`dtdm.doitheviet.vn`

	DNSSEC	⚠️ Not signed
	A	103.57.221.27^{🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN}

`doitheviet.vn`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:916b^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:417e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.65.126^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.145.107^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`meiling.ns.cloudflare.com` ⭐
NS	`sean.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.65.126, 172.67.145.107
		IPv6 hints	2606:4700:3030::ac43:916b, 2606:4700:3037::6815:417e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=56, name=cloudflare-ech.com
SOA	`meiling.ns.cloudflare.com`dns@cloudflare.com serial=2403481521

Same first word

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dtdm.spb.ru

dtdm.de

dtdm.nl

dtdm.info

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DNS History

1 record (1 active, 0 former)

●A103.57.221.272026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 14:42:38
● 2026-05-10 12:02:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...	-
doitheviet.vn	meiling.ns.cloudflare.com, sean.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.231

NS records: meiling.ns.cloudflare.com, sean.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doitheviet.vn (unsigned zone)

⏱️ Timing

Total: 2777ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.57.221.27`

Analysis

IP Addresses

dtdm.doitheviet.vn points to IP number 103.57.221.27.

For instance, other host names autodiscover.goodwine.com.vn, mail.openinnovation.vn, cpanel.viettrieu.edu.vn, webdisk.luomtien.info.vn and www.gamudalandvietnam.com.vn share IP numbers with dtdm.doitheviet.vn.

dtdm.doitheviet.vn - robtex.com