polytechnik.ch - dns.ninja
polytechnik.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1680:101:8bd::1🇨🇭 SOLNET2001:1680::/32 SolNet Switzerland | ||||||
| A | 185.101.158.113🇨🇭 hosttech-AS185.101.158.0/24 | ||||||
| NS | ns1.hosttech.ch ⭐ | ||||||
| A | 2001:1680:101:1::2🇨🇭 SOLNET2001:1680::/32 SolNet Switzerland | ||||||
| A | 82.220.34.231🇨🇭 SOLNET82.220.0.0/16 SolNet Switzerland | ||||||
| NS | ns2.hosttech.ch | ||||||
| A | 2001:1af8:4700:a120:4::2🇳🇱 LEASEWEB-NL-AMS-012001:1af8::/32 NL-LEASEWEB-20040408 Leaseweb | ||||||
| A | 5.79.97.178🇳🇱 LEASEWEB-NL-AMS-015.79.64.0/18 LEASEWEB | ||||||
| PTR | ns2.tripledns.eu | ||||||
| NS | ns3.hosttech.ch | ||||||
| A | 2a01:4f8:c0c:289d::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 94.130.74.45🇩🇪 Hetzner94.130.0.0/16 HETZNER-DC | ||||||
| PTR | ns3.tripledns.eu | ||||||
| MX | exchange.hosttech.eu ⭐ | ||||||
| A | 82.220.91.111🇨🇭 SOLNET82.220.0.0/16 SolNet Switzerland | ||||||
| PTR | exchange.hosttech.eu | ||||||
| TXT | v=spf1 +mx +a include:_spf.mail.hostserv.eu ~all | ||||||
| SOA | ns1.hosttech.chdns@hosttech.eu 2026-04-01 #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 2026-06-27 #23 | ||||||
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
○NSns.hostcenter.com2015-08-15 → 2017-07-06 · 4 obs
● 2017-07-06 21:03:36
○ 2026-02-28 23:08:02
○ 2026-06-27 09:57:54
●NSns1.hosttech.ch2026-02-28 → 2026-06-27 · 3 obs
● 2026-02-28 23:08:02
● 2026-06-27 09:57:54
○NSns2.hostcenter.com2015-08-15 → 2017-07-06 · 4 obs
● 2017-07-06 21:03:36
○ 2026-02-28 23:08:02
○ 2026-06-27 09:57:54
●NSns2.hosttech.ch2026-02-28 → 2026-06-27 · 3 obs
● 2026-02-28 23:08:02
● 2026-06-27 09:57:54
●NSns3.hosttech.ch2026-02-28 → 2026-06-27 · 3 obs
● 2026-02-28 23:08:02
● 2026-06-27 09:57:54
●MXexchange.hosttech.eu2026-02-28 → 2026-06-27 · 3 obs
● 2026-02-28 23:08:02
● 2026-06-27 09:57:54
○MXpolytechnik-ch.mail.protection.outlook.com2015-08-15 → 2017-07-06 · 4 obs
● 2017-07-06 21:03:36
○ 2026-02-28 23:08:02
○ 2026-06-27 09:57:54
●A185.101.158.1132026-02-28 → 2026-06-27 · 3 obs
● 2026-02-28 23:08:02
● 2026-06-27 09:57:54
○A195.186.81.252015-08-15 → 2017-07-06 · 4 obs
● 2017-07-06 21:03:36
○ 2026-02-28 23:08:02
○ 2026-06-27 09:57:54
●A2001:1680:101:8bd::12026-04-24 → 2026-06-27 · 3 obs
● 2026-04-24 07:02:50
● 2026-06-27 09:57:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | d.nic.ch, e.nic.ch, a.nic.ch, b.nic.ch... | - |
| polytechnik.ch | ns3.hosttech.ch, ns1.hosttech.ch, ns2.hosttech.ch | 6 records |
✅ Authoritative Response
Server:5.79.97.178
NS records: ns3.hosttech.ch, ns1.hosttech.ch, ns2.hosttech.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for polytechnik.ch (unsigned zone)
⏱️ Timing
Total: 876ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.101.158.113 |
| AAAA | 1 | 2001:1680:101:8bd::1 |
| NS | 3 | ns3.hosttech.ch, ns2.hosttech.ch... |
| MX | 1 | exchange.hosttech.eu (pri: 10) |
| TXT | 1 | v=spf1 +mx +a include:_spf.mail.hostserv |
| SOA | 1 | ns1.hosttech.ch dns.hosttech.eu |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns3.hosttech.ch, ns2.hosttech.ch, ns1.hosttech.ch...)
Analysis
IP Addresses
polytechnik.ch has two IP addresses: 185.101.158.113 and 2001:1680:101:8bd::1
Two other host names, along with holochart.com, wikimedsuisse.com and hosttech.domains, also share IP numbers with polytechnik.ch.
Name Servers
polytechnik.ch has three name servers — ns1.hosttech.ch, ns2.hosttech.ch and ns3.hosttech.ch.
There is at least partial name server overlap between polytechnik.ch and other domains — manance.com, zeiss-neutra.ch, bullet-with-your-name.com and two more among them.
These name servers regularly appear alongside ns1.hostserv.eu, ns2.hostserv.eu, ns3.hostserv.eu and 3 other name servers in NS record sets.
Each of ns1.hosttech.ch, ns2.hosttech.ch and ns3.hosttech.ch points to two IP numbers. ns1.hosttech.ch points to 82.220.34.231 and 2001:1680:101:1::2. ns2.hosttech.ch points to 5.79.97.178 and 2001:1af8:4700:a120:4::2. ns3.hosttech.ch points to 94.130.74.45 and 2a01:4f8:c0c:289d::2.
Mail Servers
The sole mail server for polytechnik.ch is exchange.hosttech.eu.
Among the domains sharing a mail server setup with polytechnik.ch are mc-transports.com, triest-verlag.ch, wertvollgeniessen.at and two others.
There is at least a partial MX overlap between polytechnik.ch and other domains, including rumbu.ch, medam.ch, leaveitallbehinders.ch and two others.
exchange.hosttech.eu points to one IP number — 82.220.91.111.