`cdtzy.cn`

DNSSEC	⚠️ Not signed
NS	`ns2.ddoss-waf.com` ⭐ ⚠️ Not in parent delegation
		A	121.37.230.116^{🇨🇳 HWCSNET121.37.192.0/18 Huawei Clouds Guangzhou Region}
NS	`ns1.ddoss-waf.com` ⚠️ Not in parent delegation
		A	47.109.31.80^{🇨🇳 Alibaba-Cloud47.109.0.0/16}
NS	`ns1.tcdns31.com` ⚠️ Not in zone NS records
		A	47.109.31.80^{🇨🇳 Alibaba-Cloud47.109.0.0/16}
		A	121.37.230.116^{🇨🇳 HWCSNET121.37.192.0/18 Huawei Clouds Guangzhou Region}
NS	`ns2.tcdns31.com` ⚠️ Not in zone NS records
		A	47.109.31.80^{🇨🇳 Alibaba-Cloud47.109.0.0/16}
		A	121.37.230.116^{🇨🇳 HWCSNET121.37.192.0/18 Huawei Clouds Guangzhou Region}
SOA	`ns2.ddoss-waf.com`zeus@bb2.com serial=1773223023

`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`
	SOA	`a.dns.cn`root@cnnic.cn serial=2035086540

Same first word

cdtzy.com

cdtzy.cn

Similar names

czydt.net

ytdzc.com

ytdzc.cn

dctyz.com

dtycz.com

dzytc.com

dctzy.com

dyctz.com

cdtyz.com

czydt.com

zdytc.com

cdzyt.cn

ytzdc.com

dyztc.com

zyctd.com

ctyzd.com

zytcd.com

cdyzt.cn

cdzty.com

DNS History

12 records (4 active, 8 former)

●NSns1.ddoss-waf.com2026-07-18 → 2026-07-25 · 3 obs

○ 2018-08-19 07:11:08
● 2026-07-18 18:20:06
● 2026-07-25 06:04:44

○NSns1.myhostadmin.net2015-07-11 → 2018-08-19 · 4 obs

● 2015-07-11 02:01:06
● 2018-08-19 07:11:08
○ 2026-07-18 18:20:06
○ 2026-07-25 06:04:44

●NSns1.tcdns31.com2026-07-18 → 2026-07-25 · 3 obs

○ 2018-08-19 07:11:08
● 2026-07-18 18:20:06
● 2026-07-25 06:04:44

●NSns2.ddoss-waf.com2026-07-18 → 2026-07-25 · 3 obs

○ 2018-08-19 07:11:08
● 2026-07-18 18:20:06
● 2026-07-25 06:04:44

○NSns2.myhostadmin.net2015-07-11 → 2018-08-19 · 4 obs

● 2015-07-11 02:01:06
● 2018-08-19 07:11:08
○ 2026-07-18 18:20:06
○ 2026-07-25 06:04:44

●NSns2.tcdns31.com2026-07-18 → 2026-07-25 · 3 obs

○ 2018-08-19 07:11:08
● 2026-07-18 18:20:06
● 2026-07-25 06:04:44

○NSns3.myhostadmin.net2015-07-11 → 2018-08-19 · 4 obs

● 2015-07-11 02:01:06
● 2018-08-19 07:11:08
○ 2026-07-18 18:20:06
○ 2026-07-25 06:04:44

○NSns4.myhostadmin.net2015-07-11 → 2018-08-19 · 4 obs

● 2015-07-11 02:01:06
● 2018-08-19 07:11:08
○ 2026-07-18 18:20:06
○ 2026-07-25 06:04:44

○NSns5.myhostadmin.net2015-07-11 → 2018-08-19 · 4 obs

● 2015-07-11 02:01:06
● 2018-08-19 07:11:08
○ 2026-07-18 18:20:06
○ 2026-07-25 06:04:44

○NSns6.myhostadmin.net2015-07-11 → 2018-08-19 · 4 obs

● 2015-07-11 02:01:06
● 2018-08-19 07:11:08
○ 2026-07-18 18:20:06
○ 2026-07-25 06:04:44

○MXmail.cdtzy.cn2015-07-11 → 2017-01-17 · 4 obs

● 2015-07-11 02:01:06
● 2017-01-17 05:00:48
○ 2018-08-19 07:11:08
○ 2026-07-25 06:04:44

○CNAMEydsisa.gotoip2.com2018-08-19 → 2018-08-19 · 3 obs

● 2018-08-19 07:11:08
○ 2026-07-18 18:20:06
○ 2026-07-25 06:04:44

🔍 DNS Trace

Analysis

Name Servers

cdtzy.cn has four authoritative name servers: ns1.ddoss-waf.com, ns2.ddoss-waf.com, ns1.tcdns31.com and ns2.tcdns31.com.

The name servers of cdtzy.cn overlap at least partially with those of other domains — among them cfdns81.com, juneqin.cn, yuelaismartisland.com and two more.

These name servers commonly appear in delegations together with ns1.cfdns5.com, ns2.cfdns5.com, ns1.cfdns43.com and 7 other.

Host names with two IP numbers:

ns1.tcdns31.com resolves to 47.109.31.80 and 121.37.230.116.

ns2.tcdns31.com resolves to 47.109.31.80 and 121.37.230.116.

Host names pointing to a single IP address:

ns1.ddoss-waf.com resolves to 47.109.31.80.

ns2.ddoss-waf.com resolves to 121.37.230.116.

ns1.tcdns31.com, ns2.tcdns31.com and ns1.ddoss-waf.com are host names that all point to 47.109.31.80.

ns1.tcdns31.com, ns2.tcdns31.com and ns2.ddoss-waf.com are host names that all point to 121.37.230.116.