`formation-linkedin.com`

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

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774735447

⚠️ On DNS blocklist: tif

Subdomains

www.formation-linkedin.com

Same first word

formation-linkedin.com

DNS History

8 records (4 active, 4 former)

●NSdns1.swizzonic.ch2026-03-19 → 2026-03-28 · 3 obs

○ 2016-06-20 07:01:12
● 2026-03-19 06:24:46
● 2026-03-28 22:06:08

●NSdns2.swizzonic.ch2026-03-19 → 2026-03-28 · 3 obs

○ 2016-06-20 07:01:12
● 2026-03-19 06:24:46
● 2026-03-28 22:06:08

○NSjo.ns.cloudflare.com2015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 00:13:16
● 2016-03-01 01:12:34
○ 2016-06-20 07:01:12
○ 2026-03-28 22:06:08

○NSvick.ns.cloudflare.com2015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 00:13:16
● 2016-03-01 01:12:34
○ 2016-06-20 07:01:12
○ 2026-03-28 22:06:08

○MXmx.formation-linkedin.com.cust.b.hostedemail.com2015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 00:13:16
● 2016-03-01 01:12:34
○ 2016-06-20 07:01:12
○ 2026-03-28 22:06:08

●MXmx.swizzonic.email2026-03-19 → 2026-03-28 · 3 obs

○ 2016-06-20 07:01:12
● 2026-03-19 06:24:46
● 2026-03-28 22:06:08

○A54.183.102.222015-08-18 → 2016-03-01 · 4 obs

● 2015-08-18 00:13:16
● 2016-03-01 01:12:34
○ 2016-06-20 07:01:12
○ 2026-03-28 22:06:08

●A81.88.58.2162026-03-19 → 2026-03-28 · 3 obs

○ 2016-06-20 07:01:12
● 2026-03-19 06:24:46
● 2026-03-28 22:06:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net...	-
formation-linkedin.com	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: 635ms | 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.com is the parent of www.formation-linkedin.com.

IP Addresses

formation-linkedin.com points to a single IP number: 81.88.58.216.

other host names for instance mikaelgil.ch, utile.ch, five-o-clock.ch, anzer.ch and ion.ch share IP numbers with formation-linkedin.com.

Name Servers

formation-linkedin.com is delegated to two name servers: dns1.swizzonic.ch and dns2.swizzonic.ch.

formation-linkedin.com shares the same name server setup as other domains, for example hdteam.ch, management-conceptions.ch, ugerstner.ch, goru.ch and romanel-sur-lausanne.ch.

Host names with two IP numbers:

dns1.swizzonic.ch points to 2a01:8100:2911::2:184:5 and 81.88.61.5

dns2.swizzonic.ch points to 2a01:8100:2901::1:183:202 and 81.88.58.219

Mail Servers

formation-linkedin.com is handled by a single mail server, mx.swizzonic.email.

formation-linkedin.com shares the same mail server setup as other domains, for instance pl(0x616e616c)l.ch, fahrlehrer.li, swisscollections.ch, calaidon.com and lucernaiuris.ch.

Host name mx.swizzonic.email points to IP address 81.88.63.83.

formation-linkedin.com - robtex.com