headosc.com - dns.ninja
headosc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.200.23.236🇻🇳 VNPT-AS-VN103.200.23.0/24 VNPT-NET | ||||||
| PTR | host236.vietnix.vn | ||||||
| NS | ns1.zonedns.vn ⭐ | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 64.176.84.220🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix | ||||||
| PTR | ns1.zonedns.vn | ||||||
| NS | ns2.zonedns.vn | ||||||
| A | 2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix | ||||||
| A | 103.176.178.51🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN | ||||||
| NS | ns3.zonedns.vn | ||||||
| A | 2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN | ||||||
| A | 103.28.36.30🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| NS | ns4.zonedns.vn | ||||||
| A | 2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN | ||||||
| A | 103.28.39.159🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN | ||||||
| TXT | google-site-verification=pwnX1hYLKU3SmUuAQlwM4OHrvLRYgdn_ZBJXGDH7oEc | ||||||
| SOA | ns1.zonedns.vnroot@headosc.com 2026-05-28 #4 | ||||||
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=1782266720 | ||||||
Same first word
headosc.com |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.zonedns.vn2026-03-04 → 2026-06-24 · 2 obs
● 2026-06-24 02:15:02
●NSns2.zonedns.vn2026-03-04 → 2026-06-24 · 2 obs
● 2026-06-24 02:15:02
●NSns3.zonedns.vn2026-03-04 → 2026-06-24 · 2 obs
● 2026-06-24 02:15:02
●NSns4.zonedns.vn2026-03-04 → 2026-06-24 · 2 obs
● 2026-06-24 02:15:02
●A103.200.23.2362026-03-04 → 2026-06-24 · 2 obs
● 2026-06-24 02:15:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| headosc.com | ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn | - |
✅ Authoritative Response
Server:103.28.39.159
NS records: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for headosc.com (unsigned zone)
⏱️ Timing
Total: 4607ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.200.23.236 |
| NS | 4 | ns4.zonedns.vn, ns2.zonedns.vn... |
| TXT | 1 | google-site-verification=pwnX1hYLKU3SmUu |
| SOA | 1 | ns1.zonedns.vn root.headosc.com |
Analysis
IP Addresses
headosc.com has exactly one IP address — 103.200.23.236.
kientrucuyvu.com.vn, tonybed.vn, toplisthanoi.com plus two other host names have IP numbers in common with headosc.com.
Name Servers
Four name servers handle the delegation for headosc.com: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.
There is at least partial name server overlap between headosc.com and other domains — ieltscare.edu.vn, gt7.vn, scitech.com.vn and two more among them.
These name servers frequently co-occur with the name servers ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.
Four hosts, each with two IP addresses — ns1.zonedns.vn → 64.176.84.220 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns2.zonedns.vn → 103.176.178.51 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns3.zonedns.vn → 103.28.36.30 and 2001:df1:3200::15; ns4.zonedns.vn → 103.28.39.159 and 2001:df1:3200::15.
ns1.zonedns.vn along with ns2.zonedns.vn each resolve to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 IP addresses.
ns3.zonedns.vn along with ns4.zonedns.vn each resolve to 2001:df1:3200::15 IP addresses.