`sourcecode.vn`

DNSSEC	⚠️ Not signed
A	112.213.91.49^{🇻🇳 SUPERDATA112.213.91.0/24 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	`mx9149.superdata.vn`
NS	`ns1.zonedns.vn` ⭐ ⚠️ Not in parent delegation
		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` ⚠️ Not in parent delegation
		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	`ns2008.nhanhoa.com.vn` ⚠️ Not in zone NS records
		A	103.28.36.30^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
NS	`ns2009.nhanhoa.com.vn` ⚠️ Not in zone NS records
		A	64.176.84.220^{🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix}
			PTR	`ns1.zonedns.vn`
NS	`ns3.zonedns.vn` ⚠️ Not in parent delegation
		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}
SOA	`ns1.zonedns.vn`root@sourcecode.vn 2020-03-08 #7

`vn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2030962798

Subdomains

www.sourcecode.vn

Same first word

Similar names

DNS History

8 records (6 active, 2 former)

○NSns-hold.vnnic.vn2026-05-02 → 2026-05-18 · 5 obs

○ 2026-05-01 12:39:04
● 2026-05-02 20:46:42
● 2026-05-18 23:04:50
○ 2026-06-06 23:01:02
○ 2026-07-05 10:29:20

●NSns1.zonedns.vn2026-05-01 → 2026-07-05 · 6 obs

● 2026-05-01 10:14:56
● 2026-05-01 12:39:04
○ 2026-05-02 20:46:42
○ 2026-05-18 23:04:50
● 2026-06-06 23:01:02
● 2026-07-05 10:29:20

●NSns2.zonedns.vn2026-05-01 → 2026-07-05 · 6 obs

● 2026-05-01 10:14:56
● 2026-05-01 12:39:04
○ 2026-05-02 20:46:42
○ 2026-05-18 23:04:50
● 2026-06-06 23:01:02
● 2026-07-05 10:29:20

●NSns2008.nhanhoa.com.vn2026-05-01 → 2026-07-05 · 6 obs

● 2026-05-01 10:14:56
● 2026-05-01 12:39:04
○ 2026-05-02 20:46:42
○ 2026-05-18 23:04:50
● 2026-06-06 23:01:02
● 2026-07-05 10:29:20

●NSns2009.nhanhoa.com.vn2026-05-01 → 2026-07-05 · 6 obs

● 2026-05-01 10:14:56
● 2026-05-01 12:39:04
○ 2026-05-02 20:46:42
○ 2026-05-18 23:04:50
● 2026-06-06 23:01:02
● 2026-07-05 10:29:20

●NSns3.zonedns.vn2026-05-01 → 2026-07-05 · 6 obs

● 2026-05-01 10:14:56
● 2026-05-01 12:39:04
○ 2026-05-02 20:46:42
○ 2026-05-18 23:04:50
● 2026-06-06 23:01:02
● 2026-07-05 10:29:20

●A112.213.91.492026-05-01 → 2026-07-05 · 6 obs

● 2026-05-01 10:14:56
● 2026-05-01 12:39:04
○ 2026-05-02 20:46:42
○ 2026-05-18 23:04:50
● 2026-06-06 23:01:02
● 2026-07-05 10:29:20

○A117.122.125.1072026-05-02 → 2026-05-18 · 5 obs

○ 2026-05-01 12:39:04
● 2026-05-02 20:46:42
● 2026-05-18 23:04:50
○ 2026-06-06 23:01:02
○ 2026-07-05 10:29:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
sourcecode.vn	ns2009.nhanhoa.com.vn, ns2008.nhanhoa.com.vn	-

✅ Authoritative Response

Server:103.28.36.30

NS records: ns2009.nhanhoa.com.vn, ns2008.nhanhoa.com.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sourcecode.vn (unsigned zone)

⏱️ Timing

Total: 1908ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.213.91.49`
NS	3	`ns2.zonedns.vn, ns1.zonedns.vn...`
SOA	1	`ns1.zonedns.vn root.sourcecode.vn`

Analysis

Hierarchy

sourcecode.vn is a parent domain of www.sourcecode.vn.

IP Addresses

sourcecode.vn resolves to one IP address: 112.213.91.49.

gdhp.edu.vn, als.edu.vn, www.sourcecode.vn and two other host names share IP numbers with sourcecode.vn.

Name Servers

sourcecode.vn has five name servers, which are ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and two others.

sourcecode.vn shares at least some of its name servers with other domains, including imaxsaigon.com.vn, kensch.com.vn, hyundai-hadong.vn and two others.

It is common to find these name servers alongside the name servers ns4.zonedns.vn, ns2008.nhanhoa.com.vn, ns2009.nhanhoa.com.vn and two others.

Hostnames that resolve to two IP addresses:

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

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

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

Hosts with just one IP address:

ns2008.nhanhoa.com.vn points to 103.28.36.30.

ns2009.nhanhoa.com.vn points to 64.176.84.220.

ns1.zonedns.vn and ns2.zonedns.vn are host names that each point to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 IP addresses.

ns1.zonedns.vn and ns2009.nhanhoa.com.vn are host names that each point to 64.176.84.220 IP addresses.

ns3.zonedns.vn and ns2008.nhanhoa.com.vn are host names that each point to 103.28.36.30 IP addresses.