`vienthongtin.com`

DNSSEC	⚠️ Not signed
NS	`ns1.pavietnam.vn` ⭐
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
		A	112.213.89.3^{🇻🇳 SUPERDATA112.213.89.0/24 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}
			PTR	`ns1.dotvndns.vn`
NS	`ns1.dotvndns.vn` ⚠️ Not in zone NS records
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
		A	112.213.89.3^{🇻🇳 SUPERDATA112.213.89.0/24 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}
			PTR	`ns1.dotvndns.vn`
NS	`ns2.dotvndns.vn`
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
NS	`nsbak.dotvndns.com`
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 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}
			PTR	`ns8922.dotvndns.vn`
MX	`mgw-a.fpt.net` ⭐
		A	1.54.232.11^{🇻🇳 FPT-AS-AP1.54.224.0/20 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`mgw-a.fpt.net`
MX	`mgw-b.fpt.net` ⭐
		A	1.54.232.12^{🇻🇳 FPT-AS-AP1.54.224.0/20 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`mgw-b.fpt.net`
TXT	`v=spf1 redirect=_spf.fpt.net`
TXT	`MS=ms70516794`
TXT	`google-site-verification=pBXswLIcqrRUsEW0xV30ABHmtkOYWJ73icq-zOs4YCs`
SOA	`ns1.pavietnam.vn`hostmaster@vienthongtin.com 2026-01-15 #95

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778747491

Subdomains

autodiscover.vienthongtin.com

Same first word

vienthongtin.com

DNS History

10 records (6 active, 4 former)

○NSdns21.fpt.vn2016-12-13 → 2016-12-13 · 3 obs

● 2016-12-13 20:00:30
○ 2026-03-26 17:37:42
○ 2026-05-14 08:54:14

○NSdns22.fpt.vn2016-12-13 → 2016-12-13 · 3 obs

● 2016-12-13 20:00:30
○ 2026-03-26 17:37:42
○ 2026-05-14 08:54:14

●NSns1.dotvndns.vn2026-03-26 → 2026-05-14 · 3 obs

○ 2016-12-13 20:00:30
● 2026-03-26 17:37:42
● 2026-05-14 08:54:14

●NSns1.pavietnam.vn2026-03-26 → 2026-05-14 · 3 obs

○ 2016-12-13 20:00:30
● 2026-03-26 17:37:42
● 2026-05-14 08:54:14

●NSns2.dotvndns.vn2026-03-26 → 2026-05-14 · 3 obs

○ 2016-12-13 20:00:30
● 2026-03-26 17:37:42
● 2026-05-14 08:54:14

●NSnsbak.dotvndns.com2026-03-26 → 2026-05-14 · 3 obs

○ 2016-12-13 20:00:30
● 2026-03-26 17:37:42
● 2026-05-14 08:54:14

●MXmgw-a.fpt.net2026-03-26 → 2026-05-14 · 3 obs

○ 2016-12-13 20:00:30
● 2026-03-26 17:37:42
● 2026-05-14 08:54:14

●MXmgw-b.fpt.net2026-03-26 → 2026-05-14 · 3 obs

○ 2016-12-13 20:00:30
● 2026-03-26 17:37:42
● 2026-05-14 08:54:14

○MXmta1.fpt.net2016-12-13 → 2016-12-13 · 3 obs

● 2016-12-13 20:00:30
○ 2026-03-26 17:37:42
○ 2026-05-14 08:54:14

○A118.69.135.962016-12-13 → 2016-12-13 · 3 obs

● 2016-12-13 20:00:30
○ 2026-03-26 17:37:42
○ 2026-05-14 08:54:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, d.gtld-servers.net, g.gtld-servers.net, f.gtld-servers.net...	-
vienthongtin.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:112.213.89.22

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vienthongtin.com (unsigned zone)

⏱️ Timing

Total: 2544ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`nsbak.dotvndns.com, ns2.dotvndns.vn`
MX	2	`mgw-b.fpt.net (pri: 10), mgw-a.fpt.net (pri: 10)`
TXT	3	`MS=ms70516794, google-site-verification=pBXswLIcqrRUsEW...`
SOA	1	`ns1.pavietnam.vn hostmaster.vienthongtin`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

Hierarchy

The parent of autodiscover.vienthongtin.com is vienthongtin.com.

Name Servers

vienthongtin.com's delegation is handled by four name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns1.pavietnam.vn.

vienthongtin.com partially shares name servers with other domains; examples include dalatcity.net, vuontam.net, tpcorp.vn, poki.vn and digiworld.pro.

These name servers are commonly used with ns2.pavietnam.vn, nsbak.pavietnam.net and ns3.dotvndns.vn.

Host names with two IP numbers:

nsbak.dotvndns.com points to: 2406:9c80::9000:302 and 112.213.89.22.

ns1.dotvndns.vn points to: 2406:9c80::66 and 112.213.89.3.

ns2.dotvndns.vn points to: 2406:9c80::9000:111 and 222.255.121.247.

ns1.pavietnam.vn points to: 2406:9c80::66 and 112.213.89.3.

Host names that point to 2406:9c80::66: ns1.dotvndns.vn and ns1.pavietnam.vn.

Host names that point to 112.213.89.3: ns1.dotvndns.vn and ns1.pavietnam.vn.

Mail Servers

vienthongtin.com is handled by two mail servers: mgw-a.fpt.net and mgw-b.fpt.net.

vienthongtin.com uses the same mail server setup as other domains, for example fpt.net.

Host names with one IP number: The host name mgw-a.fpt.net points to 1.54.232.11 and the host name mgw-b.fpt.net points to 1.54.232.12.

vienthongtin.com - robtex.com