`bca.vn`

DNSSEC	⚠️ Not signed
A	45.252.251.52^{🇻🇳 AZDIGI-AS-VN45.252.248.0/22 AZDIGI-VN}
NS	`ns-master.inet.vn` ⭐
		A	202.92.4.8^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
NS	`ns1.inet.vn`
		A	2001:df7:ce00:1::7^{🇻🇳 VNPT-AS-VN2001:df7:ce00::/48 INETSOFT-VN Inet software one member company limited}
		A	202.92.4.25^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
NS	`ns2.inet.vn`
		A	2401:5f80:2001:4::30^{🇻🇳 VTDC-AS-VN2401:5f80:2000::/36 VTDC-VN}
		A	210.211.99.38^{🇻🇳 VTDC-AS-VN210.211.99.0/24 Proxy-registered route object}
NS	`ns3.inet.vn` ⚠️ Not in zone NS records
		A	2401:5f80:4001:4::14^{🇻🇳 VTDC-AS-VN2401:5f80:4000::/36 VTDC-VN}
		A	203.113.174.42^{🇻🇳 VTDC-AS-VN203.113.174.0/23 VIETTEL-VN}
MX	`bca-vn.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc09::^{🇸🇬 Microsoft2a01:111:f000::/36}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::8^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tydpr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::4^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os8pr02cu00104.inbound.protection.outlook.com`
		A	52.101.124.117^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tydpr03cu00105.inbound.protection.outlook.com`
		A	52.101.137.0^{🇸🇬 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	52.101.157.80^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os8pr02cu00100.inbound.protection.outlook.com`
TXT	`v=spf1 mx include:spf.protection.outlook.com include:emailserver.vn -all`
TXT	`amazonses:mmQft6lMTVv3DGFX86RScu3vGK7ToKCTjlGwketkJX0=`
TXT	`MS=ms75331395`
SOA	`ns-master.inet.vn`postmaster@inet.vn 2015-07-28 #0

`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=2030740422

Same first word

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bca.org

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DNS History

6 records (6 active, 0 former)

●NSns-master.inet.vn2026-05-01 → 2026-05-07 · 2 obs

● 2026-05-01 10:51:20
● 2026-05-07 01:15:36

●NSns1.inet.vn2026-05-01 → 2026-05-07 · 2 obs

● 2026-05-01 10:51:20
● 2026-05-07 01:15:36

●NSns2.inet.vn2026-05-01 → 2026-05-07 · 2 obs

● 2026-05-01 10:51:20
● 2026-05-07 01:15:36

●NSns3.inet.vn2026-05-01 → 2026-05-07 · 2 obs

● 2026-05-01 10:51:20
● 2026-05-07 01:15:36

●MXbca-vn.mail.protection.outlook.com2026-05-01 → 2026-05-07 · 2 obs

● 2026-05-01 10:51:20
● 2026-05-07 01:15:36

●A45.252.251.522026-05-01 → 2026-05-07 · 2 obs

● 2026-05-01 10:51:20
● 2026-05-07 01:15:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
bca.vn	ns2.inet.vn, ns1.inet.vn, ns3.inet.vn	3 records

✅ Authoritative Response

Server:203.113.174.10

NS records: ns2.inet.vn, ns1.inet.vn, ns3.inet.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bca.vn (unsigned zone)

⏱️ Timing

Total: 3942ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.252.251.52`
NS	2	`ns2.inet.vn, ns1.inet.vn`
MX	1	`bca-vn.mail.protection.outlook.com (pri:`
TXT	3	`MS=ms75331395, v=spf1 mx include:spf.protection.outlook...`
SOA	1	`ns-master.inet.vn postmaster.inet.vn`