`simphongthuygiare.com`

DNSSEC	⚠️ Not signed
A	14.225.209.149^{🇻🇳 VNPT-AS-VN14.225.209.0/24 VNPT}
NS	`ns1.coi.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`
		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	`mail.simphongthuygiare.com` ⭐
		A	14.225.209.149^{🇻🇳 VNPT-AS-VN14.225.209.0/24 VNPT}
TXT	`v=spf1 a mx ~all`
SOA	`ns1.coi.vn`hostmaster@simphongthuygiare.com 2024-11-09 #6

`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=1774675127

Subdomains

mail.simphongthuygiare.com

Same first word

simphongthuygiare.com

DNS History

13 records (6 active, 7 former)

●NSns1.coi.vn2015-11-04 → 2026-03-28 · 3 obs

○ 2015-06-28 04:13:44
● 2015-11-04 09:37:24
● 2026-03-28 05:46:12

●NSns1.dotvndns.vn2026-03-06 → 2026-03-28 · 3 obs

○ 2019-03-05 19:38:02
● 2026-03-06 02:23:42
● 2026-03-28 05:46:12

○NSns11025.ztomy.com2015-06-28 → 2015-06-28 · 3 obs

● 2015-06-28 04:13:44
○ 2015-11-04 09:37:24
○ 2026-03-28 05:46:12

○NSns2.coi.vn2015-11-04 → 2019-03-05 · 5 obs

○ 2015-06-28 04:13:44
● 2015-11-04 09:37:24
● 2019-03-05 19:38:02
○ 2026-03-06 02:23:42
○ 2026-03-28 05:46:12

●NSns2.dotvndns.vn2026-03-06 → 2026-03-28 · 3 obs

○ 2019-03-05 19:38:02
● 2026-03-06 02:23:42
● 2026-03-28 05:46:12

○NSns21025.ztomy.com2015-06-28 → 2015-06-28 · 3 obs

● 2015-06-28 04:13:44
○ 2015-11-04 09:37:24
○ 2026-03-28 05:46:12

●NSnsbak.dotvndns.com2026-03-06 → 2026-03-28 · 3 obs

○ 2019-03-05 19:38:02
● 2026-03-06 02:23:42
● 2026-03-28 05:46:12

●MXmail.simphongthuygiare.com2015-11-04 → 2026-03-28 · 5 obs

● 2015-11-04 09:37:24
● 2017-02-08 18:00:00
○ 2019-03-05 19:38:02
● 2026-03-06 02:23:42
● 2026-03-28 05:46:12

○A112.213.89.32015-11-04 → 2015-11-04 · 4 obs

○ 2015-06-28 04:13:44
● 2015-11-04 09:37:24
○ 2016-01-23 20:58:30
○ 2026-03-28 05:46:12

○A112.213.95.1322016-01-23 → 2017-02-08 · 5 obs

○ 2015-11-04 09:37:24
● 2016-01-23 20:58:30
● 2017-02-08 18:00:00
○ 2019-03-05 19:38:02
○ 2026-03-28 05:46:12

●A14.225.209.1492026-03-06 → 2026-03-28 · 3 obs

○ 2019-03-05 19:38:02
● 2026-03-06 02:23:42
● 2026-03-28 05:46:12

○A141.8.226.192015-06-28 → 2015-06-28 · 3 obs

● 2015-06-28 04:13:44
○ 2015-11-04 09:37:24
○ 2026-03-28 05:46:12

○A27.0.12.1632019-03-05 → 2019-03-05 · 4 obs

○ 2017-02-08 18:00:00
● 2019-03-05 19:38:02
○ 2026-03-06 02:23:42
○ 2026-03-28 05:46:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net...	-
simphongthuygiare.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 simphongthuygiare.com (unsigned zone)

⏱️ Timing

Total: 1353ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`14.225.209.149`
NS	3	`ns1.dotvndns.vn, ns2.dotvndns.vn...`
MX	1	`mail.simphongthuygiare.com (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`ns1.coi.vn hostmaster.simphongthuygiare.`

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

mail.simphongthuygiare.com has simphongthuygiare.com as its parent.

IP Addresses

simphongthuygiare.com maps to IP address 14.225.209.149.

Other host names for instance khosimphongthuy.com and mail.simphongthuygiare.com share IP numbers with simphongthuygiare.com.

Name Servers

simphongthuygiare.com is delegated to four name servers: nsbak.dotvndns.com, ns1.coi.vn, ns1.dotvndns.vn and ns2.dotvndns.vn.

simphongthuygiare.com at least partially shares name servers with other domains such as website500k.net, delta-vn.net, amaytinhbang.com.vn, pkdongphuong.com.vn and chetaomay.net.

these name servers are commonly used alongside the name servers ns1.pavietnam.vn, ns2.pavietnam.vn, ns3.dotvndns.vn, nsbak.pavietnam.net and nsbak.dotvndns.vn.

Two-IP host names

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

One-IP host names

ns1.coi.vn points to 112.213.89.3

Host names that point to 112.213.89.3

ns1.dotvndns.vn and ns1.coi.vn

Mail Servers

simphongthuygiare.com is handled by a single mail server, mail.simphongthuygiare.com.

mail.simphongthuygiare.com points to one IP number: 14.225.209.149.

simphongthuygiare.com - robtex.com