proskill.ch - dns.ninja
proskill.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.210.7.234🇫🇷 OVH51.210.0.0/16 | ||||||
| PTR | omikron.nucore.net | ||||||
| NS | ns3.nzym.net ⭐ | ||||||
| A | 138.201.87.122🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4 | ||||||
| PTR | alpha.nucore.net | ||||||
| NS | ns1.nzym.net | ||||||
| A | 2001:470:26:24::1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| A | 144.76.50.5🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1 | ||||||
| PTR | beta.nucore.net | ||||||
| MX | mail.proskill.ch ⭐ | ||||||
| A | 51.210.7.234🇫🇷 OVH51.210.0.0/16 | ||||||
| PTR | omikron.nucore.net | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | ns3.nzym.netpostmaster@proskill.ch 2021-09-21 #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 2026-08-11 #35 | ||||||
Subdomains
mail.proskill.ch |
Same first word
Similar names
skillpro.ru |
skillpro.my |
skillpro.co.in |
skillpro.com.br |
priskoll.nu |
skillpro.ir |
skillpro.com |
skillpro.in |
prokills.ru |
DNS History
5 records (4 active, 1 former)
●MXmail.proskill.ch2015-07-14 → 2026-08-11 · 2 obs
● 2026-08-11 16:31:50
●A51.210.7.2342026-02-17 → 2026-08-11 · 3 obs
● 2026-02-17 02:10:40
● 2026-08-11 16:31:50
○A92.222.22.622015-07-14 → 2017-06-15 · 4 obs
● 2017-06-15 03:08:22
○ 2026-02-17 02:10:40
○ 2026-08-11 16:31:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | b.nic.ch, e.nic.ch, a.nic.ch, d.nic.ch... | - |
| proskill.ch | ns1.nzym.net, ns3.nzym.net | - |
✅ Authoritative Response
Server:144.76.50.5
NS records: ns1.nzym.net, ns3.nzym.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for proskill.ch (unsigned zone)
⏱️ Timing
Total: 838ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.210.7.234 |
| NS | 2 | ns3.nzym.net, ns1.nzym.net |
| MX | 1 | mail.proskill.ch (pri: 10) |
| TXT | 1 | v=spf1 a mx ~all |
| SOA | 1 | ns3.nzym.net postmaster.proskill.ch |
Analysis
Hierarchy
mail.proskill.ch is delegated beneath proskill.ch.
IP Addresses
proskill.ch resolves to just one IP address, 51.210.7.234.
Two other host names, along with quci.ch, mail.cloudwerk.ch and cloudwerk.org, also share IP numbers with proskill.ch.
Name Servers
proskill.ch is served by two delegated name servers, ns1.nzym.net and ns3.nzym.net.
proskill.ch and other domains — nucore.biz, core.li and xn--q-6fa.net among them — share the same NS delegation.
There is at least partial name server overlap between proskill.ch and other domains — n0de.ch, xn--0caa.net, server(0x706f726e).ch and two more among them.
The name servers ns1.nucore.net, ns0.nzym.net and ns2.nzym.net are often found in combination with these name servers.
Host names that have two IP addresses:
ns1.nzym.net maps to two IP addresses — 144.76.50.5 and 2001:470:26:24::1.
Host names that point to one IP address:
ns3.nzym.net points to the IP address 138.201.87.122.
Mail Servers
The sole mail server for proskill.ch is mail.proskill.ch.
There is one IP number for mail.proskill.ch: 51.210.7.234.