tzcoder.cn - dns.ninja

`tzcoder.cn`

DNSSEC	⚠️ Not signed
A	47.99.244.31^{🇨🇳 Alibaba-Cloud47.98.0.0/15 Hangzhou Alibaba Advertising Co.,Ltd.}
NS	`vip1.alidns.com` ⭐
		A	2408:4009:500::1^{🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group}
		A	8.212.93.1^{🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	140.205.1.1^{🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	170.33.32.208^{🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.73.24^{🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.80.8^{🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
NS	`vip2.alidns.com`
		A	2408:4009:500::2^{🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group}
		A	8.212.93.2^{🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	140.205.1.2^{🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	170.33.32.209^{🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.73.25^{🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.80.9^{🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
TXT	`v=spf1 -all`
SOA	`vip1.alidns.com`hostmaster@hichina.com 2026-06-02 #16

`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 2035-03-10 #63

Subdomains

www.tzcoder.cn

Same first word

tzcoder.cn

Similar names

zerodtc.top

docterz.in

doczert.de

DNS History

5 records (3 active, 2 former)

○NSdns29.hichina.com2019-03-16 → 2026-05-07 · 4 obs

● 2019-03-16 15:09:48
● 2026-05-07 20:05:22
○ 2026-07-04 02:27:56
○ 2026-07-12 04:55:44

○NSdns30.hichina.com2019-03-16 → 2026-05-07 · 4 obs

● 2019-03-16 15:09:48
● 2026-05-07 20:05:22
○ 2026-07-04 02:27:56
○ 2026-07-12 04:55:44

●NSvip1.alidns.com2026-07-04 → 2026-07-12 · 3 obs

○ 2026-05-07 20:05:22
● 2026-07-04 02:27:56
● 2026-07-12 04:55:44

●NSvip2.alidns.com2026-07-04 → 2026-07-12 · 3 obs

○ 2026-05-07 20:05:22
● 2026-07-04 02:27:56
● 2026-07-12 04:55:44

●A47.99.244.312019-03-16 → 2026-07-12 · 2 obs

● 2019-03-16 15:09:48
● 2026-07-12 04:55:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
tzcoder.cn	vip1.alidns.com, vip2.alidns.com	-

✅ Authoritative Response

Server:140.205.1.1

NS records: vip1.alidns.com, vip2.alidns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tzcoder.cn (unsigned zone)

⏱️ Timing

Total: 3451ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.99.244.31`
NS	2	`vip2.alidns.com, vip1.alidns.com`
TXT	1	`v=spf1 -all`
SOA	1	`vip1.alidns.com hostmaster.hichina.com`

Analysis

Hierarchy

The domain www.tzcoder.cn falls under the parent tzcoder.cn.

IP Addresses

tzcoder.cn resolves to one IP address: 47.99.244.31.

Other host names, such as www.tzcoder.cn, share IP numbers with tzcoder.cn.

Name Servers

tzcoder.cn is delegated to two name servers: vip1.alidns.com and vip2.alidns.com.

tzcoder.cn uses the same name servers as several other domains — among them cnyun.cn, yuiwong.org, shineng.com and two more.

tzcoder.cn shares at least some of its name servers with other domains, for example lastbs.com, sompo-cn.com, ngaa.info and fuliplat.com.

These name servers tend to be deployed in combination with the name servers vip3.alidns.com and vip4.alidns.com.

Hostnames that resolve to 6 IP addresses:

vip1.alidns.com resolves to 8.212.93.1, 140.205.1.1, 170.33.32.208 and 3 other IP addresses.

vip2.alidns.com resolves to 8.212.93.2, 140.205.1.2, 170.33.32.209 and 3 other IP addresses.