`mail.biochemvn.com`

DNSSEC	⚠️ Not signed
A	112.78.15.81^{🇻🇳 ODS-AS-VN112.78.15.0/24 ODSJSC-VN}
		PTR	`(root)`

`biochemvn.com`

	DNSSEC	⚠️ Not signed
	A	112.213.89.38^{🇻🇳 SUPERDATA112.213.89.0/24 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}
	NS	`nsbak.dotvndns.com` ⭐
	NS	`ns1.dotvndns.vn`
	NS	`ns2.dotvndns.vn`
	MX	`mail.biochemvn.com` ⭐
	TXT	`v=spf1 a mx ip4:112.78.15.81 include:dn(0x736578)it.com ~all`
	SOA	`nsbak.dotvndns.com`hostmaster@biochemvn.com 2025-09-21 #10

MX for

biochemvn.com

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DNS History

2 records (1 active, 1 former)

●A112.78.15.812026-03-25 → 2026-05-12 · 3 obs

○ 2016-07-16 22:40:00
● 2026-03-25 11:29:42
● 2026-05-12 11:21:18

○A199.189.248.112015-07-21 → 2016-07-16 · 4 obs

● 2015-07-21 13:50:10
● 2016-07-16 22:40:00
○ 2026-03-25 11:29:42
○ 2026-05-12 11:21:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
biochemvn.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:222.255.121.247

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for biochemvn.com (unsigned zone)

⏱️ Timing

Total: 2186ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.78.15.81`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

Mail Server Role

mail.biochemvn.com functions as a mail server for biochemvn.com.

IP Addresses

mail.biochemvn.com points to IP number: 112.78.15.81.

Other host names such as mail.hecavn.com, baokhangvn.com, mail.biochem.vn, mail.murad.com.vn and mail.ngocphucweathertex.com share IPs with mail.biochemvn.com.

mail.biochemvn.com - robtex.com