`simphongthuy.com`

DNSSEC	⚠️ Not signed
NS	`ns1.zonedns.vn` ⭐
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	64.176.84.220^{🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix}
			PTR	`ns1.zonedns.vn`
NS	`ns2.zonedns.vn`
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	103.176.178.51^{🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN}
NS	`ns3.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.36.30^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
NS	`ns4.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.39.159^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
SOA	`ns1.zonedns.vn`root@simphongthuy.com 2024-09-19 #4

`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=1777585526

Previously MX for

simphongthuy.com

Subdomains

www.simphongthuy.com

root.simphongthuy.com

Same first word

simphongthuy.com.vn

simphongthuy.net

simphongthuy.vn

simphongthuy.com

Similar names

phongthuysim.com

DNS History

7 records (4 active, 3 former)

●NSns1.zonedns.vn2015-08-26 → 2026-04-30 · 2 obs

● 2015-08-26 07:09:18
● 2026-04-30 21:54:22

●NSns2.zonedns.vn2015-08-26 → 2026-04-30 · 2 obs

● 2015-08-26 07:09:18
● 2026-04-30 21:54:22

●NSns3.zonedns.vn2015-08-26 → 2026-04-30 · 2 obs

● 2015-08-26 07:09:18
● 2026-04-30 21:54:22

●NSns4.zonedns.vn2026-02-14 → 2026-04-30 · 3 obs

○ 2015-08-26 07:09:18
● 2026-02-14 18:45:10
● 2026-04-30 21:54:22

○MXsimphongthuy.com2015-08-26 → 2026-02-17 · 4 obs

● 2015-08-26 07:09:18
● 2026-02-17 02:58:54
○ 2026-02-18 03:05:28
○ 2026-04-30 21:54:22

○A202.134.18.262015-08-26 → 2016-01-24 · 4 obs

● 2015-08-26 07:09:18
● 2016-01-24 03:46:50
○ 2016-04-24 00:00:30
○ 2026-04-30 21:54:22

○A203.162.235.762016-04-24 → 2026-02-17 · 5 obs

○ 2016-01-24 03:46:50
● 2016-04-24 00:00:30
● 2026-02-17 02:58:54
○ 2026-02-18 03:05:28
○ 2026-04-30 21:54:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
simphongthuy.com	ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn	-

✅ Authoritative Response

Server:64.176.84.220

NS records: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn, ns4.zonedns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simphongthuy.com (unsigned zone)

⏱️ Timing

Total: 1457ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns3.zonedns.vn, ns4.zonedns.vn...`
SOA	1	`ns1.zonedns.vn root.simphongthuy.com`

Analysis

Hierarchy

simphongthuy.com is a parent of www.simphongthuy.com and root.simphongthuy.com.

Name Servers

simphongthuy.com's delegation is handled by four name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.

simphongthuy.com partially shares name servers with other domains; examples include fyslog.com, tancuongxanh.vn, carsmart.vn, gritschool.edu.vn and gasthaibinh.com.

These name servers are often used with the name servers ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.

Host names with two IP numbers:

ns1.zonedns.vn points to: 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 64.176.84.220

ns2.zonedns.vn points to: 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 103.176.178.51

ns3.zonedns.vn points to: 2001:df1:3200::15 and 103.28.36.30

ns4.zonedns.vn points to: 2001:df1:3200::15 and 103.28.39.159

Names pointing to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33: ns1.zonedns.vn and ns2.zonedns.vn

Names pointing to 2001:df1:3200::15: ns3.zonedns.vn and ns4.zonedns.vn

simphongthuy.com - robtex.com