ptr.is - dns.ninja
ptr.is
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.ptr.is ⭐ | ||||||
| A | 2001:470:1d:97::1🇨🇦 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns1.ptr.is | ||||||
| A | 158.51.99.163🇺🇸 ASN-CQ-GIGENET158.51.98.0/23 TNAHosting | ||||||
| PTR | ns1.ptr.is | ||||||
| NS | ns2.ptr.is | ||||||
| A | 2001:470:1d:97::b🇨🇦 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns2.ptr.is | ||||||
| A | 64.44.157.211🇺🇸 NEXEON-164.44.144.0/20 DAL-1 | ||||||
| PTR | ns2.ptr.is | ||||||
| NS | ns3.ptr.is | ||||||
| A | 2001:470:1d:97::d🇨🇦 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns3.ptr.is | ||||||
| A | 23.95.91.132🇺🇸 Colocrossing-AS23.95.90.0/23 ColoCrossing | ||||||
| PTR | 23-95-91-132-host.colocrossing.com | ||||||
| MX | mx.headquarter.email ⭐ | ||||||
| A | 2001:470:1f09:ce::1🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | mx.headquarter.email | ||||||
| A | 91.109.118.73🇬🇧 UKSERVERS-AS91.109.112.0/21 UK Dedicated Servers Limited | ||||||
| PTR | mx.headquarter.email | ||||||
| TXT | v=spf1 +mx -all | ||||||
| SOA | ns1.ptr.ispostmaster@ptr.is 2026-05-23 #2 | ||||||
is
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.is ⭐ | ||||||
| NS | c.nic.is | ||||||
| NS | d.nic.is | ||||||
| NS | e.nic.is | ||||||
| NS | f.nic.is | ||||||
| SOA | a.nic.ishostmaster@isnic.is serial=1784387402 | ||||||
Subdomains
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.ptr.is2026-02-14 → 2026-07-18 · 2 obs
● 2026-07-18 15:57:12
●NSns2.ptr.is2026-02-14 → 2026-07-18 · 2 obs
● 2026-07-18 15:57:12
●NSns3.ptr.is2026-02-14 → 2026-07-18 · 2 obs
● 2026-07-18 15:57:12
●MXmx.headquarter.email2026-02-14 → 2026-07-18 · 2 obs
● 2026-07-18 15:57:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| is | a.nic.is, c.nic.is, d.nic.is, e.nic.is... | 10 records |
| ptr.is | ns3.ptr.is, ns1.ptr.is, ns2.ptr.is | 3 records |
✅ Authoritative Response
Server:23.95.91.132
NS records: ns3.ptr.is, ns1.ptr.is, ns2.ptr.is
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ptr.is (unsigned zone)
⏱️ Timing
Total: 1470ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns1.ptr.is, ns2.ptr.is... |
| MX | 1 | mx.headquarter.email (pri: 5) |
| TXT | 1 | v=spf1 +mx -all |
| SOA | 1 | ns1.ptr.is postmaster.ptr.is |
📌 Glue Records Collected
Total: 13
In-bailiwick: 13 (a.nic.is, c.nic.is, d.nic.is...)
Analysis
Hierarchy
The domain ptr.is is parent to ns1.ptr.is, ns3.ptr.is and ns2.ptr.is.
Name Servers
The authoritative name servers for ptr.is are ns1.ptr.is, ns2.ptr.is and ns3.ptr.is — three in total.
At least some of ptr.is's name servers are shared with other domains, for example claudiney.info and headquarter.email.
ns1.ptr.is, ns2.ptr.is and ns3.ptr.is all resolve to exactly two IP numbers apiece: ns1.ptr.is → 158.51.99.163 and 2001:470:1d:97::1; ns2.ptr.is → 64.44.157.211 and 2001:470:1d:97::b; ns3.ptr.is → 23.95.91.132 and 2001:470:1d:97::d.
Mail Servers
ptr.is routes its mail through a single mail server, mx.headquarter.email.
ptr.is has the same MX record configuration as other domains, including claudiney.info, headquarter.email and ptr.net.br.
mx.headquarter.email directs to two IP numbers, 91.109.118.73 and 2001:470:1f09:ce::1.