subnetmask.it - robtex.com
subnetmask.it
| DNSSEC | ⚠️ Not signed | ||||||
| A | 31.220.80.18🇩🇪 CONTABO31.220.80.0/21 | ||||||
| PTR | server1.subnetmask.it | ||||||
| NS | ns1.contabo.net ⭐ | ||||||
| A | 2a02:c207:ff00:1200::1🇩🇪 CONTABO2a02:c207::/32 | ||||||
| A | 5.180.150.13🇺🇸 CONTABO5.180.150.0/24 | ||||||
| PTR | ns1.contabo.net | ||||||
| NS | ns2.contabo.net | ||||||
| A | 2a02:c202:5028:1200::1🇩🇪 CONTABO2a02:c202::/32 | ||||||
| A | 195.179.224.10🇩🇪 CONTABO195.179.224.0/21 | ||||||
| PTR | ns2.contabo.net | ||||||
| NS | ns3.contabo.net | ||||||
| A | 2605:a140:5028:1200::1🇺🇸 CONTABO-USA2605:a140::/32 710 N Tucker Blvd. STE 400A St. Louis MO 63101 United States | ||||||
| A | 209.126.15.15🇺🇸 CONTABO-USA209.126.0.0/20 710 N Tucker Blvd. STE 400A St. Louis MO 63101 United States | ||||||
| PTR | ns3.contabo.net | ||||||
| MX | mail.subnetmask.it ⭐ | ||||||
| A | 31.220.80.18🇩🇪 CONTABO31.220.80.0/21 | ||||||
| PTR | server1.subnetmask.it | ||||||
| TXT | v=spf1 +a +mx +a:vmi34837.contaboserver.net -all | ||||||
| TXT | google-site-verification=L0SEzTZNdwVouTpHv7DE7s3jdp1tFFsX9IlHdqDaN44 | ||||||
| TXT | o=- | ||||||
| TXT | v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8NiuUuwF1nuSdr57jkriyE... | ||||||
| TXT | yahoo-verification-key=DgeYlM4/qaPBHSZVoBjJ7tgp6hg7voP3VwdYoEOnsUs= | ||||||
| TXT | _dmarc.gmail.com. 359 IN TXT v=DMARC1; p=none; sp=quarantine; rua=mailto:mail... | ||||||
| SOA | ns1.contabo.nethostmaster@contabo.de serial=1774239411 | ||||||
it
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.it ⭐ | ||||||
| NS | a.dns.it | ||||||
| NS | m.dns.it | ||||||
| NS | nameserver.cnr.it | ||||||
| NS | r.dns.it | ||||||
| NS | v.dns.it | ||||||
| SOA | dns.nic.ithostmaster@nic.it 2026-03-15 #7 | ||||||
Subdomains
Same first word
subnetmask.it |
subnetmask.net |
subnetmask.de |
DNS History
10 records (5 active, 5 former)
○NSdns.technorail.com2015-07-26 → 2016-12-30 · 3 obs
● 2016-12-30 23:39:58
○ 2026-03-23 04:16:50
○NSdns2.technorail.com2015-07-26 → 2016-12-30 · 3 obs
● 2016-12-30 23:39:58
○ 2026-03-23 04:16:50
○NSdns3.arubadns.net2015-07-26 → 2016-12-30 · 3 obs
● 2016-12-30 23:39:58
○ 2026-03-23 04:16:50
○NSdns4.arubadns.cz2015-07-26 → 2016-12-30 · 3 obs
● 2016-12-30 23:39:58
○ 2026-03-23 04:16:50
●NSns1.contabo.net2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 04:16:50
●NSns2.contabo.net2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 04:16:50
●NSns3.contabo.net2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 04:16:50
●MXmail.subnetmask.it2015-07-26 → 2026-03-23 · 2 obs
● 2026-03-23 04:16:50
●A31.220.80.182026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 04:16:50
○A5.189.133.432015-07-26 → 2016-12-30 · 3 obs
● 2016-12-30 23:39:58
○ 2026-03-23 04:16:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| it | a.dns.it, m.dns.it, dns.nic.it, v.dns.it... | - |
| subnetmask.it | ns1.contabo.net, ns2.contabo.net, ns3.contabo.net | - |
✅ Authoritative Response
Server:5.180.150.13
NS records: ns1.contabo.net, ns2.contabo.net, ns3.contabo.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for subnetmask.it (unsigned zone)
⏱️ Timing
Total: 742ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.220.80.18 |
| NS | 3 | ns3.contabo.net, ns2.contabo.net... |
| MX | 1 | mail.subnetmask.it (pri: 10) |
| TXT | 6 | o=-, _dmarc.gmail.com. 359 IN TXT v=DMARC1; p... |
| SOA | 1 | ns1.contabo.net hostmaster.contabo.de |
Analysis
Hierarchy
subnetmask.it is parent of mail.subnetmask.it, stat.subnetmask.it and server1.subnetmask.it.
IP Addresses
subnetmask.it points to a single IP: 31.220.80.18.
Other host names, for instance biagiosollazzi.com, mail.subnetmask.it, stat.subnetmask.it, 24outlet24.com and mail.24outlet24.com share IP numbers with subnetmask.it.
Name Servers
subnetmask.it is delegated to three name servers: ns1.contabo.net, ns2.contabo.net and ns3.contabo.net.
subnetmask.it at least partially shares its name servers with other domains, for instance seoda.de, 53.145.209.in-addr.arpa, earthship-germany.de, braad-perret-gentil.dk and leadingrestaurants.co.uk.
Host names with two IP numbers:
ns1.contabo.net points to: 2a02:c207:ff00:1200::1 and 5.180.150.13.
ns2.contabo.net points to: 2a02:c202:5028:1200::1 and 195.179.224.10.
ns3.contabo.net points to: 2605:a140:5028:1200::1 and 209.126.15.15.
Mail Servers
subnetmask.it is served by a single mail server, mail.subnetmask.it.
mail.subnetmask.it points to IP number 31.220.80.18.