extendmax.vn - robtex.com
extendmax.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.170.123.140🇻🇳 NHAN-HOA-AS-VN103.170.123.0/24 NHANHOAGROUP-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 | ||||||
| MX | mail.extendmax.vn ⭐ | ||||||
| A | 45.117.83.86🇻🇳 NHAN-HOA-AS-VN45.117.80.0/22 NHANHOA-VN | ||||||
| PTR | mail.extendmax.vn | ||||||
| TXT | v=spf1 mx ip4:45.117.83.86 include:spf.nhanhoa.com -all | ||||||
| SOA | ns1.zonedns.vnroot@extendmax.vn 2025-10-28 #2 | ||||||
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2031056627 | ||||||
Subdomains
mail.extendmax.vn |
Same first word
extendmax.com |
extendmax.vn |
Similar names
DNS History
7 records (6 active, 1 former)
●NSns1.zonedns.vn2018-07-23 → 2026-07-30 · 2 obs
● 2026-07-30 21:43:26
●NSns2.zonedns.vn2018-07-23 → 2026-07-30 · 2 obs
● 2026-07-30 21:43:26
●NSns3.zonedns.vn2018-07-23 → 2026-07-30 · 2 obs
● 2026-07-30 21:43:26
●NSns4.zonedns.vn2026-05-01 → 2026-07-30 · 3 obs
● 2026-05-01 06:52:02
● 2026-07-30 21:43:26
●MXmail.extendmax.vn2018-07-23 → 2026-07-30 · 2 obs
● 2026-07-30 21:43:26
●A103.170.123.1402026-05-01 → 2026-07-30 · 3 obs
● 2026-05-01 06:52:02
● 2026-07-30 21:43:26
○A103.28.36.1882018-07-23 → 2018-07-23 · 3 obs
○ 2026-05-01 06:52:02
○ 2026-07-30 21:43:26
🔍 DNS Trace
Analysis
Hierarchy
extendmax.vn serves as the parent of mail.extendmax.vn.
IP Addresses
extendmax.vn has exactly one IP address — 103.170.123.140.
duhocduc.vn, www.duhocduc.vn, hcit.edu.vn plus two other host names have IP numbers in common with extendmax.vn.
Name Servers
Four name servers handle the delegation for extendmax.vn: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.
extendmax.vn has at least partial name server overlap with other domains, such as bvntd.gov.vn, hisbvqy7.vn, tamloi.com.vn and two others.
It is common to see these name servers used together with 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 and ns2.zonedns.vn are host names that each point to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 IP addresses.
ns3.zonedns.vn and ns4.zonedns.vn are host names that each point to 2001:df1:3200::15 IP addresses.
Mail Servers
extendmax.vn uses one mail server — mail.extendmax.vn.
mail.extendmax.vn resolves to a single IP number: 45.117.83.86.