`mail.opensky.com.cn`

	DNSSEC	⚠️ Not signed
	A	223.26.56.104

`opensky.com.cn`

	DNSSEC	⚠️ Not signed
	NS	`ns1.ename.net` ⚠️ Not in zone NS records
	NS	`ns2.ename.net` ⚠️ Not in zone NS records

Same first word

mail.dyn-vpn.de

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mail.in.th

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DNS History

4 records (1 active, 3 former)

○A104.160.190.622026-07-17 → 2026-07-17 · 4 obs

○ 2026-07-16 00:36:12
● 2026-07-17 00:14:02
○ 2026-07-21 00:14:56
○ 2026-08-05 05:21:26

○A150.242.126.342017-06-14 → 2017-06-14 · 3 obs

● 2017-06-14 01:05:20
○ 2026-04-09 12:18:08
○ 2026-08-05 05:21:26

○A170.178.174.2492026-07-21 → 2026-07-21 · 4 obs

○ 2026-07-17 00:14:02
● 2026-07-21 00:14:56
○ 2026-07-26 00:12:32
○ 2026-08-05 05:21:26

●A223.26.56.1042026-04-09 → 2026-08-05 · 7 obs

○ 2017-06-14 01:05:20
● 2026-04-09 12:18:08
○ 2026-07-16 00:36:12
● 2026-07-26 00:12:32
○ 2026-07-29 08:10:40
● 2026-07-30 00:11:50
● 2026-08-05 05:21:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
opensky.com.cn	ns1.ename.net, ns2.ename.net	-

✅ Authoritative Response

Server:218.98.111.173

NS records: ns1.ename.net, ns2.ename.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1800ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`223.26.56.104`

Analysis

IP Addresses

mail.opensky.com.cn resolves to just one IP address, 223.26.56.104.

Two other host names, along with highsnobiety.cn, clozette.cn and azimo.cn, also share IP numbers with mail.opensky.com.cn.

mail.opensky.com.cn - robtex.com