oldcastleedu.com - robtex.com
oldcastleedu.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=1774473297 | ||||||
Same first word
oldcastleedu.com |
DNS History
8 records (5 active, 3 former)
●NSha1.markmonitor.zone2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 21:19:30
● 2026-03-25 21:19:32
●NSha2.markmonitor.zone2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 21:19:30
● 2026-03-25 21:19:32
●NSha3.markmonitor.zone2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 21:19:30
● 2026-03-25 21:19:32
●NSha4.markmonitor.zone2026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 21:19:30
● 2026-03-25 21:19:32
○NSns61.domaincontrol.com2017-08-15 → 2017-08-15 · 3 obs
○ 2026-03-25 21:19:30
○ 2026-03-25 21:19:32
○NSns62.domaincontrol.com2017-08-15 → 2017-08-15 · 3 obs
○ 2026-03-25 21:19:30
○ 2026-03-25 21:19:32
●A3.33.139.322026-03-25 → 2026-03-25 · 3 obs
● 2026-03-25 21:19:30
● 2026-03-25 21:19:32
○A50.63.202.572017-08-15 → 2017-08-15 · 3 obs
○ 2026-03-25 21:19:30
○ 2026-03-25 21:19:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, d.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net... | - |
| oldcastleedu.com | ha2.markmonitor.zone, ha1.markmonitor.zone | - |
✅ Authoritative Response
Server:162.219.54.170
NS records: ha2.markmonitor.zone, ha1.markmonitor.zone
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for oldcastleedu.com (unsigned zone)
⏱️ Timing
Total: 926ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.33.139.32 |
| NS | 4 | ha3.markmonitor.zone, ha4.markmonitor.zone... |
| SOA | 1 | ha1.markmonitor.zone hostmaster.markmoni |
Analysis
IP Addresses
oldcastleedu.com resolves to one IP number: 3.33.139.32.
other host names including avgtechnology.net, variscaledcengineering.com, www.huffingtonpost.tv, cashpassport.fr and saleschampionoutlet.com share IP numbers with oldcastleedu.com.
Name Servers
oldcastleedu.com is delegated to four name servers: ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and ha4.markmonitor.zone.
oldcastleedu.com at least partially shares name servers with other domains, for instance ciswv.com, enduranceusinsurance.com, clarivate.gr, wearetimelesswomen.com and glukokine.de.
These name servers are commonly used alongside ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.
Host names with two IP numbers:
ha1.markmonitor.zone points to 2001:67c:1bc::5 and 192.174.68.5; ha2.markmonitor.zone points to 2620:10a:80eb::6b and 162.219.54.170; ha3.markmonitor.zone points to 2001:67c:10b8::5 and 176.97.158.5; ha4.markmonitor.zone points to 2620:10a:80ec::6b and 162.219.55.170.