knowledgeos.com - robtex.com
knowledgeos.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=1794428181 | ||||||
Same first word
Similar names
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DNS History
7 records (6 active, 1 former)
●NSns51.domaincontrol.com2015-05-25 → 2026-11-11 · 2 obs
● 2026-11-11 20:52:38
●NSns52.domaincontrol.com2015-05-25 → 2026-11-11 · 2 obs
● 2026-11-11 20:52:38
●MXmailstore1.secureserver.net2015-05-25 → 2026-11-11 · 2 obs
● 2026-11-11 20:52:38
●MXsmtp.secureserver.net2015-05-25 → 2026-11-11 · 2 obs
● 2026-11-11 20:52:38
●A15.197.148.332026-11-01 → 2026-11-11 · 3 obs
● 2026-11-01 04:15:24
● 2026-11-11 20:52:38
○A184.168.221.602015-05-25 → 2017-04-11 · 4 obs
● 2017-04-11 01:56:38
○ 2026-11-01 04:15:24
○ 2026-11-11 20:52:38
●A3.33.130.1902026-11-01 → 2026-11-11 · 3 obs
● 2026-11-01 04:15:24
● 2026-11-11 20:52:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net... | - |
| knowledgeos.com | ns51.domaincontrol.com, ns52.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.105.26
NS records: ns51.domaincontrol.com, ns52.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledgeos.com (unsigned zone)
⏱️ Timing
Total: 510ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.33.130.190, 15.197.148.33 |
| NS | 2 | ns51.domaincontrol.com, ns52.domaincontrol.com |
| MX | 2 | mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0) |
| SOA | 1 | NS51.DOMAINCONTROL.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns51.domaincontrol.com, ns51.domaincontrol.com, ns52.domaincontrol.com...)
Analysis
IP Addresses
knowledgeos.com directs to two IP numbers, 3.33.130.190 and 15.197.148.33
Two other host names, along with sydneyherriott.com, lordiwasbornagamblingman.com and summit-ns.com, also share IP numbers with knowledgeos.com.
Name Servers
knowledgeos.com has two authoritative name servers — ns51.domaincontrol.com and ns52.domaincontrol.com.
knowledgeos.com shares its NS records with other domains, for example kyqp284.net, escillc.com, andrewbermanlaw.com and two others.
Both ns51.domaincontrol.com and ns52.domaincontrol.com have two IP addresses each. ns51.domaincontrol.com resolves to 97.74.105.26 and 2603:5:2192::1a; ns52.domaincontrol.com resolves to 173.201.73.26 and 2603:5:2292::1a.
Mail Servers
knowledgeos.com is served by two mail servers, mailstore1.secureserver.net and smtp.secureserver.net.
Among the domains sharing a mail server setup with knowledgeos.com are boatlogix.co, seattlebiomarker.net, mudstuffin.co.uk and two others.
mailstore1.secureserver.net and smtp.secureserver.net each have three IP addresses — mailstore1.secureserver.net directs to 216.69.141.78, 216.69.141.114 and 216.69.141.162; smtp.secureserver.net directs to 216.69.141.71, 216.69.141.84 and 216.69.141.113.