tkool.cn - dns.ninja

`tkool.cn`

DNSSEC	⚠️ Not signed
NS	`dns10.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::18^{🇨🇳 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,}
NS	`dns9.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::17^{🇨🇳 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,}

`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=2035130684

Same first word

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DNS History

9 records (2 active, 7 former)

●NSdns10.hichina.com2026-02-28 → 2026-08-04 · 3 obs

○ 2016-11-26 12:47:56
● 2026-02-28 21:40:54
● 2026-08-04 11:18:32

●NSdns9.hichina.com2026-02-28 → 2026-08-04 · 3 obs

○ 2016-11-26 12:47:56
● 2026-02-28 21:40:54
● 2026-08-04 11:18:32

○NSns1.alidns.com2015-06-28 → 2016-11-26 · 4 obs

● 2015-06-28 17:04:26
● 2016-11-26 12:47:56
○ 2026-02-28 21:40:54
○ 2026-08-04 11:18:32

○NSns2.alidns.com2015-06-28 → 2016-11-26 · 4 obs

● 2015-06-28 17:04:26
● 2016-11-26 12:47:56
○ 2026-02-28 21:40:54
○ 2026-08-04 11:18:32

○MXmail.skrimple.com2017-12-18 → 2017-12-18 · 3 obs

● 2017-12-18 12:18:44
○ 2026-02-28 21:40:54
○ 2026-08-04 11:18:32

○A123.254.111.1902015-06-28 → 2015-06-28 · 3 obs

● 2015-06-28 17:04:26
○ 2015-11-01 14:54:06
○ 2026-08-04 11:18:32

○A124.16.31.1522015-11-01 → 2016-11-26 · 5 obs

○ 2015-06-28 17:04:26
● 2015-11-01 14:54:06
● 2016-11-26 12:47:56
○ 2017-12-18 12:18:44
○ 2026-08-04 11:18:32

○A47.253.132.1262026-02-28 → 2026-02-28 · 4 obs

○ 2017-12-18 12:18:44
● 2026-02-28 21:40:54
○ 2026-08-04 05:28:22
○ 2026-08-04 11:18:32

○A50.117.120.2512017-12-18 → 2017-12-18 · 4 obs

○ 2016-11-26 12:47:56
● 2017-12-18 12:18:44
○ 2026-02-28 21:40:54
○ 2026-08-04 11:18:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn...	-
tkool.cn	dns9.hichina.com, dns10.hichina.com	-

✅ Authoritative Response

Server:2408:4009:501::17

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tkool.cn (unsigned zone)

⏱️ Timing

Total: 3245ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.253.132.126`
NS	2	`dns9.hichina.com, dns10.hichina.com`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

tkool.cn is served by two delegated name servers, dns10.hichina.com and dns9.hichina.com.

tkool.cn has the same name server delegation as a number of other domains, such as yunshanghub.com, 2455.site, china-containerhouse.com and two more.

The name servers for tkool.cn overlap at least in part with those of other domains, including hylvbingwan.com and chinaproduct.top.

These name servers commonly appear alongside the name servers expirens3.hichina.com and expirens4.hichina.com.

Host names resolving to 9 IP numbers:

dns10.hichina.com carries IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, with 6 other addresses beyond those.

dns9.hichina.com carries IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, with 6 other addresses beyond those.