`mail.503zy.com`

	DNSSEC	⚠️ Not signed
	A	210.51.169.13^{🇨🇳 AS-4812-CNC-HP210.51.0.0/16 CNC Group CncNet}

`503zy.com`

	DNSSEC	⚠️ Not signed
	A	123.59.154.172^{🇨🇳 CHINA169-BJ123.59.128.0/19 CloudVsp.Inc}
	NS	`ce1.xincache.com` ⭐
	NS	`ce2.xincache.com`
	MX	`mail.503zy.com` ⭐
	SOA	`ce1.xincache.com`enterprise1dnsadmin@dnspod.com serial=1702031372

MX for

503zy.com

Same first word

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DNS History

1 record (1 active, 0 former)

●A210.51.169.132015-07-19 → 2026-04-12 · 2 obs

● 2015-07-19 00:20:54
● 2026-04-12 19:06:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
503zy.com	ce1.xincache.com, ce2.xincache.com	9 records

✅ Authoritative Response

Server:1.12.0.4

NS records: ce1.xincache.com, ce2.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 503zy.com (unsigned zone)

⏱️ Timing

Total: 85ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.51.169.13`

📌 Glue Records Collected

Total: 9

Out-of-bailiwick: 9 (ce1.xincache.com, ce1.xincache.com, ce1.xincache.com...)

Analysis

Mail Server Role

mail.503zy.com serves as the mail server for 503zy.com.

IP Addresses

mail.503zy.com points to a single IP: 210.51.169.13.

Other host names, for instance mail.happygugu.com, mail.lnwhyy.com, mail.xn--pbt15vhjmhrj.com, mail.china-ippublication.net and mail.dllonghai.com share IP numbers with mail.503zy.com.

mail.503zy.com - robtex.com

mail.503zy.com

503zy.com