`mail.coolfor.com.cn`

	DNSSEC	⚠️ Not signed
	A	191.214.86.230^{🇧🇷 UNSPECIFIED160.0.0.0/3}

`coolfor.com.cn`

	DNSSEC	⚠️ Not signed
	A	191.214.86.230^{🇧🇷 UNSPECIFIED160.0.0.0/3}
	NS	`dm1.longmingdns.com` ⭐
	NS	`dm2.longmingdns.com`
	SOA	`dm1.longmingdns.com`dnsadmin@longmingdns.com serial=1774449240

Previously MX for

coolfor.com.cn

Same first word

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DNS History

2 records (1 active, 1 former)

○A154.95.207.2332026-02-24 → 2026-03-11 · 4 obs

● 2026-02-24 22:35:14
● 2026-03-11 12:28:40
○ 2026-03-26 16:47:42
○ 2026-05-10 03:04:40

●A191.214.86.2302026-03-26 → 2026-05-10 · 3 obs

○ 2026-03-11 12:28:40
● 2026-03-26 16:47:42
● 2026-05-10 03:04:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
coolfor.com.cn	dm1.longmingdns.com, dm2.longmingdns.com	-

✅ Authoritative Response

Server:218.98.111.163

NS records: dm1.longmingdns.com, dm2.longmingdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coolfor.com.cn (unsigned zone)

⏱️ Timing

Total: 1850ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`191.214.86.230`

Analysis

IP Addresses

mail.coolfor.com.cn points to a single IP number: 191.214.86.230.

Other host names such as coolfor.com.cn, (0x73686974)22.cn and netgamer.cn share IP numbers with mail.coolfor.com.cn.

mail.coolfor.com.cn - robtex.com