www.prep.vn - robtex.com

www.prep.vn

DNSSEC⚠️ Not signed
A61.28.230.177🇻🇳 CMC-461.28.230.0/24 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

prep.vn

DNSSEC⚠️ Not signed
A61.28.230.177🇻🇳 CMC-461.28.230.0/24 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
NSns1.pavietnam.vn ⭐
NSns2.pavietnam.vn
NSnsbak.pavietnam.net
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
MXmxa.mailgun.org(10)
MXmxb.mailgun.org(10)
TXTgoogle-site-verification=-_xzUZtbgZw3bUr3TcpTf5jAljCaYY2QRKK2BBVU09w
TXTgoogle-site-verification=y8FYGJYzg3XIIVYnqyEy6hRiOL_pv5TH1LVVnxtmviA
TXTMS=7A0609D1C16C77B3252CB5570805E3421563FF36
TXTv=spf1 include:mailgun.org ~all
TXTv=spf1 include:_spf.google.com ~all
TXTgoogle-site-verification=WLx4NgLAp5Uy4haUCPp0_28iuCh0xGM2vH8fJYmOA1s
TXTgoogle-site-verification=5tPqSEqwxuWrpAKlCja6Ay4lg4zlCZX4cNEnXb8bZlM
SOAns1.pavietnam.vnhostmaster@prep.vn 2026-04-28 #22

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DNS History

1 record (1 active, 0 former)

A61.28.230.177
●A61.28.230.1772026-05-01 → 2026-05-15 · 2 obs
● 2026-05-01 08:51:36
● 2026-05-15 02:07:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
prep.vnns2.pavietnam.vn, nsbak.pavietnam.net, ns1.pavietnam.vn4 records

✅ Authoritative Response

Server:222.255.121.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prep.vn (unsigned zone)

⏱️ Timing

Total: 1591ms | Queries: -

📄 Records

TypeCountSample Data
A161.28.230.177

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.pavietnam.vn, ns2.pavietnam.vn, ns1.pavietnam.vn...)

Analysis

IP Addresses

www.prep.vn points to a single IP address: 61.28.230.177.

Other host names such as maintenance.prep.vn, virtualspeakingroom.com and prep.vn share IP numbers with www.prep.vn.