`phuongtung.com`

DNSSEC	⚠️ Not signed
A	103.56.161.108^{🇻🇳 VNPT-AS-VN103.56.160.0/22 INETSOFT-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`
NS	`ns1.dotvndns.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	`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`
MX	`phuongtung-com.mail.protection.outlook.com` ⭐
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms88017254`
SOA	`nsbak.dotvndns.com`hostmaster@phuongtung.com 2026-03-17 #49

`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=1778410101

Same first word

phuongtung.com

phuongtung.vn

DNS History

9 records (5 active, 4 former)

●NSns1.dotvndns.vn2015-08-20 → 2026-05-10 · 5 obs

● 2015-08-20 13:27:20
● 2016-01-31 07:36:42
○ 2016-02-28 07:34:02
● 2020-01-03 03:44:14
● 2026-05-10 10:49:04

●NSns2.dotvndns.vn2015-08-20 → 2026-05-10 · 2 obs

● 2015-08-20 13:27:20
● 2026-05-10 10:49:04

●NSnsbak.dotvndns.com2015-08-20 → 2026-05-10 · 2 obs

● 2015-08-20 13:27:20
● 2026-05-10 10:49:04

○MXmx.yandex.ru2015-08-20 → 2016-01-31 · 4 obs

● 2015-08-20 13:27:20
● 2016-01-31 07:36:42
○ 2016-02-28 07:34:02
○ 2026-05-10 10:49:04

●MXphuongtung-com.mail.protection.outlook.com2016-02-28 → 2026-05-10 · 3 obs

○ 2016-01-31 07:36:42
● 2016-02-28 07:34:02
● 2026-05-10 10:49:04

○A103.53.168.2212026-03-11 → 2026-05-10 · 2 obs

○ 2026-03-11 10:18:34
○ 2026-05-10 10:49:04

●A103.56.161.1082026-03-11 → 2026-05-10 · 3 obs

○ 2020-01-03 03:44:14
● 2026-03-11 10:18:34
● 2026-05-10 10:49:04

○A112.213.89.382016-06-30 → 2020-01-03 · 5 obs

○ 2016-05-22 19:51:04
● 2016-06-30 15:23:24
● 2020-01-03 03:44:14
○ 2026-03-11 10:18:34
○ 2026-05-10 10:49:04

○A113.161.204.1922015-08-20 → 2016-05-22 · 4 obs

● 2015-08-20 13:27:20
● 2016-05-22 19:51:04
○ 2016-06-30 15:23:24
○ 2026-05-10 10:49:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net...	-
phuongtung.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:222.255.121.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for phuongtung.com (unsigned zone)

⏱️ Timing

Total: 1951ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.56.161.108`
NS	3	`nsbak.dotvndns.com, ns2.dotvndns.vn...`
MX	1	`phuongtung-com.mail.protection.outlook.c`
TXT	2	`MS=ms88017254, v=spf1 include:spf.protection.outlook.co`
SOA	1	`nsbak.dotvndns.com hostmaster.phuongtung`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

phuongtung.com resolves to a single IP address: 103.56.161.108.

Other host names such as phuongtungmobile.com, member.phuongtung.vn and phuongtung.vn share IP numbers with phuongtung.com.

Name Servers

phuongtung.com is delegated to three name servers: nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

phuongtung.com at least partially shares name servers with other domains, including 4net.vn, nhansamtuoi.net, bonguonthuyluc.com, vietlott.com and nhuaduong.net.vn.

These name servers are commonly used with the name servers ns1.pavietnam.vnns3.dotvndns.vnns2.pavietnam.vnnsbak.pavietnam.netns4.dotvndns.vn and nsbak.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

Mail Servers

phuongtung.com is handled by a single mail server, phuongtung-com.mail.protection.outlook.com.

phuongtung.com - robtex.com

phuongtung.com

com