`cykjc.com`

DNSSEC	⚠️ Not signed
A	106.14.28.157^{🇨🇳 Alibaba-Cloud106.14.0.0/16 Alibaba (US) Technology Co., Ltd.}
NS	`dns1.hichina.com` ⭐
		A	2408:4009:501::9^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 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	139.224.142.123^{🇨🇳 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	`dns2.hichina.com`
		A	2408:4009:501::10^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.44^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.114^{🇨🇳 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	139.224.142.124^{🇨🇳 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	`v=spf1 +include:_netblocks.m.feishu.cn -all`
TXT	`verification-code-site-App_feishu=i5AfLvtGHx5PTKWmLyOv`
SOA	`dns1.hichina.com`hostmaster@hichina.com 2026-06-04 #13

`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=1786320029

Subdomains

openai.cykjc.com

Same first word

cykjc.com

Similar names

ycckj.com

jckcy.com

cjkyc.shop

DNS History

12 records (6 active, 6 former)

●NSdns1.hichina.com2018-08-08 → 2026-08-10 · 3 obs

○ 2017-02-03 00:12:16
● 2018-08-08 19:31:26
● 2026-08-10 00:24:18

●NSdns2.hichina.com2018-08-08 → 2026-08-10 · 3 obs

○ 2017-02-03 00:12:16
● 2018-08-08 19:31:26
● 2026-08-10 00:24:18

○NSns1.eedns.com2017-02-03 → 2017-02-03 · 3 obs

● 2017-02-03 00:12:16
○ 2018-08-08 19:31:26
○ 2026-08-10 00:24:18

○NSns2.eedns.com2017-02-03 → 2017-02-03 · 3 obs

● 2017-02-03 00:12:16
○ 2018-08-08 19:31:26
○ 2026-08-10 00:24:18

●MXmx1.feishu.cn2026-04-01 → 2026-08-10 · 3 obs

○ 2026-03-02 10:50:06
● 2026-04-01 12:22:36
● 2026-08-10 00:24:18

●MXmx2.feishu.cn2026-04-01 → 2026-08-10 · 3 obs

○ 2026-03-02 10:50:06
● 2026-04-01 12:22:36
● 2026-08-10 00:24:18

●MXmx3.feishu.cn2026-04-01 → 2026-08-10 · 3 obs

○ 2026-03-02 10:50:06
● 2026-04-01 12:22:36
● 2026-08-10 00:24:18

○MXmxbiz1.qq.com2026-03-02 → 2026-03-02 · 3 obs

● 2026-03-02 10:50:06
○ 2026-04-01 12:22:36
○ 2026-08-10 00:24:18

○MXmxbiz2.qq.com2026-03-02 → 2026-03-02 · 3 obs

● 2026-03-02 10:50:06
○ 2026-04-01 12:22:36
○ 2026-08-10 00:24:18

●A106.14.28.1572026-03-02 → 2026-08-10 · 3 obs

○ 2018-08-08 19:31:26
● 2026-03-02 10:50:06
● 2026-08-10 00:24:18

○A139.224.114.1502018-08-08 → 2018-08-08 · 4 obs

○ 2017-02-03 00:12:16
● 2018-08-08 19:31:26
○ 2026-03-02 10:50:06
○ 2026-08-10 00:24:18

○A173.247.227.282017-02-03 → 2017-02-03 · 3 obs

● 2017-02-03 00:12:16
○ 2018-08-08 19:31:26
○ 2026-08-10 00:24:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cykjc.com	dns2.hichina.com, dns1.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.43

NS records: dns2.hichina.com, dns1.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cykjc.com (unsigned zone)

⏱️ Timing

Total: 537ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`106.14.28.157`
NS	2	`dns2.hichina.com, dns1.hichina.com`
MX	3	`mx3.feishu.cn (pri: 10), mx2.feishu.cn (pri: 5)...`
TXT	2	`v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=i5AfLv`
SOA	1	`dns1.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns2.hichina.com, dns2.hichina.com, dns2.hichina.com...)

Analysis

Hierarchy

cykjc.com is the parent zone for openai.cykjc.com.

IP Addresses

cykjc.com resolves to just one IP address, 106.14.28.157.

Name Servers

cykjc.com has two authoritative name servers — dns1.hichina.com and dns2.hichina.com.

cykjc.com shares its NS records with other domains, for example langjuemould.com, shaona.cn, marchspring.com and two others.

cykjc.com partially shares its NS delegation with several other domains, including sibuke.com, shxxsm.com, htk31.vip and two others.

The name servers ns1.alidns.com, expirens3.hichina.com, expirens4.hichina.com and ns2.alidns.com are often found in use alongside these name servers.

DNS names with 9 IP addresses:

dns1.hichina.com points to 39.96.153.43, 39.96.153.63, 47.118.199.203 and 6 other IP addresses.

dns2.hichina.com points to 39.96.153.44, 39.96.153.54, 47.118.199.204 and 6 other IP addresses.

Mail Servers

cykjc.com uses three mail servers — mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

There is at least a partial MX overlap between cykjc.com and other domains, including aitime.space, alderspro.com, kyrise.com and two others.

Hostnames that map to three IP numbers:

mx3.feishu.cn resolves to 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Host names that have two IP addresses:

mx2.feishu.cn resolves to 101.126.58.225 and 122.14.229.0.

Host names that point to one IP address:

mx1.feishu.cn resolves to 52.220.106.220.

The host names mx3.feishu.cn and mx1.feishu.cn both resolve to 52.220.106.220 IP addresses.

The host names mx3.feishu.cn and mx2.feishu.cn both resolve to 101.126.58.225 IP addresses.

The host names mx3.feishu.cn and mx2.feishu.cn both resolve to 122.14.229.0 IP addresses.

cykjc.com - robtex.com

cykjc.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`cykjc.com`

`com`