`office.softech.vn`

DNSSEC	⚠️ Not signed
A	203.171.28.8^{🇻🇳 CMC-1203.171.28.0/23 CMCTELECOM-VN}
		PTR	`static.cmcti.vn`

`softech.vn`

	DNSSEC	⚠️ Not signed
	A	203.171.28.8^{🇻🇳 CMC-1203.171.28.0/23 CMCTELECOM-VN}
	NS	`ns3.vdc3.vn` ⭐
	NS	`ns4.vdc3.vn`
	MX	`alt1.aspmx.l.google.com` ⭐
	MX	`alt2.aspmx.l.google.com` ⭐
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	MX	`aspmx.l.google.com`⁽¹⁰⁾
	TXT	`google-site-verification=RPl9VCHMAAL03BJ82wAXyIyfL7Cz_YVOhL3d3k4UGl4`
	TXT	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCgN8sEctxx4mi/Qe23NpK...`
	SOA	`ns3.vdc3.vn`vdconline@tld 2026-05-08 #75

Same first word

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office.aero

office.store

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office.se

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iceoff.se

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effico.mobi

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DNS History

2 records (1 active, 1 former)

○A104.155.204.822020-02-02 → 2020-02-02 · 3 obs

● 2020-02-02 19:41:44
○ 2026-03-23 18:06:12
○ 2026-07-18 18:50:50

●A203.171.28.82026-03-23 → 2026-07-18 · 3 obs

○ 2020-02-02 19:41:44
● 2026-03-23 18:06:12
● 2026-07-18 18:50:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	b.dns-servers.vn, d.dns-servers.vn, h.dns-servers.vn, c.dns-servers.vn...	15 records
softech.vn	ns4.vdc3.vn, ns3.vdc3.vn	-

✅ Authoritative Response

Server:14.225.41.137

NS records: ns4.vdc3.vn, ns3.vdc3.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for softech.vn (unsigned zone)

⏱️ Timing

Total: 2295ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.171.28.8`

📌 Glue Records Collected

Total: 15

In-bailiwick: 15 (h.dns-servers.vn, g.dns-servers.vn, f.dns-servers.vn...)

Analysis

IP Addresses

office.softech.vn points to a single IP number: 203.171.28.8.

Additional host names — myai.softech.edu.vn, quizcity-tristar-api.softech.edu.vn, cloud.softech.vn and two others — share IP numbers with office.softech.vn.

office.softech.vn - dns.ninja