`ddzw.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:d23d^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:4b15^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.75.21^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.210.61^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ada.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c036^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ada.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2036^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ada.ns.cloudflare.com`
		A	108.162.192.54^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	172.64.32.54^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	173.245.58.54^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
NS	`tosana.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c2b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tosana.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c32b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tosana.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:232b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tosana.ns.cloudflare.com`
		A	108.162.195.43^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tosana.ns.cloudflare.com`
		A	162.159.44.43^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tosana.ns.cloudflare.com`
		A	172.64.35.43^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tosana.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.75.21, 172.67.210.61
		IPv6 hints	2606:4700:3030::ac43:d23d, 2606:4700:3032::6815:4b15
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=5, name=cloudflare-ech.com
SOA	`ada.ns.cloudflare.com`dns@cloudflare.com serial=2410622008

`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 2035-10-07 #76

rank #770791 globally
rank #12849 in the tld
WOT: SAFE (61/100)

Subdomains

18.ddzw.cn

Same first word

ddzw.net

ddzw.cn

ddzw.io

ddzw.com

ddzw.info

Similar names

ddwz.com.cn

wddz.com

dzdw.vip

wddz.com.cn

dwdz.net

dwzd.com

wzdd.com

zdwd.com

wzdd.cn

ddwz.cn

ddwz.net

dwzd.cc

wddz.de

dwdz.de

dwdz.com

dwdz.cn

ddwz.com

DNS History

23 records (6 active, 17 former)

●NSada.ns.cloudflare.com2026-06-23 → 2026-07-28 · 3 obs

○ 2017-01-16 03:46:00
● 2026-06-23 00:29:46
● 2026-07-28 08:41:18

○NSdns10.hichina.com2015-10-31 → 2016-05-02 · 4 obs

● 2015-10-31 10:29:04
● 2016-05-02 05:28:02
○ 2017-01-16 03:46:00
○ 2026-07-28 08:41:18

○NSdns9.hichina.com2015-10-31 → 2016-05-02 · 4 obs

● 2015-10-31 10:29:04
● 2016-05-02 05:28:02
○ 2017-01-16 03:46:00
○ 2026-07-28 08:41:18

○NSns1.alidns.com2017-01-16 → 2017-01-16 · 4 obs

○ 2016-05-02 05:28:02
● 2017-01-16 03:46:00
○ 2026-06-23 00:29:46
○ 2026-07-28 08:41:18

○NSns2.alidns.com2017-01-16 → 2017-01-16 · 4 obs

○ 2016-05-02 05:28:02
● 2017-01-16 03:46:00
○ 2026-06-23 00:29:46
○ 2026-07-28 08:41:18

●NStosana.ns.cloudflare.com2026-06-23 → 2026-07-28 · 3 obs

○ 2017-01-16 03:46:00
● 2026-06-23 00:29:46
● 2026-07-28 08:41:18

●A104.21.75.212026-06-23 → 2026-07-28 · 5 obs

○ 2017-01-16 03:46:00
● 2026-06-23 00:29:46
○ 2026-07-05 08:20:40
● 2026-07-27 02:31:18
● 2026-07-28 08:41:18

●A172.67.210.612026-06-23 → 2026-07-28 · 5 obs

○ 2017-01-16 03:46:00
● 2026-06-23 00:29:46
○ 2026-07-05 08:20:40
● 2026-07-27 02:31:18
● 2026-07-28 08:41:18

○A188.114.96.02026-07-05 → 2026-07-05 · 4 obs

○ 2026-06-25 17:59:26
● 2026-07-05 08:20:40
○ 2026-07-27 02:31:18
○ 2026-07-28 08:41:18

○A188.114.97.02026-07-05 → 2026-07-05 · 4 obs

○ 2026-06-25 17:59:26
● 2026-07-05 08:20:40
○ 2026-07-27 02:31:18
○ 2026-07-28 08:41:18

○A2606:4700:3030::6815:4b152026-06-23 → 2026-06-23 · 4 obs

○ 2017-01-16 03:46:00
● 2026-06-23 00:29:46
○ 2026-06-25 17:59:26
○ 2026-07-28 08:41:18

●A2606:4700:3030::ac43:d23d2026-06-25 → 2026-07-28 · 5 obs

○ 2026-06-23 00:29:46
● 2026-06-25 17:59:26
○ 2026-07-05 08:20:40
● 2026-07-27 02:31:18
● 2026-07-28 08:41:18

●A2606:4700:3032::6815:4b152026-06-25 → 2026-07-28 · 5 obs

○ 2026-06-23 00:29:46
● 2026-06-25 17:59:26
○ 2026-07-05 08:20:40
● 2026-07-27 02:31:18
● 2026-07-28 08:41:18

