`hpahcmc.org`

DNSSEC	⚠️ Not signed
A	112.78.2.49^{🇻🇳 ODS-AS-VN112.78.2.0/24 ODSJSC-VN}
NS	`nsbak.pavietnam.net` ⭐
		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.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	`ns2.pavietnam.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	`ssl.emailserver.vn` ⭐
		A	203.171.31.205^{🇻🇳 CMC-1203.171.31.0/24 CMCTELECOM-VN}
			PTR	`static.cmcti.vn`
TXT	`v=spf1 mx include:emailserver.vn -all`
SOA	`nsbak.pavietnam.net`hostmaster@hpahcmc.org 2025-11-11 #21

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1777092724

Subdomains

mail.hpahcmc.org

Same first word

hpahcmc.org

DNS History

10 records (5 active, 5 former)

○NSns1.dotvndns.vn2015-07-24 → 2015-07-24 · 3 obs

● 2015-07-24 22:01:42
○ 2015-11-27 07:19:54
○ 2026-04-25 05:19:36

●NSns1.pavietnam.vn2015-11-27 → 2026-04-25 · 6 obs

○ 2015-07-24 22:01:42
● 2015-11-27 07:19:54
● 2016-06-21 09:09:32
○ 2017-02-10 03:42:56
● 2018-09-12 02:33:58
● 2026-04-25 05:19:36

○NSns2.dotvndns.vn2015-07-24 → 2015-07-24 · 3 obs

● 2015-07-24 22:01:42
○ 2015-11-27 07:19:54
○ 2026-04-25 05:19:36

●NSns2.pavietnam.vn2015-11-27 → 2026-04-25 · 3 obs

○ 2015-07-24 22:01:42
● 2015-11-27 07:19:54
● 2026-04-25 05:19:36

●NSnsbak.pavietnam.net2017-02-10 → 2026-04-25 · 3 obs

○ 2016-06-21 09:09:32
● 2017-02-10 03:42:56
● 2026-04-25 05:19:36

○MXmail.hpahcmc.org2015-07-24 → 2018-09-12 · 7 obs

● 2015-07-24 22:01:42
● 2016-03-01 19:12:36
○ 2016-06-21 09:09:32
● 2017-02-10 03:42:56
● 2018-09-12 02:33:58
○ 2026-03-13 13:36:00
○ 2026-04-25 05:19:36

●MXssl.emailserver.vn2026-03-13 → 2026-04-25 · 3 obs

○ 2018-09-12 02:33:58
● 2026-03-13 13:36:00
● 2026-04-25 05:19:36

○A112.213.89.382015-07-24 → 2016-03-01 · 4 obs

● 2015-07-24 22:01:42
● 2016-03-01 19:12:36
○ 2016-06-21 09:09:32
○ 2026-04-25 05:19:36

○A112.78.2.1542016-06-21 → 2018-09-12 · 5 obs

○ 2016-03-01 19:12:36
● 2016-06-21 09:09:32
● 2018-09-12 02:33:58
○ 2026-03-13 13:36:00
○ 2026-04-25 05:19:36

●A112.78.2.492026-03-13 → 2026-04-25 · 3 obs

○ 2018-09-12 02:33:58
● 2026-03-13 13:36:00
● 2026-04-25 05:19:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org	-
hpahcmc.org	nsbak.pavietnam.net, ns2.pavietnam.vn, ns1.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.3

NS records: nsbak.pavietnam.net, ns2.pavietnam.vn, ns1.pavietnam.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hpahcmc.org (unsigned zone)

⏱️ Timing

Total: 1705ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.78.2.49`
NS	3	`ns1.pavietnam.vn, nsbak.pavietnam.net...`
MX	1	`ssl.emailserver.vn (pri: 10)`
TXT	1	`v=spf1 mx include:emailserver.vn -all`
SOA	1	`nsbak.pavietnam.net hostmaster.hpahcmc.o`

Analysis

Hierarchy

mail.hpahcmc.org is a child of hpahcmc.org.

IP Addresses

hpahcmc.org resolves to one IP number: 112.78.2.49.

Other host names, for instance vatlieuchongtham.vn, sieuthibepsaigon.vn, chongtham.net.vn, fujifilm.com.vn and readtoolead.com share IP numbers with hpahcmc.org.

Name Servers

hpahcmc.org is delegated to three name servers: nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

hpahcmc.org at least partially shares name servers with other domains, including trigauphaidungcach.com, cosplay.vn, marketingwifi.vn, utt.edu.vn and dhv.com.vn.

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

Host names with two IP numbers:

nsbak.pavietnam.net: 2406:9c80::9000:302 and 112.213.89.22

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

ns2.pavietnam.vn: 2406:9c80::9000:111 and 222.255.121.247

Mail Servers

A single mail server handles hpahcmc.org, ssl.emailserver.vn.

hpahcmc.org shares the same mail server setup as other domains, for instance truongnoitrubantru.edu.vn, tinpha(0x74697473)c.com, alohasaigon.edu.vn, cavatcaocap.com and investdanang.gov.vn.

hpahcmc.org shares some mail servers with other domains, for instance duadungmotlan.com.vn, doruco.com.vn, justnest.vn and banhay.com.

Host name ssl.emailserver.vn resolves to a single IP: 203.171.31.205.

hpahcmc.org - robtex.com

hpahcmc.org

org