`mail.china-core.com`

DNSSEC	⚠️ Not signed
A	222.92.45.42^{🇨🇳 CHINANET-BACKBONE222.92.0.0/14 China Telecom Network}
		PTR	`mail.china-core.com`

`china-core.com`

	DNSSEC	⚠️ Not signed
	A	139.196.123.136^{🇨🇳 Alibaba-Cloud139.196.0.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
	NS	`dns1.hichina.com` ⭐
	NS	`dns2.hichina.com`
	MX	`mail.china-core.com` ⭐
	MX	`suzexchange.china-core.com` ⭐
	SOA	`dns1.hichina.com`hostmaster@hichina.com 2026-06-04 #13

WOT: UNKNOWN (60/100)

PTR for

42.45.92.222.in-addr.arpa

MX for

china-core.com

Same first word

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DNS History

1 record (1 active, 0 former)

●A222.92.45.422026-06-20 → 2026-07-20 · 2 obs

● 2026-06-20 17:21:30
● 2026-07-20 00:42:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net...	-
china-core.com	dns2.hichina.com, dns1.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.44

NS records: dns2.hichina.com, dns1.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for china-core.com (unsigned zone)

⏱️ Timing

Total: 3120ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`222.92.45.42`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns2.hichina.com, dns2.hichina.com, dns2.hichina.com...)

Analysis

Mail Server Role

mail.china-core.com serves as a mail server for china-core.com.

suzexchange.china-core.com and mail.china-core.com are commonly paired as mail servers.

IP Addresses

mail.china-core.com points to a single IP number: 222.92.45.42.

ftp.china-core.com is an example of another host name that shares IP numbers with mail.china-core.com.

mail.china-core.com - robtex.com