ckcsec.com - dns.ninja

`ckcsec.com`

DNSSEC	⚠️ Not signed
NS	`dns31.hichina.com` ⭐
		A	2408:4009:501::39^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 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	139.224.142.109^{🇨🇳 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	`dns32.hichina.com`
		A	2408:4009:501::40^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 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	139.224.142.107^{🇨🇳 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,}
MX	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽⁵⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽¹⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`verification-code-site-App_feishu=NuSdEokOmFdFoZAs6jjj`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
SOA	`dns31.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1780939311

Same first word

ckcsec.cn

ckcsec.com

Similar names

eccskc.org

DNS History

5 records (5 active, 0 former)

●NSdns31.hichina.com2026-05-09 → 2026-06-08 · 2 obs

● 2026-05-09 13:37:10
● 2026-06-08 17:27:32

●NSdns32.hichina.com2026-05-09 → 2026-06-08 · 2 obs

● 2026-05-09 13:37:10
● 2026-06-08 17:27:32

●MXmx1.feishu.cn2026-05-09 → 2026-06-08 · 2 obs

● 2026-05-09 13:37:10
● 2026-06-08 17:27:32

●MXmx2.feishu.cn2026-05-09 → 2026-06-08 · 2 obs

● 2026-05-09 13:37:10
● 2026-06-08 17:27:32

●MXmx3.feishu.cn2026-05-09 → 2026-06-08 · 2 obs

● 2026-05-09 13:37:10
● 2026-06-08 17:27:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ckcsec.com	dns31.hichina.com, dns32.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.37

NS records: dns31.hichina.com, dns32.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ckcsec.com (unsigned zone)

⏱️ Timing

Total: 567ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns31.hichina.com, dns32.hichina.com`
MX	3	`mx2.feishu.cn (pri: 5), mx3.feishu.cn (pri: 10)...`
TXT	2	`v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=NuSdEo`
SOA	1	`dns31.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns31.hichina.com, dns31.hichina.com, dns31.hichina.com...)

Analysis

Name Servers

DNS delegation for ckcsec.com points to two name servers: dns31.hichina.com and dns32.hichina.com.

ckcsec.com shares its NS records with other domains, for example xinytech.com, zjsonghua.com, lasscac.cn and two others.

The name servers of ckcsec.com overlap at least partially with those of other domains — among them cefcexpo.com.cn, 15800575755.com, atdchina.com and two more.

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

DNS names with 9 IP addresses:

The host dns31.hichina.com points to 39.96.153.39, 39.96.153.59, 47.118.199.199 and six more IP addresses.

The host dns32.hichina.com points to 39.96.153.37, 39.96.153.62, 47.118.199.197 and six more IP addresses.

Mail Servers

Mail for ckcsec.com is routed through three mail servers — mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

There is at least a partial MX overlap between ckcsec.com and other domains, including v-data.cn, bestseller.cn, senasic.com and two others.

These mail servers often co-occur with the mail servers mxbiz1.qq.com.

Hostnames that map to three IP numbers:

mx3.feishu.cn has IP addresses 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Host names that have two IP addresses:

mx2.feishu.cn has two IP addresses: 101.126.58.225 and 122.14.229.0.

Host names with one IP number:

mx1.feishu.cn directs to 52.220.106.220.

Host names pointing to 52.220.106.220 IP addresses: mx3.feishu.cn and mx1.feishu.cn.

Host names pointing to 101.126.58.225 IP addresses: mx3.feishu.cn and mx2.feishu.cn.

Host names pointing to 122.14.229.0 IP addresses: mx3.feishu.cn and mx2.feishu.cn.