mail.kb-sync.com - dns.ninja

`mail.kb-sync.com`

DNSSEC	⚠️ Not signed
A	210.245.84.99^{🇻🇳 FPT-AS-AP210.245.80.0/21 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
		PTR	`92work.vn`
		PTR	`tvfn.vn`
		PTR	`mail.daggett-finance.com`
		PTR	`mail.huygiang.com`
		PTR	`mail.kb-sync.com`
		PTR	`mail.nhatminhphat.com`
		PTR	`mail.innocom.dev`
		PTR	`mail.meewmeew.info`
		PTR	`mail.huygiang.net`
		PTR	`reti.com.vn`
		PTR	`mail.duhochaiphong.vn`
		PTR	`mail.dulichsongxanh.vn`
		PTR	`vicat.edu.vn`
		PTR	`mail.xinance.vn`
		PTR	`mail.chv.com.vn`
		PTR	`mail.hafic.com.vn`
		PTR	`mail.fiat.edu.vn`
		PTR	`mail.hsaplus.edu.vn`
		PTR	`mail.lehuutrac.edu.vn`
		PTR	`mail.vicat.edu.vn`

`kb-sync.com`

	DNSSEC	⚠️ Not signed
	A	103.195.240.26^{🇻🇳 TOCDOSOVN-AS-VN103.195.240.0/22 TOCDOSO-VN}
	NS	`nsbak.dotvndns.com` ⭐
	NS	`ns1.dotvndns.vn`
	NS	`ns2.dotvndns.vn`
	NS	`ns3.dotvndns.vn`
	MX	`smtp.google.com` ⭐
	TXT	`google-site-verification=w04MbBhZb6wwz3UBHHAgq5awnUI5o1NpJdcpFLaL5is`
	TXT	`v=spf1 ip4:210.245.84.99 ip4:210.245.87.6 ip4:210.245.87.63 include:_spf.goog...`
	SOA	`nsbak.dotvndns.com`hostmaster@kb-sync.com 2026-06-24 #24

PTR for

99.84.245.210.in-addr.arpa

Same first word

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DNS History

1 record (1 active, 0 former)

●A210.245.84.992026-08-02 → 2026-08-02 · 2 obs

● 2026-08-02 02:31:40
● 2026-08-02 02:31:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net...	-
kb-sync.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn	2 records

✅ Authoritative Response

Server:112.213.89.22

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kb-sync.com (unsigned zone)

⏱️ Timing

Total: 1468ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.245.84.99`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

mail.kb-sync.com resolves to one IP address: 210.245.84.99.

mail.lehuutrac.edu.vn, huygiang.net, mail.duhochaiphong.vn and two other host names share IP numbers with mail.kb-sync.com.