stack41.ch - robtex.com
stack41.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f8:272:29de::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hera.t3c.ch | ||||||
| A | 142.132.133.236🇩🇪 Hetzner142.132.128.0/17 HETZNER-DC | ||||||
| NS | ns1.t3c.ch ⭐ | ||||||
| NS | ns1.first-ns.de | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| NS | robotns2.second-ns.de | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | robotns2.second-ns.de | ||||||
| NS | robotns3.second-ns.com | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| MX | hera.t3c.ch ⭐ | ||||||
| A | 2a01:4f8:272:29de::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hera.t3c.ch | ||||||
| A | 142.132.133.236🇩🇪 Hetzner142.132.128.0/17 HETZNER-DC | ||||||
| PTR | hera.t3c.ch | ||||||
| TXT | v=spf1 +a +mx +a:hera.t3c.ch ip4:142.132.133.236 -all | ||||||
| SOA | ns1.t3c.chnoreply@t3c.ch 2026-08-14 #2 | ||||||
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 2026-08-29 #17 | ||||||
Same first word
Similar names
Previous names
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DNS History
7 records (7 active, 0 former)
●NSns1.first-ns.de2026-08-19 → 2026-08-29 · 2 obs
● 2026-08-29 07:01:46
●NSrobotns2.second-ns.de2026-08-19 → 2026-08-29 · 2 obs
● 2026-08-29 07:01:46
●NSrobotns3.second-ns.com2026-08-19 → 2026-08-29 · 2 obs
● 2026-08-29 07:01:46
●A142.132.133.2362026-08-19 → 2026-08-29 · 2 obs
● 2026-08-29 07:01:46
●A2a01:4f8:272:29de::22026-08-19 → 2026-08-29 · 2 obs
● 2026-08-29 07:01:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| stack41.ch | ns1.t3c.ch, robotns2.second-ns.de, ns1.first-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:193.47.99.3
NS records: ns1.t3c.ch, robotns2.second-ns.de, ns1.first-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for stack41.ch (unsigned zone)
⏱️ Timing
Total: 766ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 142.132.133.236 |
| AAAA | 1 | 2a01:4f8:272:29de::2 |
| NS | 4 | robotns2.second-ns.de, robotns3.second-ns.com... |
| MX | 1 | hera.t3c.ch (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:hera.t3c.ch ip4:142.132 |
| SOA | 1 | ns1.t3c.ch noreply.t3c.ch |
Analysis
IP Addresses
stack41.ch points to the IP addresses 142.132.133.236 and 2a01:4f8:272:29de::2
Among others, page4you.ch, t3c.ch, hb-kcv.ch and hera.t3c.ch resolve to the same IP numbers as stack41.ch.
Name Servers
The NS records for stack41.ch point to four name servers: ns1.t3c.ch, robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
There is at least partial name server overlap between stack41.ch and other domains — mate-teeversand.de, stalkerhammer.com, melsport.de and two more among them.
The name servers hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de are often found in combination with these name servers.
robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de all resolve to exactly two IP numbers apiece: robotns3.second-ns.com → 193.47.99.3 and 2001:67c:192c::add:a3; ns1.first-ns.de → 213.239.242.238 and 2a01:4f8:0:a101::a:1; robotns2.second-ns.de → 213.133.100.103 and 2a01:4f8:0:1::5ddc:2.
Mail Servers
The sole mail server for stack41.ch is hera.t3c.ch.
Other domains such as page4you.ch, t3c.ch and hb-kcv.ch share the same mail server setup as stack41.ch.
hera.t3c.ch carries two IP numbers: 142.132.133.236 and 2a01:4f8:272:29de::2.