sidef.it - dns.ninja
sidef.it
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 2026-06-27 #13 | ||||||
Subdomains
mx.sidef.it |
Same first word
Similar names
DNS History
15 records (7 active, 8 former)
●NSdns.technorail.com2026-06-12 → 2026-06-27 · 3 obs
● 2026-06-12 08:18:40
● 2026-06-27 11:37:16
●NSdns2.technorail.com2026-06-12 → 2026-06-27 · 3 obs
● 2026-06-12 08:18:40
● 2026-06-27 11:37:16
●NSdns3.arubadns.net2026-06-12 → 2026-06-27 · 3 obs
● 2026-06-12 08:18:40
● 2026-06-27 11:37:16
●NSdns4.arubadns.cz2026-06-12 → 2026-06-27 · 3 obs
● 2026-06-12 08:18:40
● 2026-06-27 11:37:16
○NSns1.sidef.it2015-07-16 → 2017-06-05 · 4 obs
● 2017-06-05 14:58:22
○ 2026-06-12 08:18:40
○ 2026-06-27 11:37:16
○NSns2.sidef.it2015-07-16 → 2017-06-05 · 4 obs
● 2017-06-05 14:58:22
○ 2026-06-12 08:18:40
○ 2026-06-27 11:37:16
○NSns3.sidef.it2015-07-16 → 2017-06-05 · 4 obs
● 2017-06-05 14:58:22
○ 2026-06-12 08:18:40
○ 2026-06-27 11:37:16
○MXavas.ergonet.it2015-07-16 → 2016-04-14 · 4 obs
● 2016-04-14 21:12:44
○ 2016-11-25 09:59:12
○ 2026-06-27 11:37:16
○MXmailserver04.ergonet.it2015-07-16 → 2015-11-14 · 4 obs
● 2015-11-14 00:49:26
○ 2016-01-22 17:44:30
○ 2026-06-27 11:37:16
○MXmx.ergonet.it2016-01-22 → 2016-04-14 · 5 obs
● 2016-01-22 17:44:30
● 2016-04-14 21:12:44
○ 2016-11-25 09:59:12
○ 2026-06-27 11:37:16
●MXmx.sidef.it2026-06-12 → 2026-06-27 · 3 obs
● 2026-06-12 08:18:40
● 2026-06-27 11:37:16
○A149.3.144.372015-07-16 → 2016-04-14 · 4 obs
● 2016-04-14 21:12:44
○ 2016-11-25 09:59:12
○ 2026-06-27 11:37:16
○A149.3.145.182016-11-25 → 2017-06-05 · 5 obs
● 2016-11-25 09:59:12
● 2017-06-05 14:58:22
○ 2026-06-12 08:18:40
○ 2026-06-27 11:37:16
●A2a00:6d40:4:1::c320:62026-06-12 → 2026-06-27 · 3 obs
● 2026-06-12 08:18:40
● 2026-06-27 11:37:16
●A31.11.36.62026-06-12 → 2026-06-27 · 3 obs
● 2026-06-12 08:18:40
● 2026-06-27 11:37:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| it | m.dns.it, nameserver.cnr.it, a.dns.it, dns.nic.it... | - |
| sidef.it | dns3.arubadns.net, dns2.technorail.com, dns.technorail.com, dns4.arubadns.cz | - |
✅ Authoritative Response
Server:95.110.220.5
NS records: dns3.arubadns.net, dns2.technorail.com, dns.technorail.com, dns4.arubadns.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sidef.it (unsigned zone)
⏱️ Timing
Total: 3665ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.11.36.6 |
| AAAA | 1 | 2a00:6d40:4:1::c320:6 |
| NS | 4 | dns4.arubadns.cz, dns2.technorail.com... |
| MX | 1 | mx.sidef.it (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.aruba.it ~all |
| SOA | 1 | dns2.technorail.com hostmaster.sidef.it |
Analysis
Hierarchy
mx.sidef.it is a subdomain of sidef.it.
IP Addresses
sidef.it points to the IP addresses 31.11.36.6 and 2a00:6d40:4:1::c320:6
Additional host names — lamattamadeinsicily.com, qualitypack.it, fisiodomusroma.it and two others — share IP numbers with sidef.it.
Name Servers
sidef.it has four authoritative name servers: dns2.technorail.com, dns.technorail.com, dns4.arubadns.cz and dns3.arubadns.net.
The name servers of sidef.it overlap at least partially with those of other domains — among them camtex.it, sangio.it, matteomilani.it and two more.
Each of the four hosts dns2.technorail.com, dns.technorail.com, dns4.arubadns.cz and dns3.arubadns.net has two IP addresses. dns2.technorail.com points to 95.110.136.8 and 2a00:6d42:3:2096::f:1. dns.technorail.com points to 94.177.210.13 and 2a00:6d40:2:2082::f:1. dns4.arubadns.cz points to 81.2.216.238 and 2001:15e8:104:4::d8ee. dns3.arubadns.net points to 95.110.220.5 and 2a00:6d41:3:206e::f:1.
Mail Servers
sidef.it has one mail server: mx.sidef.it.
mx.sidef.it points to 7 IP numbers: 62.149.128.74, 62.149.128.151, 62.149.128.154 and 4 other.