`zdyc.cn`

DNSSEC	⚠️ Not signed
NS	`dns11.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::19^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.122^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns12.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::20^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.121^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2035179595

Same first word

zdyc.net

zdyc.cn

Similar names

zdcy.org

czyd.com

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yzdc.com

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dczy.com.cn

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ydzc.net

czyd.com.cn

dzyc.net

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yzdc.com.cn

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zydc.cn

czyd.org

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cdzy.net

cydz.workers.dev

zdcy.com

zydc.net

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cyzd.de

cdzy.cn

dczy.net

DNS History

14 records (2 active, 12 former)

●NSdns11.hichina.com2026-05-21 → 2026-08-14 · 3 obs

○ 2016-11-08 05:38:58
● 2026-05-21 11:51:16
● 2026-08-14 10:50:04

●NSdns12.hichina.com2026-05-21 → 2026-08-14 · 3 obs

○ 2016-11-08 05:38:58
● 2026-05-21 11:51:16
● 2026-08-14 10:50:04

○NSexpirens3.hichina.com2016-03-22 → 2016-03-22 · 4 obs

○ 2015-12-22 04:35:02
● 2016-03-22 06:21:22
○ 2016-11-08 05:38:58
○ 2026-08-14 10:50:04

○NSexpirens4.hichina.com2016-03-22 → 2016-03-22 · 4 obs

○ 2015-12-22 04:35:02
● 2016-03-22 06:21:22
○ 2016-11-08 05:38:58
○ 2026-08-14 10:50:04

○NSf1g1ns1.dnspod.net2015-05-31 → 2015-12-22 · 4 obs

● 2015-05-31 00:30:54
● 2015-12-22 04:35:02
○ 2016-03-22 06:21:22
○ 2026-08-14 10:50:04

○NSf1g1ns2.dnspod.net2015-05-31 → 2015-12-22 · 4 obs

● 2015-05-31 00:30:54
● 2015-12-22 04:35:02
○ 2016-03-22 06:21:22
○ 2026-08-14 10:50:04

○NSns1.alidns.com2016-11-08 → 2016-11-08 · 4 obs

○ 2016-03-22 06:21:22
● 2016-11-08 05:38:58
○ 2026-05-21 11:51:16
○ 2026-08-14 10:50:04

○NSns2.alidns.com2016-11-08 → 2016-11-08 · 4 obs

○ 2016-03-22 06:21:22
● 2016-11-08 05:38:58
○ 2026-05-21 11:51:16
○ 2026-08-14 10:50:04

○MXmail.zdyc.cn2015-05-31 → 2015-12-22 · 4 obs

● 2015-05-31 00:30:54
● 2015-12-22 04:35:02
○ 2016-03-22 06:21:22
○ 2026-08-14 10:50:04

○A180.76.157.1562016-11-08 → 2016-11-08 · 4 obs

○ 2016-03-22 06:21:22
● 2016-11-08 05:38:58
○ 2026-05-21 11:51:16
○ 2026-08-14 10:50:04

○A202.173.255.252015-05-31 → 2015-12-22 · 4 obs

● 2015-05-31 00:30:54
● 2015-12-22 04:35:02
○ 2016-03-22 06:21:22
○ 2026-08-14 10:50:04

○A42.120.158.782016-03-22 → 2016-03-22 · 4 obs

○ 2015-12-22 04:35:02
● 2016-03-22 06:21:22
○ 2016-11-08 05:38:58
○ 2026-08-14 10:50:04

○A8.152.208.1982026-05-21 → 2026-05-21 · 4 obs

○ 2016-11-08 05:38:58
● 2026-05-21 11:51:16
○ 2026-06-27 16:30:32
○ 2026-08-14 10:50:04

○CNAMEhbcc13.baidu.114my.com.cn2016-11-08 → 2016-11-08 · 3 obs

● 2016-11-08 05:38:58
○ 2026-05-21 11:51:16
○ 2026-08-14 10:50:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
zdyc.cn	dns11.hichina.com, dns12.hichina.com	-

✅ Authoritative Response

Server:39.96.153.52

NS records: dns11.hichina.com, dns12.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zdyc.cn (unsigned zone)

⏱️ Timing

Total: 1801ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`8.152.208.198`
NS	2	`dns11.hichina.com, dns12.hichina.com`
SOA	1	`dns11.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

DNS delegation for zdyc.cn points to two name servers: dns11.hichina.com and dns12.hichina.com.

The name server configuration of zdyc.cn is shared with other domains, for instance wenmen.cn, eyoule.com, dooref.cn and two others.

zdyc.cn has at least partial name server overlap with other domains, such as plhot.com, nanlife.com, i8xiaoshi.com and two others.

It is common to see these name servers used together with name servers expirens3.hichina.com and expirens4.hichina.com.

Hosts with 9 IP addresses each:

dns11.hichina.com has IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, plus 6 other.

dns12.hichina.com has IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, plus 6 other.

zdyc.cn - robtex.com

zdyc.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Name Servers

`zdyc.cn`

`cn`