`dcum.cn`

DNSSEC	⚠️ Not signed
A	156.244.92.234^{🇺🇸 HKIDC-AS-AP156.244.64.0/18 Shenzhen Jizhan Technology Co., Ltd.}
NS	`ns1.julydns.com` ⭐ ⚠️ Not in parent delegation
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`ns1.julydns.com`master@jmdns.com serial=1764168816

`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=2034665702

Previously NS for

dcum.cn

Same first word

dcum.cn

dcum.dk

Similar names

ucmd.cn

udmc.biz

dcmu.com

dmcu.org

mudc.com

cmud.com

dumc.or.kr

cmdu.com

mcdu.ru

mduc.com

dumc.de

cmud.org

umcd.org

umdc.co

cmud.cn

dumc.lt

cmud.com.cn

dmuc.cn

umdc.it

mcdu.com

cudm.cn

ucmd.ru

dcmu.net

cdum.ru

mudc.at

umdc.es

cdmu.cn

dmcu.dk

dumc.my

dmuc.de

cmdu.info

dmcu.com

mdcu.de

umdc.eu

dmuc.net

mcud.ru

mudc.shop

mdcu.co.uk

mucd.net

ucdm.com

ucdm.org

cdum.cn

cmud.cz

umdc.com

udcm.ru

cudm.com

cmdu.cz

mcud.gov.mn

cumd.cn

mudc.de

dumc.org

ucdm.info

cmdu.de

mdcu.com

mcdu.net

dcmu.org

ucmd.com

umcd.de

ducm.com

udmc.de

umdc.com.au

cdum.com

dumc.net

mdcu.org

cdmu.net

mcud.co.jp

dumc.co.kr

mucd.org.mx

ducm.de

dmuc.com

mucd.com

dumc.com

ucdm.es

mudc.ru

umdc.ua

mudc.cn

cdmu.com

umdc.net.au

mduc.ru

mcdu.cn

dumc.com.my

cumd.de

mcdu.org

umdc.org

dumc.cn

cumd.com

dumc.co.in

dmcu.de

ucmd.org

mcud.com

mudc.org.au

ucdm.mx

ducm.ru

mduc.org

udmc.cn

dmcu.net

udmc.in

umdc.de

udmc.it

umdc.net

DNS History

9 records (5 active, 4 former)

○NSdcum.cn2015-04-03 → 2015-04-03 · 3 obs

● 2015-04-03 17:40:26
○ 2015-09-21 08:54:28
○ 2026-04-13 09:33:34

○NSdns10.hichina.com2017-03-20 → 2017-03-20 · 4 obs

○ 2015-09-21 08:54:28
● 2017-03-20 12:50:36
○ 2026-04-06 12:11:28
○ 2026-04-13 09:33:34

○NSdns9.hichina.com2017-03-20 → 2017-03-20 · 4 obs

○ 2015-09-21 08:54:28
● 2017-03-20 12:50:36
○ 2026-04-06 12:11:28
○ 2026-04-13 09:33:34

●NSns1.judns.com2026-04-06 → 2026-04-13 · 3 obs

○ 2017-03-20 12:50:36
● 2026-04-06 12:11:28
● 2026-04-13 09:33:34

●NSns1.julydns.com2026-04-06 → 2026-04-13 · 3 obs

○ 2017-03-20 12:50:36
● 2026-04-06 12:11:28
● 2026-04-13 09:33:34

●NSns2.judns.com2026-04-06 → 2026-04-13 · 3 obs

○ 2017-03-20 12:50:36
● 2026-04-06 12:11:28
● 2026-04-13 09:33:34

●NSns2.julydns.com2026-04-06 → 2026-04-13 · 3 obs

○ 2017-03-20 12:50:36
● 2026-04-06 12:11:28
● 2026-04-13 09:33:34

●A156.244.92.2342026-04-06 → 2026-04-13 · 3 obs

○ 2015-09-21 08:54:28
● 2026-04-06 12:11:28
● 2026-04-13 09:33:34

○A98.126.73.2182015-04-03 → 2015-04-03 · 3 obs

● 2015-04-03 17:40:26
○ 2015-09-21 08:54:28
○ 2026-04-13 09:33:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
dcum.cn	ns1.judns.com, ns2.judns.com	-

✅ Authoritative Response

Server:162.159.27.251

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dcum.cn (unsigned zone)

⏱️ Timing

Total: 1570ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`156.244.92.234`
NS	2	`ns1.julydns.com, ns2.julydns.com`
SOA	1	`ns1.julydns.com master.jmdns.com`

Analysis

IP Addresses

dcum.cn points to a single IP number: 156.244.92.234.

Name Servers

dcum.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

dcum.cn shares name servers with other domains at least partially, for instance xu-ji.com, momentsalbum.com, epply.cn, drfmt.cn and ysszz.com.