`mail2.threeduck.com`

	CNAME	`overdue.aliyun.com`
	DNSSEC	⚠️ Not signed
	A	170.33.12.185^{🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}

`threeduck.com`

	CNAME	`overdue.aliyun.com`
	DNSSEC	⚠️ Not signed
	A	170.33.12.185^{🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}

Previously MX for

threeduck.com

Same first word

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mail2.name

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DNS History

3 records (1 active, 2 former)

○A143.95.250.202015-11-30 → 2016-07-01 · 4 obs

○ 2015-08-10 15:17:14
● 2015-11-30 04:54:40
● 2016-07-01 05:50:44
○ 2026-04-12 17:55:08

○A23.91.117.22015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 15:17:14
○ 2015-11-30 04:54:40
○ 2026-04-12 17:55:08

●CNAMEoverdue.aliyun.com2026-04-12 → 2026-04-12 · 1 obs

● 2026-04-12 17:55:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
threeduck.com	dns9.hichina.com, dns10.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for threeduck.com (unsigned zone)

⏱️ Timing

Total: 497ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`overdue.aliyun.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)

Analysis

IP Addresses

mail2.threeduck.com points to a single IP number: 170.33.12.185.

other host names for instance jqex.cn, zhimapay.com, gdnba.cn, samhua.cn and mldm.cn share IP numbers with mail2.threeduck.com.

mail2.threeduck.com - robtex.com