`nsbak.2tech.com.vn`

	DNSSEC	⚠️ Not signed
	A	171.244.17.89^{🇻🇳 VTDC-AS-VN171.244.16.0/22 Proxy-registered route object}

`2tech.com.vn`

	DNSSEC	⚠️ Not signed
	A	171.244.17.89^{🇻🇳 VTDC-AS-VN171.244.16.0/22 Proxy-registered route object}
	NS	`ns1.dotvndns.vn` ⭐
	NS	`ns2.dotvndns.vn`
	NS	`nsbak.dotvndns.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`v=spf1 a mx ~all`
	SOA	`ns1.dotvndns.vn`hostmaster@2tech.com.vn 2026-04-29 #13

NS for

hocsale.com

Previously NS for

googe.vn

tdkbamboo.com

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DNS History

1 record (1 active, 0 former)

●A171.244.17.892026-03-28 → 2026-05-11 · 2 obs

● 2026-03-28 21:18:58
● 2026-05-11 02:47:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
2tech.com.vn	ns2.dotvndns.vn, ns1.dotvndns.vn, nsbak.dotvndns.com	-

✅ Authoritative Response

Server:112.213.89.22

NS records: ns2.dotvndns.vn, ns1.dotvndns.vn, nsbak.dotvndns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 2tech.com.vn (unsigned zone)

⏱️ Timing

Total: 1952ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`171.244.17.89`

Analysis

Name Server Role

nsbak.2tech.com.vn serves as the name server for hocsale.com.

ns1.2tech.com.vn and ns2.2tech.com.vn are commonly used as name servers together with nsbak.2tech.com.vn.

IP Addresses

nsbak.2tech.com.vn maps to IP address 171.244.17.89.

Other host names, for instance www.2tech.com.vn, seoking.vn, sandeck.com.vn, banhang010.2tech.com.vn and seogiarehanoi.com share IP numbers with nsbak.2tech.com.vn.

nsbak.2tech.com.vn - robtex.com