`chongthamanvy.com`

DNSSEC	⚠️ Not signed
A	45.252.248.16^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
NS	`ns3.azdigi.com` ⭐
		A	45.252.248.5^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-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.chongthamanvy.com` ⭐
		A	45.252.248.16^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
TXT	`v=spf1 a mx ~all`
SOA	`ns3.azdigi.com`hostmaster@chongthamanvy.com 2025-05-31 #17

`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=1778336556

Previously MX for

chongthamanvy.com

Subdomains

mail.chongthamanvy.com

Same first word

chongthamanvy.com

DNS History

11 records (6 active, 5 former)

●NSns1.dotvndns.vn2015-06-28 → 2026-05-09 · 5 obs

● 2015-06-28 11:13:24
● 2016-06-20 06:51:32
○ 2017-07-02 23:36:18
● 2026-05-01 13:31:54
● 2026-05-09 14:50:08

●NSns2.dotvndns.vn2015-06-28 → 2026-05-09 · 5 obs

● 2015-06-28 11:13:24
● 2016-06-20 06:51:32
○ 2017-07-02 23:36:18
● 2026-05-01 13:31:54
● 2026-05-09 14:50:08

●NSns3.azdigi.com2017-07-02 → 2026-05-09 · 3 obs

○ 2016-06-20 06:51:32
● 2017-07-02 23:36:18
● 2026-05-09 14:50:08

○NSns4.azdigi.com2017-07-02 → 2017-07-02 · 4 obs

○ 2016-06-20 06:51:32
● 2017-07-02 23:36:18
○ 2026-05-01 13:31:54
○ 2026-05-09 14:50:08

●NSnsbak.dotvndns.com2015-06-28 → 2026-05-09 · 6 obs

● 2015-06-28 11:13:24
○ 2015-11-15 18:35:04
● 2016-06-20 06:51:32
○ 2017-07-02 23:36:18
● 2026-05-01 13:31:54
● 2026-05-09 14:50:08

○MXchongthamanvy.com2017-07-02 → 2017-07-02 · 3 obs

● 2017-07-02 23:36:18
○ 2026-05-01 13:31:54
○ 2026-05-09 14:50:08

●MXmail.chongthamanvy.com2026-05-01 → 2026-05-09 · 3 obs

○ 2017-07-02 23:36:18
● 2026-05-01 13:31:54
● 2026-05-09 14:50:08

○A103.221.221.202017-07-02 → 2017-07-02 · 4 obs

○ 2016-06-20 06:51:32
● 2017-07-02 23:36:18
○ 2026-05-01 13:31:54
○ 2026-05-09 14:50:08

○A123.30.174.1202015-06-28 → 2015-11-15 · 4 obs

● 2015-06-28 11:13:24
● 2015-11-15 18:35:04
○ 2016-06-20 06:51:32
○ 2026-05-09 14:50:08

○A143.95.38.822016-06-20 → 2016-06-20 · 4 obs

○ 2015-11-15 18:35:04
● 2016-06-20 06:51:32
○ 2017-07-02 23:36:18
○ 2026-05-09 14:50:08

●A45.252.248.162026-05-01 → 2026-05-09 · 3 obs

○ 2017-07-02 23:36:18
● 2026-05-01 13:31:54
● 2026-05-09 14:50:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
chongthamanvy.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:112.213.89.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for chongthamanvy.com (unsigned zone)

⏱️ Timing

Total: 3493ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.252.248.16`
NS	3	`ns1.dotvndns.vn, nsbak.dotvndns.com...`
MX	1	`mail.chongthamanvy.com (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`ns3.azdigi.com hostmaster.chongthamanvy.`

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

The parent of mail.chongthamanvy.com is chongthamanvy.com.

IP Addresses

chongthamanvy.com points to a single IP address: 45.252.248.16.

Other host names such as mail.phongkhamtamphuc.vn, bb.ccc.dddd.hoaiphuonghsk.quiz.edu.vn, www.quantrihocvien.hanoilink.quiz.edu.vn, wbsubdomain.a.bb.ccc.dddd.hsk.quiz.edu.vn and www.thenaturarts.com.anchorrestaurant.vn share IPs with chongthamanvy.com.

Name Servers

chongthamanvy.com is delegated to four name servers: ns3.azdigi.com, nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

chongthamanvy.com at least partially shares name servers with other domains, for example dinhvixemay.com, tma-fintech.center, chuongduong.com.vn, vitis-einvoice.com and hikvision.com.vn.

These name servers are often used with the following name servers: ns4.azdigi.com, ns1.pavietnam.vn, ns3.dotvndns.vn, ns2.pavietnam.vn, nsbak.pavietnam.net, ns1.nina.vn, nsbak.dotvndns.vn and ns4.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.

Host names with one IP number:

ns3.azdigi.com points to 45.252.248.5.

Mail Servers

The mail.chongthamanvy.com mail server handles chongthamanvy.com.

mail.chongthamanvy.com points to a single IP number: 45.252.248.16.

chongthamanvy.com - robtex.com