cours-linkedin.com - robtex.com
cours-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.chhostmaster@swizzonic.ch 2026-02-27 #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.netnstld@verisign-grs.com serial=1786773684 | ||||||
Same first word
cours-linkedin.ch |
cours-linkedin.com |
DNS History
4 records (4 active, 0 former)
●NSdns1.swizzonic.ch2026-03-18 → 2026-08-15 · 2 obs
● 2026-08-15 06:03:44
●NSdns2.swizzonic.ch2026-03-18 → 2026-08-15 · 2 obs
● 2026-08-15 06:03:44
●MXmx.swizzonic.email2026-03-18 → 2026-08-15 · 2 obs
● 2026-08-15 06:03:44
●A81.88.58.2162026-03-18 → 2026-08-15 · 2 obs
● 2026-08-15 06:03:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cours-linkedin.com | dns1.swizzonic.ch, dns2.swizzonic.ch | - |
✅ Authoritative Response
Server:81.88.58.219
NS records: dns1.swizzonic.ch, dns2.swizzonic.ch
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 719ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.88.58.216 |
| NS | 2 | dns2.swizzonic.ch, dns1.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
IP Addresses
cours-linkedin.com directs to one IP number, which is 81.88.58.216.
Among the host names that share IP numbers with cours-linkedin.com are lini.ch, camilante.com, vegetableoil.ch and two others.
Name Servers
cours-linkedin.com is delegated to two name servers: dns1.swizzonic.ch and dns2.swizzonic.ch.
cours-linkedin.com has the same name server delegation as a number of other domains, such as hockeystock.ch, geschenk.ch, (0x736578)art.ch and two more.
dns1.swizzonic.ch and dns2.swizzonic.ch each resolve to two IP addresses: dns1.swizzonic.ch points to 81.88.61.5 and 2a01:8100:2911::2:184:5, while dns2.swizzonic.ch points to 81.88.58.219 and 2a01:8100:2901::1:183:202.
Mail Servers
cours-linkedin.com routes its mail through a single mail server, mx.swizzonic.email.
cours-linkedin.com has the same mail server arrangement as a number of other domains, for example kirn.ch, grasso.eu, oremus.ch and two more.
mx.swizzonic.email resolves to a single IP number: 81.88.63.83.