`m.tcdevelopment.edu.vn`

	DNSSEC	⚠️ Not signed
	A	154.91.56.188^{🇸🇨 PEGTECHINC154.91.48.0/20 Arosscloud Inc}

`tcdevelopment.edu.vn`

	DNSSEC	⚠️ Not signed
	A	103.45.229.40^{🇻🇳 QTSP103.45.229.0/24 CMI (Customer Route)}
	NS	`ns1.dns.net.vn` ⭐
	NS	`ns2.dns.net.vn`
	MX	`mail.tcdevelopment.edu.vn` ⭐
	TXT	`v=spf1 a mx ip4:103.45.229.114 ~all`
	SOA	`ns1.dns.net.vn`webmaster@dns.net.vn serial=1765936861

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DNS History

1 record (1 active, 0 former)

●A154.91.56.1882026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 01:43:24
● 2026-05-09 14:12:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
tcdevelopment.edu.vn	ns1.dns.net.vn, ns2.dns.net.vn	-

✅ Authoritative Response

Server:103.45.229.100

NS records: ns1.dns.net.vn, ns2.dns.net.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tcdevelopment.edu.vn (unsigned zone)

⏱️ Timing

Total: 2629ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`154.91.56.188`

Analysis

IP Addresses

m.tcdevelopment.edu.vn points to IP number: 154.91.56.188.

Other host names such as 74acecd5-fdfd-4e36-8eeb-ab5c949e4100.tcdevelopment.edu.vn, bb.ccc.dddd.webdisk.tcdevelopment.edu.vn, bb.ccc.dddd.tcdevelopment.edu.vn, cpcontacts.tcdevelopment.edu.vn and a.bb.ccc.dddd.webdisk.tcdevelopment.edu.vn share IPs with m.tcdevelopment.edu.vn.

m.tcdevelopment.edu.vn - robtex.com