dsignum.pt - robtex.com
dsignum.pt
| DNSSEC | ⚠️ Not signed | ||||||
| A | 212.13.41.67🇵🇹 NORTENET212.13.32.0/19 G9Telecom, SA. | ||||||
| PTR | lxweb01.g9telecom.pt | ||||||
| NS | dns2.nortenet.pt ⭐ | ||||||
| A | 212.13.35.173🇵🇹 NORTENET212.13.32.0/19 G9Telecom, SA. | ||||||
| PTR | dns2.nortenet.pt | ||||||
| NS | dns.nortenet.pt | ||||||
| A | 212.13.34.246🇵🇹 NORTENET212.13.32.0/19 G9Telecom, SA. | ||||||
| PTR | dns.nortenet.pt | ||||||
| NS | dns2.interacesso.pt | ||||||
| A | 212.13.35.117🇵🇹 NORTENET212.13.32.0/19 G9Telecom, SA. | ||||||
| PTR | dns2.interacesso.pt | ||||||
| MX | a.mx.interacesso.pt ⭐ | ||||||
| A | 212.13.45.18🇵🇹 NORTENET212.13.32.0/19 G9Telecom, SA. | ||||||
| PTR | a.mx.interacesso.pt | ||||||
| MX | mail.dsignum.pt(10) | ||||||
| A | 212.13.41.67🇵🇹 NORTENET212.13.32.0/19 G9Telecom, SA. | ||||||
| PTR | lxweb01.g9telecom.pt | ||||||
| SOA | dns.nortenet.pthostmaster@nortenet.pt 2022-07-15 #1 | ||||||
pt
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | curiosity.dns.pt ⭐ | ||||||
| NS | a.dns.pt | ||||||
| NS | b.dns.pt | ||||||
| NS | c.dns.pt | ||||||
| NS | d.dns.pt | ||||||
| NS | e.dns.pt | ||||||
| NS | g.dns.pt | ||||||
| NS | h.dns.pt | ||||||
| NS | ns.dns.br ⚠️ Not in parent delegation | ||||||
| NS | ns2.nic.fr ⚠️ Not in parent delegation | ||||||
| SOA | curiosity.dns.ptrequest@dns.pt 2026-07-19 #43 | ||||||
Subdomains
mail.dsignum.pt |
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSdns.nortenet.pt2015-07-31 → 2026-07-19 · 2 obs
● 2026-07-19 21:50:22
●NSdns2.interacesso.pt2015-07-31 → 2026-07-19 · 2 obs
● 2026-07-19 21:50:22
●NSdns2.nortenet.pt2015-07-31 → 2026-07-19 · 2 obs
● 2026-07-19 21:50:22
●MXa.mx.interacesso.pt2015-07-31 → 2026-07-19 · 2 obs
● 2026-07-19 21:50:22
●MXmail.dsignum.pt2015-07-31 → 2026-07-19 · 2 obs
● 2026-07-19 21:50:22
○A212.13.35.1212015-07-31 → 2017-03-20 · 4 obs
● 2017-03-20 15:02:30
○ 2026-06-10 00:58:22
○ 2026-07-19 21:50:22
●A212.13.41.672026-06-10 → 2026-07-19 · 3 obs
● 2026-06-10 00:58:22
● 2026-07-19 21:50:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pt | a.dns.pt, b.dns.pt, c.dns.pt, d.dns.pt... | 18 records |
| dsignum.pt | dns.nortenet.pt, dns2.nortenet.pt, dns2.interacesso.pt | 3 records |
✅ Authoritative Response
Server:212.13.35.173
NS records: dns.nortenet.pt, dns2.nortenet.pt, dns2.interacesso.pt
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dsignum.pt (unsigned zone)
⏱️ Timing
Total: 571ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 212.13.41.67 |
| NS | 3 | dns2.nortenet.pt, dns2.interacesso.pt... |
| MX | 2 | mail.dsignum.pt (pri: 10), a.mx.interacesso.pt (pri: 5) |
| SOA | 1 | dns.nortenet.pt hostmaster.nortenet.pt |
📌 Glue Records Collected
Total: 21
In-bailiwick: 14 (a.dns.pt, a.dns.pt, b.dns.pt...)
Out-of-bailiwick: 7 (ns.dns.br, ns.dns.br, ns2.nic.fr...)
Analysis
Hierarchy
dsignum.pt is a parent domain of mail.dsignum.pt.
IP Addresses
dsignum.pt has exactly one IP address — 212.13.41.67.
utilsoft.pt, csicoimbraclub.com, videoguard.pt plus two other host names have IP numbers in common with dsignum.pt.
Name Servers
The authoritative name servers for dsignum.pt are dns2.interacesso.pt, dns2.nortenet.pt and dns.nortenet.pt — three in total.
dsignum.pt shares at least some of its name servers with other domains, including fixo.nortenet.pt, minotauro.com.pt, utilsoft.pt and two others.
These name servers are frequently seen alongside the name servers dns.interacesso.pt.
The hostnames dns2.interacesso.pt, dns2.nortenet.pt and dns.nortenet.pt each resolve to a single IP: dns2.interacesso.pt → 212.13.35.117, dns2.nortenet.pt → 212.13.35.173, dns.nortenet.pt → 212.13.34.246.
Mail Servers
dsignum.pt uses two mail servers, mail.dsignum.pt and a.mx.interacesso.pt.
At least some of the mail servers used by dsignum.pt are shared with other domains: lxweb2.interacesso.pt, hi-porto.com, cav-ef.net and two others among them.
These mail servers are often deployed together with mx.lxweb2.interacesso.pt, mail.hi-porto.com, mail.cav-ef.net and 3 other mail servers.
mail.dsignum.pt and a.mx.interacesso.pt each resolve to one IP number: mail.dsignum.pt points to 212.13.41.67 and a.mx.interacesso.pt points to 212.13.45.18.