`rrzd.cn`

	CNAME	`overdue.aliyun.com`
	DNSSEC	⚠️ Not signed
	A	170.33.12.185^{🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}

`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=2034708359

Previously NS for

rrzd.cn

Same first word

rrzd.ru

rrzd.cn

Similar names

rdrz.de

drzr.com.cn

rzrd.xyz

rzrd.de

rzrd.gov.cn

drrz.com

zrrd.com

DNS History

5 records (3 active, 2 former)

●NSdns15.hichina.com2026-04-09 → 2026-04-24 · 3 obs

○ 2016-01-21 16:52:34
● 2026-04-09 21:26:58
● 2026-04-24 21:36:24

●NSdns16.hichina.com2026-04-09 → 2026-04-24 · 3 obs

○ 2016-01-21 16:52:34
● 2026-04-09 21:26:58
● 2026-04-24 21:36:24

○NSrrzd.cn2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 20:09:16
○ 2016-01-21 16:52:34
○ 2026-04-24 21:36:24

○A174.139.207.1782015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 20:09:16
○ 2016-01-21 16:52:34
○ 2026-04-24 21:36:24

●CNAMEoverdue.aliyun.com2026-04-09 → 2026-04-24 · 2 obs

● 2026-04-09 21:26:58
● 2026-04-24 21:36:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn...	-
rrzd.cn	dns15.hichina.com, dns16.hichina.com	-

✅ Authoritative Response

Server:39.96.153.42

NS records: dns15.hichina.com, dns16.hichina.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn

⏱️ Timing

Total: 3481ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns16.hichina.com, dns15.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns15.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

rrzd.cn points to IP number 170.33.12.185.

For instance, other host names jhlg.cn, bcfy.cn, wmml.cn, chadeng.cn and tyrol.cn share IP numbers with rrzd.cn.

rrzd.cn - robtex.com

rrzd.cn

cn