techdoc.cn - dns.ninja

`techdoc.cn`

DNSSEC	⚠️ Not signed
NS	`dns11.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::19^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.122^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns12.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::20^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.121^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}

`cn`

	DNSSEC	⚠️ Not signed
	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=2035028162

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DNS History

9 records (2 active, 7 former)

●NSdns11.hichina.com2026-03-24 → 2026-07-11 · 3 obs

○ 2015-10-26 15:04:10
● 2026-03-24 18:54:42
● 2026-07-11 08:05:12

●NSdns12.hichina.com2026-03-24 → 2026-07-11 · 3 obs

○ 2015-10-26 15:04:10
● 2026-03-24 18:54:42
● 2026-07-11 08:05:12

○NSns1.myhostadmin.net2015-10-26 → 2015-10-26 · 3 obs

● 2015-10-26 15:04:10
○ 2026-03-24 18:54:42
○ 2026-07-11 08:05:12

○NSns2.myhostadmin.net2015-10-26 → 2015-10-26 · 3 obs

● 2015-10-26 15:04:10
○ 2026-03-24 18:54:42
○ 2026-07-11 08:05:12

○NSns3.myhostadmin.net2015-10-26 → 2015-10-26 · 3 obs

● 2015-10-26 15:04:10
○ 2026-03-24 18:54:42
○ 2026-07-11 08:05:12

○NSns4.myhostadmin.net2015-10-26 → 2015-10-26 · 3 obs

● 2015-10-26 15:04:10
○ 2026-03-24 18:54:42
○ 2026-07-11 08:05:12

○NSns5.myhostadmin.net2015-10-26 → 2015-10-26 · 3 obs

● 2015-10-26 15:04:10
○ 2026-03-24 18:54:42
○ 2026-07-11 08:05:12

○NSns6.myhostadmin.net2015-10-26 → 2015-10-26 · 3 obs

● 2015-10-26 15:04:10
○ 2026-03-24 18:54:42
○ 2026-07-11 08:05:12

○A119.96.29.2142026-03-24 → 2026-03-24 · 3 obs

● 2026-03-24 18:54:42
○ 2026-07-11 05:19:16
○ 2026-07-11 08:05:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn...	-
techdoc.cn	dns11.hichina.com, dns12.hichina.com	-

✅ Authoritative Response

Server:47.118.199.211

NS records: dns11.hichina.com, dns12.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techdoc.cn (unsigned zone)

⏱️ Timing

Total: 4929ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`119.96.29.214`
NS	2	`dns12.hichina.com, dns11.hichina.com`
SOA	1	`dns11.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

techdoc.cn is served by two delegated name servers, dns11.hichina.com and dns12.hichina.com.

techdoc.cn uses the same name servers as several other domains — among them gdeagle.com, rrgf.cn, gljc.cn and two more.

techdoc.cn shares at least some of its name servers with other domains, including zlzj.net, yatobi.com, ibryu.cn and two others.

These name servers are frequently paired with the name servers expirens3.hichina.com and expirens4.hichina.com.

Hostnames that resolve to 9 IP addresses:

dns11.hichina.com carries IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, with 6 other addresses beyond those.

dns12.hichina.com carries IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, with 6 other addresses beyond those.