mail.sidotech.com - robtex.com

mail.sidotech.com

CNAMEpro49.emailserver.vn
DNSSEC⚠️ Not signed
A103.15.48.94🇻🇳 ODS-AS-VN103.15.48.0/24 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
PTRpro49.emailserver.vn

sidotech.com

DNSSEC⚠️ Not signed
A137.59.105.45🇻🇳 GMO-ZCOM-AS-VN137.59.105.0/24 RUNSYSTEM-VN
NSns1.matbao.com ⭐
NSns2.matbao.com
MXpro49.emailserver.vn ⭐
TXTv=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all
SOAns1.matbao.comadmin@matbao.com 2026-02-24 #1

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DNS History

1 record (1 active, 0 former)

CNAMEpro49.emailserver.vn
●CNAMEpro49.emailserver.vn2026-05-09 → 2026-05-09 · 2 obs
● 2026-05-09 09:26:50
● 2026-05-09 09:26:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net, a.gtld-servers.net...-
sidotech.comns1.matbao.com, ns2.matbao.com4 records

✅ Authoritative Response

Server:103.138.89.11

NS records: ns1.matbao.com, ns2.matbao.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sidotech.com (unsigned zone)

⏱️ Timing

Total: 720ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1pro49.emailserver.vn

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.matbao.com, ns1.matbao.com, ns2.matbao.com...)

Analysis

IP Addresses

mail.sidotech.com points to a single IP address: 103.15.48.94.

Other host names such as sv48d94.emailserver.vn, pro49.emailserver.vn, mail.cesti.gov.vn, mail.techport.vn and pro39.emailserver.vn share IPs with mail.sidotech.com.