lernweb.ch - robtex.com
lernweb.ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a01:ab20:0:4::64🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s055.cyon.net | ||||||
| A | 149.126.4.64🇨🇭 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 | lernweb.ch ⭐ 🔒 | ||||||
| A | 2a01:ab20:0:4::64🇨🇭 CYON2a01:ab20::/32 | ||||||
| PTR | s055.cyon.net | ||||||
| A | 149.126.4.64🇨🇭 CYON149.126.0.0/21 cyon GmbH | ||||||
| PTR | s055.cyon.net | ||||||
| SOA | ns1.cyon.chserver@cyon.ch 2021-01-13 #77 | ||||||
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 2026-04-29 #23 | ||||||
MX for
lernweb.ch |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●MXlernweb.ch2015-06-22 → 2026-04-29 · 2 obs
● 2026-04-29 10:26:20
●A149.126.4.642017-05-16 → 2026-04-29 · 3 obs
● 2017-05-16 16:39:50
● 2026-04-29 10:26:20
○A194.126.200.512015-06-22 → 2016-09-16 · 4 obs
● 2016-09-16 03:25:56
○ 2017-05-16 16:39:50
○ 2026-04-29 10:26:20
●A2a01:ab20:0:4::642026-02-16 → 2026-04-29 · 3 obs
● 2026-02-16 02:54:42
● 2026-04-29 10:26:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| lernweb.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
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1054ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 149.126.4.64 |
| AAAA | 1 | 2a01:ab20:0:4::64 |
| NS | 2 | ns2.cyon.ch, ns1.cyon.ch |
| MX | 1 | lernweb.ch (pri: 0) |
| 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
Mail Server Role
lernweb.ch is the mail server for lernweb.ch.
IP Addresses
lernweb.ch resolves to two IP numbers: 2a01:ab20:0:4::64 and 149.126.4.64.
Other host names, for instance 3x4.ch, spice-harmony.com, mail.webkult.ch, krankenpflege-zuhause.ch and blesi-papa.ch share IP numbers with lernweb.ch.
Name Servers
lernweb.ch has two name servers: ns1.cyon.ch and ns2.cyon.ch.
lernweb.ch shares the same name server setup as other domains, for example genusspfad-gottardo.ch, trag-taschen.com, pragmatix.ch, gesunder-schlaf.ch and ettlin.com.
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
One mail server handles lernweb.ch.
lernweb.ch resolves to two IPs: 2a01:ab20:0:4::64 and 149.126.4.64.