schulserver.ch - dns.ninja
schulserver.ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 80.74.154.155🇨🇭 ASN-METANET80.74.144.0/20 METANET AG, Switzerland | ||||||
| PTR | gusto.metanet.ch | ||||||
| NS | ch.pro.io ⭐ | ||||||
| A | 2a01:64c0:0:5000::19🇩🇪 CLOUDPIT2a01:64c0::/32 | ||||||
| PTR | ch.pro.io | ||||||
| A | 109.237.142.19🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | ch.pro.io | ||||||
| NS | nl.pro.io | ||||||
| A | 2a01:4f8:fff3:66::219🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | nl.pro.io | ||||||
| A | 176.9.166.219🇩🇪 Hetzner176.9.0.0/16 HETZNER-RZ-FKS-BLK4 | ||||||
| PTR | nl.pro.io | ||||||
| NS | p.dnh.net | ||||||
| A | 2a02:2b80:101:5000::19🇩🇪 CLOUDPIT2a02:2b80:101::/48 | ||||||
| PTR | p.dnh.net | ||||||
| A | 109.237.143.19🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | p.dnh.net | ||||||
| MX | mail.schulserver.ch ⭐ | ||||||
| A | 80.74.154.155🇨🇭 ASN-METANET80.74.144.0/20 METANET AG, Switzerland | ||||||
| PTR | gusto.metanet.ch | ||||||
| SOA | ch.pro.iohostmaster@metanet.ch 2021-08-01 #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 2026-08-09 #40 | ||||||
Subdomains
mail.schulserver.ch |
Same first word
DNS History
8 records (5 active, 3 former)
●NSch.pro.io2026-03-18 → 2026-08-09 · 3 obs
● 2026-03-18 03:24:58
● 2026-08-09 18:16:50
●NSnl.pro.io2026-03-18 → 2026-08-09 · 3 obs
● 2026-03-18 03:24:58
● 2026-08-09 18:16:50
○NSns.commerzzo.net2015-05-21 → 2017-11-25 · 4 obs
● 2017-11-25 00:27:26
○ 2026-03-18 03:24:58
○ 2026-08-09 18:16:50
○NSns2.commerzzo.net2015-05-21 → 2017-11-25 · 4 obs
● 2017-11-25 00:27:26
○ 2026-03-18 03:24:58
○ 2026-08-09 18:16:50
●NSp.dnh.net2026-03-18 → 2026-08-09 · 3 obs
● 2026-03-18 03:24:58
● 2026-08-09 18:16:50
●MXmail.schulserver.ch2015-05-21 → 2026-08-09 · 2 obs
● 2026-08-09 18:16:50
○A80.74.150.22015-05-21 → 2017-11-25 · 4 obs
● 2017-11-25 00:27:26
○ 2026-03-18 03:24:58
○ 2026-08-09 18:16:50
●A80.74.154.1552026-03-18 → 2026-08-09 · 3 obs
● 2026-03-18 03:24:58
● 2026-08-09 18:16:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| schulserver.ch | p.dnh.net, nl.pro.io, ch.pro.io | - |
✅ Authoritative Response
Server:109.237.143.19
NS records: p.dnh.net, nl.pro.io, ch.pro.io
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 987ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 80.74.154.155 |
| NS | 3 | p.dnh.net, nl.pro.io... |
| MX | 1 | mail.schulserver.ch (pri: 10) |
| SOA | 1 | ch.pro.io hostmaster.metanet.ch |
Analysis
Hierarchy
The domain mail.schulserver.ch falls under the parent schulserver.ch.
IP Addresses
schulserver.ch resolves to just one IP address, 80.74.154.155.
Two other host names, along with swissattest.ch, publicdata.ch and mail.munz-net.ch, also share IP numbers with schulserver.ch.
Name Servers
Three name servers are authoritative for schulserver.ch: ch.pro.io, nl.pro.io and p.dnh.net.
At least some of schulserver.ch's name servers are shared with other domains, for example rentra.ch, uozle.com, stmoritz-gemeinde.ch and two more.
ch.pro.io resolves to 109.237.142.19 and 2a01:64c0:0:5000::19. nl.pro.io resolves to 176.9.166.219 and 2a01:4f8:fff3:66::219. p.dnh.net resolves to 109.237.143.19 and 2a02:2b80:101:5000::19. All three hostnames point to two IP numbers each.
Mail Servers
The sole mail server for schulserver.ch is mail.schulserver.ch.
There is one IP number for mail.schulserver.ch: 80.74.154.155.