usm.com.vn - robtex.com

usm.com.vn

DNSSEC⚠️ Not signed
A103.77.162.33🇻🇳 SUPERDATA103.77.162.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
PTRvienna.maychu.cloud
NSns2.pavietnam.vn ⭐
A2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRns2.dotvndns.vn
A222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT
PTRstatic.vdc.vn
PTRstatic.vnpt.vn
NSns1.pavietnam.vn
A2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRns1.dotvndns.vn
A112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
PTRns1.dotvndns.vn
NSnsbak.pavietnam.net
A2406:9c80::9000:302🇻🇳 SUPERDATA2406:9c80::/48 -VN
PTRnsbak.dotvndns.com
A112.213.89.22🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
PTRns8922.dotvndns.vn
MXmail163188.maychuemail.com ⭐
A103.77.163.188🇻🇳 SUPERDATA103.77.163.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
PTRmail163188.maychuemail.com
MXmail10322.maychuemail.com(5)
A222.255.103.22🇻🇳 VDC222.255.103.0/24 VNPT
PTRmail10322.maychuemail.com
PTR057840.static.maychudns.com
MXmx9322.maychuemail.net(10)
A112.213.93.22🇻🇳 SUPERDATA112.213.93.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi
PTRmx9322.maychuemail.net
TXTv=spf1 a mx include:spf.maychuemail.com -all
TXTMS=ms58696577
SOAns2.pavietnam.vnhostmaster@usm.com.vn 2026-04-13 #41

com.vn

DNSSEC⚠️ Not signed
NSdns-master.vnnic.vn ⭐
NSa.dns-servers.vn ⚠️ Not in parent delegation
NSb.dns-servers.vn ⚠️ Not in parent delegation
NSc.dns-servers.vn ⚠️ Not in parent delegation
NSd.dns-servers.vn ⚠️ Not in parent delegation
NSe.dns-servers.vn ⚠️ Not in parent delegation
NSf.dns-servers.vn ⚠️ Not in parent delegation
NSg.dns-servers.vn ⚠️ Not in parent delegation
NSh.dns-servers.vn ⚠️ Not in parent delegation
SOAdns-master.vnnic.vnpostmaster@vnnic.vn serial=2022708778

Subdomains

mail.usm.com.vn
www.usm.com.vn

Same first word

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usm.it
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sum.club
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smu.jobs
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mus.com.pk
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sum.se
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mus.pa.us
sum.be
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mus.es
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DNS History

8 records (7 active, 1 former)

20192020202120222023202420252026NSns1.pavietnam.vnns2.pavietnam.vnnsbak.pavietnam.netMXmail10322.maychuemail.commail163188.maychuemail.commx9322.maychuemail.netA103.77.162.33112.78.2.17
●NSns1.pavietnam.vn2018-07-25 → 2026-05-11 · 2 obs
● 2018-07-25 17:43:54
● 2026-05-11 02:26:36
●NSns2.pavietnam.vn2018-07-25 → 2026-05-11 · 2 obs
● 2018-07-25 17:43:54
● 2026-05-11 02:26:36
●NSnsbak.pavietnam.net2018-07-25 → 2026-05-11 · 2 obs
● 2018-07-25 17:43:54
● 2026-05-11 02:26:36
●MXmail10322.maychuemail.com2018-07-25 → 2026-05-11 · 2 obs
● 2018-07-25 17:43:54
● 2026-05-11 02:26:36
●MXmail163188.maychuemail.com2026-05-01 → 2026-05-11 · 3 obs
○ 2018-07-25 17:43:54
● 2026-05-01 08:32:14
● 2026-05-11 02:26:36
●MXmx9322.maychuemail.net2018-07-25 → 2026-05-11 · 2 obs
● 2018-07-25 17:43:54
● 2026-05-11 02:26:36
●A103.77.162.332026-05-01 → 2026-05-11 · 3 obs
○ 2018-07-25 17:43:54
● 2026-05-01 08:32:14
● 2026-05-11 02:26:36
○A112.78.2.172018-07-25 → 2018-07-25 · 3 obs
● 2018-07-25 17:43:54
○ 2026-05-01 08:32:14
○ 2026-05-11 02:26:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vnc.dns-servers.vn, g.dns-servers.vn, e.dns-servers.vn, f.dns-servers.vn...-
usm.com.vnns2.pavietnam.vn, ns1.pavietnam.vn, nsbak.pavietnam.net-

✅ Authoritative Response

Server:112.213.89.22

NS records: ns2.pavietnam.vn, ns1.pavietnam.vn, nsbak.pavietnam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usm.com.vn (unsigned zone)

⏱️ Timing

Total: 2263ms | Queries: -

📄 Records

TypeCountSample Data
A1103.77.162.33
NS3ns1.pavietnam.vn, ns2.pavietnam.vn...
MX3mail10322.maychuemail.com (pri: 5), mx9322.maychuemail.net (pri: 10)...
TXT2v=spf1 a mx include:spf.maychuemail.com , MS=ms58696577
SOA1ns2.pavietnam.vn hostmaster.usm.com.vn

Analysis

Hierarchy

usm.com.vn is a parent of mail.usm.com.vn and www.usm.com.vn.

IP Addresses

usm.com.vn points to a single IP number: 103.77.162.33.

Other host names, for instance dangky.cflitufm.edu.vn, bvndgiadinh.org.vn, khothanhly.net, cpcontacts.vicemtamdiep.com.vn and sukien.bvndgiadinh.org.vn share IP numbers with usm.com.vn.

Name Servers

The delegation for usm.com.vn is handled by three name servers: nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

usm.com.vn at least partially shares name servers with other domains, for instance enviet-group.com, xemaydienxanh.vn, digilife.com.vn, inoxtoanthang.com and dotho.com.vn.

these name servers are commonly used with ns1.dotvndns.vn, ns2.dotvndns.vn and nsbak.dotvndns.com.

Two IP numbers per host:

nsbak.pavietnam.net points to 2406:9c80::9000:302 and 112.213.89.22.

ns1.pavietnam.vn points to 2406:9c80::66 and 112.213.89.3.

ns2.pavietnam.vn points to 2406:9c80::9000:111 and 222.255.121.247.

Mail Servers

usm.com.vn is handled by three mail servers: mail10322.maychuemail.com, mail163188.maychuemail.com and mx9322.maychuemail.net.

usm.com.vn shares mail servers with other domains at least in part, for instance bandoglobal.vn, holafoods.com.vn, cubico.vn, thanhlonggroups.com and bbnulaw.com.

These mail servers are often used together with mail25493.maychuemail.com, mx25493.maychuemail.net, mail93156.maychuemail.com, mx93156.maychuemail.net, mail9020.maychuemail.com and mail163166.maychuemail.com.

Host names with one IP number:

mail10322.maychuemail.com points to 222.255.103.22.

mail163188.maychuemail.com points to 103.77.163.188.

mx9322.maychuemail.net points to 112.213.93.22.