mail.jyoung.com - robtex.com

mail.jyoung.com

CNAMEmx.trangwebvang.com
DNSSEC⚠️ Not signed
A221.132.34.102🇻🇳 VTN-1221.132.32.0/22 VNPT
PTRtwv102.trangwebvang.net

jyoung.com

DNSSEC⚠️ Not signed
A221.132.30.236🇻🇳 VTN-1221.132.30.0/24 VNPT
NSns1.trangwebvang.net ⭐ ⚠️ Not in parent delegation
NSns1.vipvn.com ⚠️ Not in zone NS records
NSns2.trangwebvang.net ⚠️ Not in parent delegation
NSns2.vipvn.com ⚠️ Not in zone NS records
NSns3.trangwebvang.net ⚠️ Not in zone NS records
NSns4.trangwebvang.net ⚠️ Not in zone NS records
MXmx.trangwebvang.com ⭐
TXTv=spf1 redirect=spf.trangwebvang.com
SOAns1.trangwebvang.nethenryducmanh@gmail.com 2026-03-18 #1

Previously MX for

jyoung.com

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A221.132.37.17CNAMEmx.trangwebvang.com
○A221.132.37.172015-07-18 → 2016-03-04 · 4 obs
● 2015-07-18 09:01:44
● 2016-03-04 19:52:06
○ 2026-04-18 22:46:52
○ 2026-04-18 22:46:54
●CNAMEmx.trangwebvang.com2026-04-18 → 2026-04-18 · 2 obs
● 2026-04-18 22:46:52
● 2026-04-18 22:46:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
jyoung.comns1.vipvn.com, ns2.vipvn.com, ns3.trangwebvang.net, ns4.trangwebvang.net2 records

✅ Authoritative Response

Server:167.99.66.129

NS records: ns1.vipvn.com, ns2.vipvn.com, ns3.trangwebvang.net, ns4.trangwebvang.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jyoung.com (unsigned zone)

⏱️ Timing

Total: 4316ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1mx.trangwebvang.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.vipvn.com, ns2.vipvn.com)

Analysis

IP Addresses

mail.jyoung.com resolves to one IP number: 221.132.34.102.

Other host names, for instance twv102.trangwebvang.net, srv2.twv.vn, mail.quando.com.vn, mail.trangwebvang.com and mail.hmfitting.com share IP numbers with mail.jyoung.com.