NS | 2 | ns1.cyon.ch, ns2.cyon.ch |
| MX | 1 | mail.edusrv.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
mail.edusrv.ch is a subdomain of edusrv.ch.
IP Addresses
edusrv.ch points to the IP addresses 149.126.4.63 and 2a01:ab20:0:4::63
mail.pervap.de, shoc.ch, s054.cyon.net plus two other host names have IP numbers in common with edusrv.ch.
Name Servers
edusrv.ch is delegated to two name servers: ns1.cyon.ch and ns2.cyon.ch.
The name server configuration of edusrv.ch is shared with other domains, for instance gstaadrealestateservices.ch, fratt.ch, verges.org and two others.
edusrv.ch has overlapping name servers with several other domains — among them nogi.ch, dynatag.com, noen.ch and gra.ch.
ns1.cyon.ch and ns2.cyon.ch each resolve to two IP addresses: ns1.cyon.ch points to 185.174.216.2 and 2a01:ab20:0:185::2, while ns2.cyon.ch points to 91.206.24.2 and 2001:67c:234::2.
Mail Servers
edusrv.ch uses one mail server — mail.edusrv.ch.
mail.edusrv.ch resolves to two IP numbers — 149.126.4.63 and 2a01:ab20:0:4::63.