sysadmin.ch - dns.ninja
sysadmin.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f8:c013:c312::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 91.98.43.123🇮🇷 Hetzner91.98.0.0/16 HETZNER-DC | ||||||
| NS | ns2.hostpoint.ch ⭐ | ||||||
| A | 2a00:d70:0:b::1d🇨🇭 HOSTPOINT-AS2a00:d70::/32 Hostpoint AG, Switzerland | ||||||
| PTR | ns2.hostpoint.ch | ||||||
| A | 217.26.53.254🇨🇭 HOSTPOINT-AS217.26.48.0/20 Hostpoint AG, Switzerland | ||||||
| PTR | ns2.hostpoint.ch | ||||||
| NS | ns.hostpoint.ch | ||||||
| A | 2a00:d70:0:b::d🇨🇭 HOSTPOINT-AS2a00:d70::/32 Hostpoint AG, Switzerland | ||||||
| PTR | ns.hostpoint.ch | ||||||
| A | 217.26.51.254🇨🇭 HOSTPOINT-AS217.26.48.0/20 Hostpoint AG, Switzerland | ||||||
| PTR | ns.hostpoint.ch | ||||||
| NS | ns3.hostpoint.ch | ||||||
| A | 2a00:d70:0:b::b🇨🇭 HOSTPOINT-AS2a00:d70::/32 Hostpoint AG, Switzerland | ||||||
| PTR | ns3.hostpoint.ch | ||||||
| A | 217.26.60.250🇨🇭 HOSTPOINT-AS217.26.48.0/20 Hostpoint AG, Switzerland | ||||||
| PTR | ns3.hostpoint.ch | ||||||
| MX | mail.sysadmin.ch ⭐ | ||||||
| A | 2a01:4f8:c013:c312::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 91.98.43.123🇮🇷 Hetzner91.98.0.0/16 HETZNER-DC | ||||||
| PTR | static.123.43.98.91.clients.your-server.de | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | ns.hostpoint.chhostmaster@hostpoint.ch serial=1792627200 | ||||||
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 2026-10-26 #44 | ||||||
Subdomains
mail.sysadmin.ch |
Same first word
Similar names
Previous names
Next names
sysadminday.ch |
sysadmins.ch |
sysadvice.ch |
sysag.ch |
sysalpin.ch |
sysana.ch |
sysap.ch |
sysar.ch |
sysba.ch |
sysback.ch |
sysbase.ch |
sysbb.ch |
sysbiover.ch |
sysblue.ch |
sysbo.ch |
sysbox.ch |
sysca.ch |
syscad.ch |
syscall.ch |
DNS History
9 records (6 active, 3 former)
●NSns.hostpoint.ch2026-09-29 → 2026-10-26 · 3 obs
● 2026-09-29 04:10:00
● 2026-10-26 21:43:08
●NSns2.hostpoint.ch2026-09-29 → 2026-10-26 · 3 obs
● 2026-09-29 04:10:00
● 2026-10-26 21:43:08
●NSns3.hostpoint.ch2026-09-29 → 2026-10-26 · 3 obs
● 2026-09-29 04:10:00
● 2026-10-26 21:43:08
○NSns55.kreativmedia.ch2015-07-14 → 2017-03-21 · 4 obs
● 2017-03-21 23:18:48
○ 2026-09-29 04:10:00
○ 2026-10-26 21:43:08
○NSns56.kreativmedia.ch2015-07-14 → 2017-03-21 · 4 obs
● 2017-03-21 23:18:48
○ 2026-09-29 04:10:00
○ 2026-10-26 21:43:08
●MXmail.sysadmin.ch2015-07-14 → 2026-10-26 · 2 obs
● 2026-10-26 21:43:08
●A2a01:4f8:c013:c312::12026-09-29 → 2026-10-26 · 3 obs
● 2026-09-29 04:10:00
● 2026-10-26 21:43:08
○A80.74.151.812015-07-14 → 2017-03-21 · 4 obs
● 2017-03-21 23:18:48
○ 2026-09-29 04:10:00
○ 2026-10-26 21:43:08
●A91.98.43.1232026-09-29 → 2026-10-26 · 3 obs
● 2026-09-29 04:10:00
● 2026-10-26 21:43:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | 10 records |
| sysadmin.ch | ns3.hostpoint.ch, ns2.hostpoint.ch, ns.hostpoint.ch | 6 records |
✅ Authoritative Response
Server:217.26.51.254
NS records: ns3.hostpoint.ch, ns2.hostpoint.ch, ns.hostpoint.ch
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1164ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.98.43.123 |
| AAAA | 1 | 2a01:4f8:c013:c312::1 |
| NS | 3 | ns3.hostpoint.ch, ns.hostpoint.ch... |
| MX | 1 | mail.sysadmin.ch (pri: 10) |
| TXT | 1 | v=spf1 a mx ~all |
| SOA | 1 | ns.hostpoint.ch hostmaster.hostpoint.ch |
📌 Glue Records Collected
Total: 16
In-bailiwick: 10 (a.nic.ch, b.nic.ch, d.nic.ch...)
Out-of-bailiwick: 6 (ns3.hostpoint.ch, ns2.hostpoint.ch, ns.hostpoint.ch...)
Analysis
Hierarchy
The domain mail.sysadmin.ch falls under the parent sysadmin.ch.
IP Addresses
sysadmin.ch points to the IP addresses 91.98.43.123 and 2a01:4f8:c013:c312::1
Other host names, among them mail.sysadmin.ch and brudis.ch, have IP numbers in common with sysadmin.ch.
Name Servers
Three name servers are authoritative for sysadmin.ch: ns2.hostpoint.ch, ns3.hostpoint.ch and ns.hostpoint.ch.
At least some of sysadmin.ch's name servers are shared with other domains, for example netto-cars24.ch, alpfex.de, rclassics.com and two more.
ns2.hostpoint.ch resolves to 217.26.53.254 and 2a00:d70:0:b::1d. ns3.hostpoint.ch resolves to 217.26.60.250 and 2a00:d70:0:b::b. ns.hostpoint.ch resolves to 217.26.51.254 and 2a00:d70:0:b::d. All three hostnames point to two IP numbers each.
Mail Servers
Mail for sysadmin.ch is handled by a single mail server, mail.sysadmin.ch.
mail.sysadmin.ch directs to two IP numbers, 91.98.43.123 and 2a01:4f8:c013:c312::1.