dubiousknowledge.com - dns.ninja
dubiousknowledge.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786675269 | ||||||
Same first word
dubiousknowledge.com |
DNS History
7 records (6 active, 1 former)
●NSns77.domaincontrol.com2015-08-08 → 2026-08-14 · 2 obs
● 2026-08-14 02:43:20
●NSns78.domaincontrol.com2015-08-08 → 2026-08-14 · 2 obs
● 2026-08-14 02:43:20
●MXmailstore1.secureserver.net2015-08-08 → 2026-08-14 · 2 obs
● 2026-08-14 02:43:20
●MXsmtp.secureserver.net2015-08-08 → 2026-08-14 · 2 obs
● 2026-08-14 02:43:20
●A15.197.148.332026-03-24 → 2026-08-14 · 3 obs
● 2026-03-24 07:54:40
● 2026-08-14 02:43:20
●A3.33.130.1902026-03-24 → 2026-08-14 · 3 obs
● 2026-03-24 07:54:40
● 2026-08-14 02:43:20
○A50.63.202.622015-08-08 → 2017-05-13 · 4 obs
● 2017-05-13 19:30:16
○ 2026-03-24 07:54:40
○ 2026-08-14 02:43:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, b.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net... | - |
| dubiousknowledge.com | ns77.domaincontrol.com, ns78.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.76.49
NS records: ns77.domaincontrol.com, ns78.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dubiousknowledge.com (unsigned zone)
⏱️ Timing
Total: 191ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.33.130.190, 15.197.148.33 |
| NS | 2 | ns77.domaincontrol.com, ns78.domaincontrol.com |
| MX | 2 | mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0) |
| SOA | 1 | ns77.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns77.domaincontrol.com, ns77.domaincontrol.com, ns78.domaincontrol.com...)
Analysis
IP Addresses
dubiousknowledge.com resolves to the IP addresses 3.33.130.190 and 15.197.148.33
Among the host names that share IP numbers with dubiousknowledge.com are workshopcoacademy.com, zactyturner.net, hvacgarage.com and two others.
Name Servers
dubiousknowledge.com has two authoritative name servers — ns77.domaincontrol.com and ns78.domaincontrol.com.
dubiousknowledge.com has the same name server delegation as a number of other domains, such as adriangagnon.com, tcipartnersllc.com, sirenashop.com and two more.
Both ns77.domaincontrol.com and ns78.domaincontrol.com have two IP addresses each. ns77.domaincontrol.com resolves to 97.74.108.49 and 2603:5:21c4::31; ns78.domaincontrol.com resolves to 173.201.76.49 and 2603:5:22c4::31.
Mail Servers
The MX records for dubiousknowledge.com point to two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.
dubiousknowledge.com has the same mail server arrangement as a number of other domains, for example golfinbalance.com, pisoenlaplaya.com, ostcium.com and two more.
The mail servers of dubiousknowledge.com overlap at least partially with those of other domains, including upstep.com, simpsoncadillac.com and eclipse.network.
mailstore1.secureserver.net and smtp.secureserver.net each resolve to three IP addresses. mailstore1.secureserver.net resolves to 216.69.141.78, 216.69.141.114 and 216.69.141.162. smtp.secureserver.net resolves to 216.69.141.71, 216.69.141.84 and 216.69.141.113.