tutorial.ch - robtex.com
tutorial.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 195.34.73.15🇨🇭 Host4all-AS195.34.72.0/23 HOST4ALL-NETWORK1 | ||||||
| PTR | uranus.safe-order.ch | ||||||
| NS | ns1.host4all.net ⭐ | ||||||
| A | 195.34.73.50🇨🇭 Host4all-AS195.34.72.0/23 HOST4ALL-NETWORK1 | ||||||
| PTR | ns1.host4all.net | ||||||
| NS | ns2.host4all.net | ||||||
| A | 5.1.99.201🇨🇭 AlpineDC5.1.96.0/21 SA | ||||||
| PTR | ns2.host4all.net | ||||||
| MX | tutorial.ch ⭐ | ||||||
| A | 195.34.73.15🇨🇭 Host4all-AS195.34.72.0/23 HOST4ALL-NETWORK1 | ||||||
| PTR | uranus.safe-order.ch | ||||||
| SOA | ns1.host4all.netsmorier@host4all.net 2026-04-04 #1 | ||||||
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 2026-04-24 #12 | ||||||
MX for
tutorial.ch |
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
●NSns1.host4all.net2015-07-31 → 2026-04-24 · 2 obs
● 2026-04-24 04:53:18
○NSns1.safe-order.ch2015-07-31 → 2016-06-18 · 4 obs
● 2016-06-18 03:35:30
○ 2017-02-13 23:56:42
○ 2026-04-24 04:53:18
●NSns2.host4all.net2015-07-31 → 2026-04-24 · 2 obs
● 2026-04-24 04:53:18
○MXmail.tutorial.ch2015-07-31 → 2016-06-18 · 4 obs
● 2016-06-18 03:35:30
○ 2017-02-13 23:56:42
○ 2026-04-24 04:53:18
●MXtutorial.ch2017-02-13 → 2026-04-24 · 3 obs
● 2017-02-13 23:56:42
● 2026-04-24 04:53:18
●A195.34.73.152026-02-17 → 2026-04-24 · 3 obs
● 2026-02-17 21:50:40
● 2026-04-24 04:53:18
○A195.34.73.252015-07-31 → 2017-02-13 · 4 obs
● 2017-02-13 23:56:42
○ 2026-02-17 21:50:40
○ 2026-04-24 04:53:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| tutorial.ch | ns1.host4all.net, ns2.host4all.net | - |
✅ Authoritative Response
Server:5.1.99.201
NS records: ns1.host4all.net, ns2.host4all.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tutorial.ch (unsigned zone)
⏱️ Timing
Total: 1037ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.34.73.15 |
| NS | 2 | ns1.host4all.net, ns2.host4all.net |
| MX | 1 | tutorial.ch (pri: 0) |
| SOA | 1 | ns1.host4all.net smorier.host4all.net |
Analysis
Mail Server Role
tutorial.ch serves as the mail server for tutorial.ch.
IP Addresses
tutorial.ch points to a single IP address: 195.34.73.15.
Other host names such as b2bhost.ch, uranus.safe-order.ch, qbo.ch, volieres.ch and abcwin.ch share IP numbers with tutorial.ch.
Name Servers
tutorial.ch is delegated to two name servers: ns1.host4all.net and ns2.host4all.net.
tutorial.ch uses the same name server setup as other domains, including topmusic.ch, pixelmix.net, promu.ch, mars.safe-order.ch and edof.org.
tutorial.ch shares some name servers with other domains, for example ns1.host4all.net.
Hostnames with a single IP
ns1.host4all.net resolves to: 195.34.73.50.
ns2.host4all.net resolves to: 5.1.99.201.
Mail Servers
Mail for tutorial.ch is handled by a single mail server, tutorial.ch.
Host tutorial.ch points to IP 195.34.73.15.