`mail.vntechserv.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:2b15^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:d7dd^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.21^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.215.221^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.21, 172.67.215.221
		IPv6 hints	2606:4700:3032::6815:2b15, 2606:4700:3033::ac43:d7dd
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=183, name=cloudflare-ech.com

`vntechserv.com`

	DNSSEC	⚠️ Not signed
	A	116.118.45.209^{🇻🇳 WEBICO-AS-VN116.118.45.0/24 SPT-VN WEBICO-VN Customer of SPT}
	NS	`kyrie.ns.cloudflare.com` ⭐
	NS	`lorna.ns.cloudflare.com`
	MX	`pro56.emailserver.vn` ⭐
	TXT	`v=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all`
	SOA	`kyrie.ns.cloudflare.com`dns@cloudflare.com serial=2402935035

Previously MX for

vntechserv.com

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DNS History

5 records (4 active, 1 former)

●A104.21.43.212026-05-11 → 2026-05-11 · 3 obs

○ 2018-05-18 00:10:48
● 2026-05-11 21:52:08
● 2026-05-11 21:52:12

○A112.78.5.1542018-05-18 → 2018-05-18 · 3 obs

● 2018-05-18 00:10:48
○ 2026-05-11 21:52:08
○ 2026-05-11 21:52:12

●A172.67.215.2212026-05-11 → 2026-05-11 · 3 obs

○ 2018-05-18 00:10:48
● 2026-05-11 21:52:08
● 2026-05-11 21:52:12

●A2606:4700:3032::6815:2b152026-05-11 → 2026-05-11 · 3 obs

○ 2018-05-18 00:10:48
● 2026-05-11 21:52:08
● 2026-05-11 21:52:12

●A2606:4700:3033::ac43:d7dd2026-05-11 → 2026-05-11 · 3 obs

○ 2018-05-18 00:10:48
● 2026-05-11 21:52:08
● 2026-05-11 21:52:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
vntechserv.com	lorna.ns.cloudflare.com, kyrie.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.38

NS records: lorna.ns.cloudflare.com, kyrie.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vntechserv.com (unsigned zone)

⏱️ Timing

Total: 86ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.43.21, 172.67.215.221`
AAAA	2	`2606:4700:3032::6815:2b15, 2606:4700:3033::ac43:d7dd`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (lorna.ns.cloudflare.com, lorna.ns.cloudflare.com, lorna.ns.cloudflare.com...)

Analysis

IP Addresses

mail.vntechserv.com maps to four IP numbers: 2606:4700:3032::6815:2b15, 2606:4700:3033::ac43:d7dd, 104.21.43.21 and 172.67.215.221.

Other host names such as ciao.lt, okkarlif.is, bettra-gunceldir.vip, prodentdentallab.com and apn.how share IPs with mail.vntechserv.com.

mail.vntechserv.com - robtex.com