○A2606:4700:3036::ac43:d23d2026-06-23 → 2026-06-23 · 4 obs

○ 2017-01-16 03:46:00
● 2026-06-23 00:29:46
○ 2026-06-25 17:59:26
○ 2026-07-28 08:41:18

○A2a06:98c1:3120::2026-07-05 → 2026-07-05 · 4 obs

○ 2026-06-25 17:59:26
● 2026-07-05 08:20:40
○ 2026-07-27 02:31:18
○ 2026-07-28 08:41:18

○A2a06:98c1:3121::2026-07-05 → 2026-07-05 · 4 obs

○ 2026-06-25 17:59:26
● 2026-07-05 08:20:40
○ 2026-07-27 02:31:18
○ 2026-07-28 08:41:18

○A52.69.166.2312017-01-16 → 2017-01-16 · 4 obs

○ 2016-05-02 05:28:02
● 2017-01-16 03:46:00
○ 2026-06-23 00:29:46
○ 2026-07-28 08:41:18

○A54.183.180.822015-06-15 → 2015-10-31 · 4 obs

● 2015-06-15 19:14:56
● 2015-10-31 10:29:04
○ 2016-02-08 00:31:16
○ 2026-07-28 08:41:18

○A67.229.168.422016-05-02 → 2016-05-02 · 4 obs

○ 2016-02-08 00:31:16
● 2016-05-02 05:28:02
○ 2017-01-16 03:46:00
○ 2026-07-28 08:41:18

○A67.229.168.432016-05-02 → 2016-05-02 · 4 obs

○ 2016-02-08 00:31:16
● 2016-05-02 05:28:02
○ 2017-01-16 03:46:00
○ 2026-07-28 08:41:18

○A67.43.147.272016-02-08 → 2016-02-08 · 4 obs

○ 2015-10-31 10:29:04
● 2016-02-08 00:31:16
○ 2016-05-02 05:28:02
○ 2026-07-28 08:41:18

○A67.43.147.282016-02-08 → 2016-02-08 · 4 obs

○ 2015-10-31 10:29:04
● 2016-02-08 00:31:16
○ 2016-05-02 05:28:02
○ 2026-07-28 08:41:18

○CNAME6.dragonparking.com2015-10-31 → 2017-01-16 · 4 obs

● 2015-10-31 10:29:04
● 2017-01-16 03:46:00
○ 2026-06-23 00:29:46
○ 2026-07-28 08:41:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	d.dns.cn, b.dns.cn, a.dns.cn, c.dns.cn...	-
ddzw.cn	ada.ns.cloudflare.com, tosana.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.43

NS records: ada.ns.cloudflare.com, tosana.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ddzw.cn (unsigned zone)

⏱️ Timing

Total: 970ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.210.61, 104.21.75.21`
AAAA	2	`2606:4700:3032::6815:4b15, 2606:4700:3030::ac43:d23d`
NS	2	`ada.ns.cloudflare.com, tosana.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ada.ns.cloudflare.com dns.cloudflare.com`

Analysis

Hierarchy

18.ddzw.cn is a subdomain of ddzw.cn.

IP Addresses

ddzw.cn points to the four IP addresses 104.21.75.21, 172.67.210.61, 2606:4700:3030::ac43:d23d and 2606:4700:3032::6815:4b15.

Two other host names, along with www.eductika.com.cdn.cloudflare.net, www.lerneprogrammieren.com and market-gr.ru, also share IP numbers with ddzw.cn.

Name Servers

Two name servers handle the delegation for ddzw.cn: ada.ns.cloudflare.com and tosana.ns.cloudflare.com.

ddzw.cn shares its NS records with other domains, for example free8.cn, vipriver28.net, taeplay.com and two others.

The name servers of ddzw.cn overlap at least partially with those of other domains — among them lerikel.com.br, batterybuyersofamerica.com, woridilbertyfinanclai.com and two more.

These name servers commonly appear alongside the name servers syeef.ns.cloudflare.com and penny.ns.cloudflare.com.

DNS names with 6 IP addresses:

ada.ns.cloudflare.com resolves to 108.162.192.54, 172.64.32.54 and 173.245.58.54 among others, with 3 other IP addresses in total.

tosana.ns.cloudflare.com resolves to 108.162.195.43, 162.159.44.43 and 172.64.35.43 among others, with 3 other IP addresses in total.

ddzw.cn - robtex.com

ddzw.cn

cn

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

`ddzw.cn`

`cn`