`mail.sinuotec.com`

	DNSSEC	⚠️ Not signed
	A	175.178.224.245^{🇨🇳 TENCENT-NET-AP175.178.192.0/18}

`sinuotec.com`

	DNSSEC	⚠️ Not signed
	NS	`dns7.4cun.com` ⭐
	NS	`dns.4cun.com` ⚠️ Not in zone NS records
	NS	`dns8.51dns.top` ⚠️ Not in zone NS records
	MX	`mail.sinuotec.com` ⭐
	SOA	`dns.4cun.com`admin@sinuotec.com serial=1773286932

MX for

sinuotec.com

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DNS History

1 record (1 active, 0 former)

●A175.178.224.2452026-03-22 → 2026-04-20 · 2 obs

● 2026-03-22 20:08:32
● 2026-04-20 11:07:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sinuotec.com	dns7.4cun.com, dns8.51dns.top	2 records

✅ Authoritative Response

Server:219.138.102.210

NS records: dns7.4cun.com, dns8.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sinuotec.com (unsigned zone)

⏱️ Timing

Total: 1218ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`175.178.224.245`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns7.4cun.com, dns7.4cun.com)

Analysis

Mail Server Role

mail.sinuotec.com functions as a mail server for sinuotec.com.

IP Addresses

mail.sinuotec.com points to IP number: 175.178.224.245.

Other host names, for instance mail.huaketec.com share IP numbers with mail.sinuotec.com.

mail.sinuotec.com - robtex.com