masterclass.pt - dns.ninja
masterclass.pt
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.31.158.130🇵🇹 WEBHS185.31.158.0/24 | ||||||
| PTR | ns1.pointerns.com | ||||||
| NS | ns1.pointerns.com ⭐ | ||||||
| A | 185.31.158.130🇵🇹 WEBHS185.31.158.0/24 | ||||||
| PTR | ns1.pointerns.com | ||||||
| NS | ns2.pointerns.com | ||||||
| A | 185.90.58.167🇵🇹 WEBHS185.90.58.0/24 | ||||||
| PTR | ns2.pointerns.com | ||||||
| MX | mail.masterclass.pt ⭐ | ||||||
| A | 185.31.158.130🇵🇹 WEBHS185.31.158.0/24 | ||||||
| PTR | ns1.pointerns.com | ||||||
| SOA | ns1.pointerns.comhostmaster@masterclass.pt 2022-12-22 #15 | ||||||
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 2026-07-23 #44 | ||||||
Previously MX for
Subdomains
mail.masterclass.pt |
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
○NSns1.bluehost.com2015-08-22 → 2017-04-09 · 4 obs
● 2017-04-09 05:12:10
○ 2026-02-14 18:53:50
○ 2026-07-23 22:45:50
●NSns1.pointerns.com2026-02-14 → 2026-07-23 · 3 obs
● 2026-02-14 18:53:50
● 2026-07-23 22:45:50
○NSns2.bluehost.com2015-08-22 → 2017-04-09 · 4 obs
● 2017-04-09 05:12:10
○ 2026-02-14 18:53:50
○ 2026-07-23 22:45:50
●NSns2.pointerns.com2026-02-14 → 2026-07-23 · 3 obs
● 2026-02-14 18:53:50
● 2026-07-23 22:45:50
●MXmail.masterclass.pt2015-08-22 → 2026-07-23 · 6 obs
● 2016-03-28 09:53:04
○ 2016-08-11 10:23:24
○ 2017-04-09 05:12:10
● 2026-02-14 18:53:50
● 2026-07-23 22:45:50
○MXmasterclass.pt2016-08-11 → 2017-04-09 · 5 obs
● 2016-08-11 10:23:24
● 2017-04-09 05:12:10
○ 2026-02-14 18:53:50
○ 2026-07-23 22:45:50
●A185.31.158.1302026-02-14 → 2026-07-23 · 3 obs
● 2026-02-14 18:53:50
● 2026-07-23 22:45:50
○A69.195.124.772015-08-22 → 2017-04-09 · 4 obs
● 2017-04-09 05:12:10
○ 2026-02-14 18:53:50
○ 2026-07-23 22:45:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pt | a.dns.pt, b.dns.pt, c.dns.pt, d.dns.pt... | 18 records |
| masterclass.pt | ns2.pointerns.com, ns1.pointerns.com | - |
✅ Authoritative Response
Server:185.90.58.167
NS records: ns2.pointerns.com, ns1.pointerns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for masterclass.pt (unsigned zone)
⏱️ Timing
Total: 842ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.31.158.130 |
| NS | 2 | ns1.pointerns.com, ns2.pointerns.com |
| MX | 1 | mail.masterclass.pt (pri: 10) |
| SOA | 1 | ns1.pointerns.com hostmaster.masterclass |
📌 Glue Records Collected
Total: 18
In-bailiwick: 14 (a.dns.pt, b.dns.pt, c.dns.pt...)
Out-of-bailiwick: 4 (ns.dns.br, ns2.nic.fr, ns.dns.br...)
Analysis
Hierarchy
The domain mail.masterclass.pt falls under the parent masterclass.pt.
IP Addresses
masterclass.pt points to a single IP number: 185.31.158.130.
Additional host names — josedemello.net, musiquim.com, pointerns.com and two others — share IP numbers with masterclass.pt.
Name Servers
masterclass.pt uses two name servers for its delegation: ns1.pointerns.com and ns2.pointerns.com.
masterclass.pt shares its name server setup with other domains, including nicolaurosa.com, roballpaintballs.com, flexdeal.pt and two others.
At least some of masterclass.pt's name servers are shared with other domains, for example govis.pt, carpilux.com, barratalasso.com and two more.
These name servers tend to co-occur with ns1.namebrightdns.com, ns2.namebrightdns.com, dns1.host-redirect.com and 3 other name servers in the same DNS delegations.
Each of ns1.pointerns.com and ns2.pointerns.com has one IP address: ns1.pointerns.com uses 185.31.158.130 and ns2.pointerns.com uses 185.90.58.167.
Mail Servers
masterclass.pt has one mail server: mail.masterclass.pt.
mail.masterclass.pt directs to just one IP number, 185.31.158.130.