`top-telcom-service.ch`

DNSSEC	⚠️ Not signed
NS	`ns1.cyon.ch` ⭐
		A	2a01:ab20:0:185::2^{🇨🇭 CYON2a01:ab20::/32}
		A	185.174.216.2^{🇨🇭 CYON185.174.216.0/22}
			PTR	`ns1.cyon.ch`
NS	`ns2.cyon.ch`
		A	2001:67c:234::2^{🇨🇭 CYON2001:67c:234::/48 cyon GmbH}
		A	91.206.24.2^{🇨🇭 CYON91.206.24.0/23 Cyon GmbH}
			PTR	`ns2.cyon.ch`
MX	`toptelcomservice-ch0i1e.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca3c::^{🇨🇭 Microsoft2a01:111:f000::/36}
			PTR	`mail-zrap278cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca3c::1^{🇨🇭 Microsoft2a01:111:f000::/36}
			PTR	`mail-zrzp278cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:ca3c::2^{🇨🇭 Microsoft2a01:111:f000::/36}
			PTR	`mail-zr1p278cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:ca3e::1^{🇨🇭 Microsoft2a01:111:f000::/36}
			PTR	`mail-gvap278cu00301.inbound.protection.outlook.com`
		A	52.101.185.12^{🇨🇭 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-zrap278cu00304.inbound.protection.outlook.com`
		A	52.101.185.13^{🇨🇭 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-zrzp278cu00205.inbound.protection.outlook.com`
		A	52.101.185.14^{🇨🇭 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-zr1p278cu00206.inbound.protection.outlook.com`
		A	52.101.187.1^{🇨🇭 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-gvap278cu00301.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.nf-cloud.com include:sp...`
TXT	`MS=ms43246526`
SOA	`ns1.cyon.ch`server@cyon.ch 2024-04-11 #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.ch`dns-operation@switch.ch 2026-08-10 #11

Same first word

top-telcom-service.ch

DNS History

12 records (3 active, 9 former)

○NSch.ch-inter.net2016-02-28 → 2018-11-03 · 5 obs

○ 2015-12-03 22:00:42
● 2016-02-28 00:22:02
● 2018-11-03 06:32:34
○ 2026-07-17 00:30:42
○ 2026-08-10 04:34:38

○NSde.ch-inter.net2016-02-28 → 2018-11-03 · 5 obs

○ 2015-12-03 22:00:42
● 2016-02-28 00:22:02
● 2018-11-03 06:32:34
○ 2026-07-17 00:30:42
○ 2026-08-10 04:34:38

○NSnl.ch-inter.net2016-02-28 → 2018-11-03 · 5 obs

○ 2015-12-03 22:00:42
● 2016-02-28 00:22:02
● 2018-11-03 06:32:34
○ 2026-07-17 00:30:42
○ 2026-08-10 04:34:38

○NSns.ch-meta.net2015-07-23 → 2015-12-03 · 4 obs

● 2015-07-23 02:17:40
● 2015-12-03 22:00:42
○ 2016-02-28 00:22:02
○ 2026-08-10 04:34:38

●NSns1.cyon.ch2026-07-17 → 2026-08-10 · 3 obs

○ 2018-11-03 06:32:34
● 2026-07-17 00:30:42
● 2026-08-10 04:34:38

○NSns2.ch-meta.net2015-07-23 → 2015-12-03 · 4 obs

● 2015-07-23 02:17:40
● 2015-12-03 22:00:42
○ 2016-02-28 00:22:02
○ 2026-08-10 04:34:38

●NSns2.cyon.ch2026-07-17 → 2026-08-10 · 3 obs

○ 2018-11-03 06:32:34
● 2026-07-17 00:30:42
● 2026-08-10 04:34:38

○NSns3.ch-meta.net2015-07-23 → 2015-12-03 · 4 obs

● 2015-07-23 02:17:40
● 2015-12-03 22:00:42
○ 2016-02-28 00:22:02
○ 2026-08-10 04:34:38

○MXmail.top-telcom-service.ch2015-07-23 → 2015-12-03 · 4 obs

● 2015-07-23 02:17:40
● 2015-12-03 22:00:42
○ 2016-02-28 00:22:02
○ 2026-08-10 04:34:38

○MXms98024793.msv1.invalid2016-02-28 → 2018-11-03 · 5 obs

○ 2015-12-03 22:00:42
● 2016-02-28 00:22:02
● 2018-11-03 06:32:34
○ 2026-07-17 00:30:42
○ 2026-08-10 04:34:38

●MXtoptelcomservice-ch0i1e.mail.protection.outlook.com2016-02-28 → 2026-08-10 · 3 obs

○ 2015-12-03 22:00:42
● 2016-02-28 00:22:02
● 2026-08-10 04:34:38

○A80.74.158.1002015-07-23 → 2018-11-03 · 4 obs

● 2015-07-23 02:17:40
● 2018-11-03 06:32:34
○ 2026-07-17 00:30:42
○ 2026-08-10 04:34:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	f.nic.ch, e.nic.ch, d.nic.ch, b.nic.ch...	-
top-telcom-service.ch	ns1.cyon.ch, ns2.cyon.ch	4 records

✅ Authoritative Response

Server:185.174.216.2

NS records: ns1.cyon.ch, ns2.cyon.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for top-telcom-service.ch (unsigned zone)

⏱️ Timing

Total: 671ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.cyon.ch, ns2.cyon.ch`
MX	1	`toptelcomservice-ch0i1e.mail.protection.`
TXT	2	`MS=ms43246526, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.cyon.ch server.cyon.ch`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.cyon.ch, ns1.cyon.ch, ns2.cyon.ch...)

Analysis

Name Servers

top-telcom-service.ch uses two name servers for its delegation: ns1.cyon.ch and ns2.cyon.ch.

top-telcom-service.ch has the same name server delegation as a number of other domains, such as biobasel.com, althauslegal.ch, gueven.ch and two more.

At least some of top-telcom-service.ch's name servers are also used by other domains, among them gips-in.ch.

The two host names ns1.cyon.ch and ns2.cyon.ch each have a pair of IP addresses: ns1.cyon.ch has 185.174.216.2 and 2a01:ab20:0:185::2, and ns2.cyon.ch has 91.206.24.2 and 2001:67c:234::2.

Mail Servers

top-telcom-service.ch routes its mail through a single mail server, toptelcomservice-ch0i1e.mail.protection.outlook.com.

toptelcomservice-ch0i1e.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.185.12, 52.101.185.13 and 52.101.185.14, along with 5 other.

top-telcom-service.ch - robtex.com