`dodungdayhoc.com`

DNSSEC	⚠️ Not signed
A	103.81.87.101^{🇻🇳 HOSTINGVIET-AS-VN103.81.87.0/24 HOSTINGVIET-VN}
NS	`ns-a2.tenten.vn` ⭐
		A	2404:f080:1101:323:a150:95:115:1011^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`va150-95-115-101-1.a018.g.han1.static.cnode.io`
		A	137.59.104.66^{🇻🇳 GMO-ZCOM-AS-VN137.59.104.0/22 RUNSYSTEM-VN}
			PTR	`static-pool.tenten.vn`
NS	`ns-a1.tenten.vn`
		A	2404:f080:1101:323:a150:95:115:1010^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`va150-95-115-101-0.a018.g.han1.static.cnode.io`
		A	137.59.104.65^{🇻🇳 GMO-ZCOM-AS-VN137.59.104.0/22 RUNSYSTEM-VN}
			PTR	`static-pool.tenten.vn`
NS	`ns-a3.tenten.vn`
		A	2404:f080:1101:323:a150:95:115:1012^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`va150-95-115-101-2.a018.g.han1.static.cnode.io`
		A	150.95.111.47^{🇻🇳 GMO-ZCOM-AS-VN150.95.104.0/21 RUNSYSTEM-VN}
			PTR	`ns3.tenten.vn`
MX	`mail.dodungdayhoc.com` ⭐
		A	103.81.87.101^{🇻🇳 HOSTINGVIET-AS-VN103.81.87.0/24 HOSTINGVIET-VN}
TXT	`v=spf1mxaip4:103.81.87.101~all`
SOA	`ns-a2.tenten.vn`noreply@tenten.vn serial=1741832832

`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=1786771749

Previously MX for

dodungdayhoc.com

Subdomains

mail.dodungdayhoc.com

Same first word

dodungdayhoc.com

DNS History

14 records (5 active, 9 former)

●NSns-a1.tenten.vn2026-02-14 → 2026-08-15 · 3 obs

○ 2018-09-15 11:59:04
● 2026-02-14 21:47:56
● 2026-08-15 05:39:34

●NSns-a2.tenten.vn2026-02-14 → 2026-08-15 · 3 obs

○ 2018-09-15 11:59:04
● 2026-02-14 21:47:56
● 2026-08-15 05:39:34

●NSns-a3.tenten.vn2026-02-14 → 2026-08-15 · 3 obs

○ 2018-09-15 11:59:04
● 2026-02-14 21:47:56
● 2026-08-15 05:39:34

○NSns1.zonedns.vn2017-01-29 → 2017-01-29 · 4 obs

○ 2016-05-01 16:15:50
● 2017-01-29 20:49:42
○ 2018-09-15 11:59:04
○ 2026-08-15 05:39:34

○NSns14.vnnetsoft.com2015-06-19 → 2016-02-02 · 4 obs

● 2015-06-19 23:37:36
● 2016-02-02 11:42:10
○ 2016-05-01 16:15:50
○ 2026-08-15 05:39:34

○NSns2.zonedns.vn2017-01-29 → 2017-01-29 · 4 obs

○ 2016-05-01 16:15:50
● 2017-01-29 20:49:42
○ 2018-09-15 11:59:04
○ 2026-08-15 05:39:34

○NSns3.zonedns.vn2017-01-29 → 2017-01-29 · 4 obs

○ 2016-05-01 16:15:50
● 2017-01-29 20:49:42
○ 2018-09-15 11:59:04
○ 2026-08-15 05:39:34

○NSns4.vnnetsoft.com2015-06-19 → 2016-02-02 · 4 obs

● 2015-06-19 23:37:36
● 2016-02-02 11:42:10
○ 2016-05-01 16:15:50
○ 2026-08-15 05:39:34

○NSns4.zonedns.vn2017-01-29 → 2017-01-29 · 4 obs

○ 2016-05-01 16:15:50
● 2017-01-29 20:49:42
○ 2018-09-15 11:59:04
○ 2026-08-15 05:39:34

○MXdodungdayhoc.com2015-06-19 → 2016-02-02 · 4 obs

● 2015-06-19 23:37:36
● 2016-02-02 11:42:10
○ 2016-05-01 16:15:50
○ 2026-08-15 05:39:34

●MXmail.dodungdayhoc.com2017-01-29 → 2026-08-15 · 5 obs

○ 2016-05-01 16:15:50
● 2017-01-29 20:49:42
○ 2018-09-15 11:59:04
● 2026-02-14 21:47:56
● 2026-08-15 05:39:34

●A103.81.87.1012026-02-14 → 2026-08-15 · 3 obs

○ 2018-09-15 11:59:04
● 2026-02-14 21:47:56
● 2026-08-15 05:39:34

○A123.30.181.1432015-06-19 → 2016-02-02 · 4 obs

● 2015-06-19 23:37:36
● 2016-02-02 11:42:10
○ 2016-05-01 16:15:50
○ 2026-08-15 05:39:34

○A128.199.123.312017-01-29 → 2017-01-29 · 4 obs

○ 2016-05-01 16:15:50
● 2017-01-29 20:49:42
○ 2018-09-15 11:59:04
○ 2026-08-15 05:39:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, e.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net...	-
dodungdayhoc.com	ns-a1.tenten.vn, ns-a2.tenten.vn, ns-a3.tenten.vn	-

✅ Authoritative Response

Server:150.95.111.47

NS records: ns-a1.tenten.vn, ns-a2.tenten.vn, ns-a3.tenten.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dodungdayhoc.com (unsigned zone)

⏱️ Timing

Total: 1469ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.81.87.101`
NS	3	`ns-a2.tenten.vn, ns-a1.tenten.vn...`
MX	1	`mail.dodungdayhoc.com (pri: 10)`
TXT	1	`v=spf1mxaip4:103.81.87.101~all`
SOA	1	`ns-a2.tenten.vn noreply.tenten.vn`

Analysis

Hierarchy

dodungdayhoc.com is the parent zone for mail.dodungdayhoc.com.

IP Addresses

dodungdayhoc.com resolves to one IP address: 103.81.87.101.

ns.baonguyenfood.vn, mail.maikeobat.com, mail.camerakhongday.vn and two other host names share IP numbers with dodungdayhoc.com.

Name Servers

dodungdayhoc.com carries NS records delegating to ns-a1.tenten.vn, ns-a2.tenten.vn and ns-a3.tenten.vn.

dodungdayhoc.com partially shares its NS delegation with several other domains, including ngochoan.com, dchomegroup.com, trathainguyen.info and two others.

These name servers regularly co-occur with the name servers ns-b1.tenten.vn, ns-b2.tenten.vn and ns-b3.tenten.vn.

ns-a1.tenten.vn, ns-a2.tenten.vn and ns-a3.tenten.vn are three hostnames that each resolve to a pair of IP addresses: ns-a1.tenten.vn to 137.59.104.65 and 2404:f080:1101:323:a150:95:115:1010, ns-a2.tenten.vn to 137.59.104.66 and 2404:f080:1101:323:a150:95:115:1011, and ns-a3.tenten.vn to 150.95.111.47 and 2404:f080:1101:323:a150:95:115:1012.

Mail Servers

Mail for dodungdayhoc.com is handled by a single mail server, mail.dodungdayhoc.com.

mail.dodungdayhoc.com carries a single IP number, which is 103.81.87.101.

dodungdayhoc.com - robtex.com