`formation-linkedin.ch`

DNSSEC	🔒 Signed (DS record present)
A	81.88.58.216^{🇮🇹 REGISTER-AS81.88.58.0/24 Register.IT S.p.A. prefix}
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	`mx.swizzonic.email` ⭐
		A	81.88.63.83^{🇮🇹 REGISTER-AS81.88.63.0/24 Register.IT S.p.A. prefix}
			PTR	`mx.swizzonic.email`
TXT	`v=spf1 a mx include:spf.webapps.net ~all`
SOA	`dns1.swizzonic.ch`hostmaster@swizzonic.ch 2026-03-07 #1

`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 2026-08-05 #15

Subdomains

www.formation-linkedin.ch

Same first word

formation-linkedin.com

formation-linkedin.ch

Similar names

linkedin-formation.com

DNS History

4 records (4 active, 0 former)

●NSdns1.swizzonic.ch2026-03-31 → 2026-08-05 · 2 obs

● 2026-03-31 19:02:44
● 2026-08-05 06:25:14

●NSdns2.swizzonic.ch2026-03-31 → 2026-08-05 · 2 obs

● 2026-03-31 19:02:44
● 2026-08-05 06:25:14

●MXmx.swizzonic.email2026-03-31 → 2026-08-05 · 2 obs

● 2026-03-31 19:02:44
● 2026-08-05 06:25:14

●A81.88.58.2162026-03-31 → 2026-08-05 · 2 obs

● 2026-03-31 19:02:44
● 2026-08-05 06:25:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
formation-linkedin.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: 852ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.88.58.216`
NS	2	`dns1.swizzonic.ch, dns2.swizzonic.ch`
MX	1	`mx.swizzonic.email (pri: 10)`
TXT	1	`v=spf1 a mx include:spf.webapps.net ~all`
SOA	1	`dns1.swizzonic.ch hostmaster.swizzonic.c`

Analysis

Hierarchy

formation-linkedin.ch is a parent domain of www.formation-linkedin.ch.

IP Addresses

formation-linkedin.ch resolves to just one IP address, 81.88.58.216.

Two other host names, along with slgb.ch, buecheli-baubedarf.ch and airfox.ch, also share IP numbers with formation-linkedin.ch.

Name Servers

formation-linkedin.ch is served by two delegated name servers, dns1.swizzonic.ch and dns2.swizzonic.ch.

formation-linkedin.ch shares its NS records with other domains, for example pwr.services, epprecht.ch, hako.ch and two others.

Each of the two host names carries two IP addresses: dns1.swizzonic.ch points to 81.88.61.5 and 2a01:8100:2911::2:184:5, and dns2.swizzonic.ch points to 81.88.58.219 and 2a01:8100:2901::1:183:202.

Mail Servers

The sole mail server for formation-linkedin.ch is mx.swizzonic.email.

Among the domains sharing a mail server setup with formation-linkedin.ch are skin-estetic.com, amanuensis.ch, terax.ch and two others.

There is one IP number for mx.swizzonic.email: 81.88.63.83.

formation-linkedin.ch - robtex.com