polytechna.ch - dns.ninja

`polytechna.ch`

DNSSEC	🔒 Signed (DS record present)
A	116.203.248.98^{🇩🇪 Hetzner116.203.0.0/16 HETZNER-DC}
		PTR	`gremlin268.lcube-server.de`
NS	`dns1.swizzonic.ch` ⭐
		A	2a01:8100:2911::2:184:5^{🇮🇹 REGISTER-AS2a01:8100:2000::/36}
		A	81.88.61.5^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
			PTR	`host-81-88-61-5.dedicatedservers.it`
NS	`dns2.swizzonic.ch`
		A	2a01:8100:2901::1:183:202^{🇮🇹 REGISTER-AS2a01:8100:2000::/36}
		A	81.88.58.219^{🇮🇹 REGISTER-AS81.88.58.0/24 Register.IT S.p.A. prefix}
MX	`polytechna-ch.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::2^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-du2pr03cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::d^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db6pr03cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::9^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr04cu00801.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::c^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00304.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.5^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du2pr03cu00105.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.73.6^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am6pr04cu00306.inbound.protection.outlook.com`
TXT	`v=spf1 ip4:46.140.123.206 include:spf.protection.outlook.com -all`
TXT	`swisssign-check=2m2Wwb8Q_meoE4Tg6rF-kFpNFBI`
SOA	`dns1.swizzonic.ch`hostmaster@swizzonic.ch 2026-04-08 #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.ch`dns-operation@switch.ch 2026-08-08 #34

Same first word

polytechna.cz

polytechna.com

polytechna.ch

polytechna.eu

Similar names

DNS History

8 records (4 active, 4 former)

●NSdns1.swizzonic.ch2026-03-18 → 2026-08-08 · 3 obs

○ 2017-11-12 12:57:34
● 2026-03-18 13:24:34
● 2026-08-08 15:56:24

●NSdns2.swizzonic.ch2026-03-18 → 2026-08-08 · 3 obs

○ 2017-11-12 12:57:34
● 2026-03-18 13:24:34
● 2026-08-08 15:56:24

○NSns1.nets.ch2015-05-09 → 2017-11-12 · 4 obs

● 2015-05-09 04:06:58
● 2017-11-12 12:57:34
○ 2026-03-18 13:24:34
○ 2026-08-08 15:56:24

○NSns2.nets.ch2015-05-09 → 2017-11-12 · 4 obs

● 2015-05-09 04:06:58
● 2017-11-12 12:57:34
○ 2026-03-18 13:24:34
○ 2026-08-08 15:56:24

○NSns3.nets.ch2016-12-20 → 2017-11-12 · 5 obs

○ 2015-05-09 04:06:58
● 2016-12-20 21:42:00
● 2017-11-12 12:57:34
○ 2026-03-18 13:24:34
○ 2026-08-08 15:56:24

●MXpolytechna-ch.mail.protection.outlook.com2015-05-09 → 2026-08-08 · 2 obs

● 2015-05-09 04:06:58
● 2026-08-08 15:56:24

●A116.203.248.982026-03-18 → 2026-08-08 · 3 obs

○ 2017-11-12 12:57:34
● 2026-03-18 13:24:34
● 2026-08-08 15:56:24

○A5.148.172.322015-05-09 → 2017-11-12 · 4 obs

● 2015-05-09 04:06:58
● 2017-11-12 12:57:34
○ 2026-03-18 13:24:34
○ 2026-08-08 15:56:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
polytechna.ch	dns1.swizzonic.ch, dns2.swizzonic.ch	-

✅ Authoritative Response

Server:81.88.61.5

NS records: dns1.swizzonic.ch, dns2.swizzonic.ch

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1184ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`116.203.248.98`
NS	2	`dns2.swizzonic.ch, dns1.swizzonic.ch`
MX	1	`polytechna-ch.mail.protection.outlook.co`
TXT	2	`swisssign-check=2m2Wwb8Q_meoE4Tg6rF-kFpN, v=spf1 ip4:46.140.123.206 include:spf.pr`
SOA	1	`dns1.swizzonic.ch hostmaster.swizzonic.c`

Analysis

IP Addresses

polytechna.ch resolves to just one IP address, 116.203.248.98.

Two other host names, along with vossenwheels.ch, ftc.de and fahrzeug-museum.ch, also share IP numbers with polytechna.ch.

Name Servers

The NS records for polytechna.ch delegate to dns1.swizzonic.ch and dns2.swizzonic.ch.

polytechna.ch shares its NS records with other domains, for example crkva.ch, hotspotsa.ch, ferienshop.ch and two others.

dns1.swizzonic.ch resolves to 81.88.61.5 and 2a01:8100:2911::2:184:5. Likewise, dns2.swizzonic.ch resolves to 81.88.58.219 and 2a01:8100:2901::1:183:202 — two IP addresses apiece.

Mail Servers

The sole mail server for polytechna.ch is polytechna-ch.mail.protection.outlook.com.

With 8 IP addresses total, polytechna-ch.mail.protection.outlook.com resolves to 52.101.68.3, 52.101.68.5, 52.101.68.12 and 5 others.