`mail.sihuisoft.com`

	DNSSEC	⚠️ Not signed
	A	210.51.1.248^{🇨🇳 AS-4812-CNC-HP210.51.0.0/16 CNC Group CncNet}

`sihuisoft.com`

	DNSSEC	⚠️ Not signed
	A	139.196.84.212^{🇨🇳 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	`ns11.xincache.com` ⭐
	NS	`ns13.xincache.com`
	NS	`ns14.xincache.com`
	MX	`mxbiz1.qq.com` ⭐
	MX	`mxbiz2.qq.com`⁽¹⁰⁾
	SOA	`ns11.xincache.com`ns12@xincache.com serial=1756262214

Previously MX for

sihuisoft.com

Same first word

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mail.pe

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mail.group

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DNS History

1 record (1 active, 0 former)

●A210.51.1.2482015-08-22 → 2026-03-24 · 2 obs

● 2015-08-22 13:35:18
● 2026-03-24 08:17:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sihuisoft.com	ns13.xincache.com, ns14.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.4

NS records: ns13.xincache.com, ns14.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sihuisoft.com (unsigned zone)

⏱️ Timing

Total: 219ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.51.1.248`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns13.xincache.com, ns13.xincache.com, ns13.xincache.com...)

Analysis

IP Addresses

mail.sihuisoft.com points to a single IP number: 210.51.1.248.

Other host names, for instance mail.talk8899.com, mail.cficec.com, mail.sygj518.com and mail.hanyujia.com share IP numbers with mail.sihuisoft.com.

mail.sihuisoft.com - robtex.com