`mail.kaobiguo.com`

	DNSSEC	⚠️ Not signed
	A	222.191.251.26^{🇨🇳 CHINANET-BACKBONE222.184.0.0/13 for jiangsu province}

`kaobiguo.com`

	DNSSEC	⚠️ Not signed
	NS	`ns1.edong.com` ⭐
	NS	`ns.edong.com`
	MX	`mail.kaobiguo.com` ⭐
	SOA	`ns.edong.com`root@ns.edong.com serial=1071301053

MX for

kaobiguo.com

Same first word

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DNS History

2 records (1 active, 1 former)

○A222.191.251.192008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 17:44:36
○ 2015-07-07 10:21:38
○ 2026-07-24 03:33:38

●A222.191.251.262015-07-07 → 2026-07-24 · 3 obs

○ 2008-03-09 17:44:36
● 2015-07-07 10:21:38
● 2026-07-24 03:33:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
kaobiguo.com	ns.edong.com, ns1.edong.com	2 records

✅ Authoritative Response

Server:61.147.105.47

NS records: ns.edong.com, ns1.edong.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kaobiguo.com (unsigned zone)

⏱️ Timing

Total: 4480ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`222.191.251.26`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.edong.com, ns1.edong.com)

Analysis

Mail Server Role

The mail server mail.kaobiguo.com processes email for kaobiguo.com.

IP Addresses

mail.kaobiguo.com resolves to just one IP address, 222.191.251.26.

Other host names, among them ad-push.com and jchp.cn, have IP numbers in common with mail.kaobiguo.com.

mail.kaobiguo.com - robtex.com