codefree.cn - dns.ninja

`codefree.cn`

DNSSEC	⚠️ Not signed
NS	`dns19.hichina.com` ⭐
		A	2408:4009:501::27^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns20.hichina.com`
		A	2408:4009:501::28^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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=i2xSWIIhwzo4eKNHD3aG`
SOA	`dns19.hichina.com`hostmaster@hichina.com 2026-06-04 #13

`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=2035085633

Same first word

codefree.com

codefree.co

codefree.xyz

codefree.cn

codefree.cl

codefree.us

codefree.store

codefree.io

codefree.de

codefree.tech

codefree.net

codefree.com.br

codefree.ch

codefree.at

codefree.in

codefree.nl

Similar names

DNS History

12 records (5 active, 7 former)

●NSdns19.hichina.com2026-02-24 → 2026-07-25 · 3 obs

○ 2015-11-27 05:07:44
● 2026-02-24 04:23:56
● 2026-07-25 01:02:10

●NSdns20.hichina.com2026-02-24 → 2026-07-25 · 3 obs

○ 2015-11-27 05:07:44
● 2026-02-24 04:23:56
● 2026-07-25 01:02:10

○NSns1.22.cn2015-08-12 → 2015-08-12 · 3 obs

● 2015-08-12 11:43:12
○ 2015-11-27 05:07:44
○ 2026-07-25 01:02:10

○NSns2.22.cn2015-08-12 → 2015-08-12 · 3 obs

● 2015-08-12 11:43:12
○ 2015-11-27 05:07:44
○ 2026-07-25 01:02:10

○NSns3.22.cn2015-08-12 → 2015-08-12 · 3 obs

● 2015-08-12 11:43:12
○ 2015-11-27 05:07:44
○ 2026-07-25 01:02:10

○NSns4.22.cn2015-08-12 → 2015-08-12 · 3 obs

● 2015-08-12 11:43:12
○ 2015-11-27 05:07:44
○ 2026-07-25 01:02:10

●MXmx1.feishu.cn2026-07-21 → 2026-07-25 · 3 obs

○ 2026-06-08 16:44:42
● 2026-07-21 07:33:44
● 2026-07-25 01:02:10

●MXmx2.feishu.cn2026-07-21 → 2026-07-25 · 3 obs

○ 2026-06-08 16:44:42
● 2026-07-21 07:33:44
● 2026-07-25 01:02:10

●MXmx3.feishu.cn2026-07-21 → 2026-07-25 · 3 obs

○ 2026-06-08 16:44:42
● 2026-07-21 07:33:44
● 2026-07-25 01:02:10

○MXmxbiz1.qq.com2026-02-24 → 2026-06-08 · 4 obs

● 2026-02-24 04:23:56
● 2026-06-08 16:44:42
○ 2026-07-21 07:33:44
○ 2026-07-25 01:02:10

○MXmxbiz2.qq.com2026-02-24 → 2026-06-08 · 4 obs

● 2026-02-24 04:23:56
● 2026-06-08 16:44:42
○ 2026-07-21 07:33:44
○ 2026-07-25 01:02:10

○A118.193.206.2172015-08-12 → 2015-08-12 · 3 obs

● 2015-08-12 11:43:12
○ 2015-11-27 05:07:44
○ 2026-07-25 01:02:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
codefree.cn	dns19.hichina.com, dns20.hichina.com	-

✅ Authoritative Response

Server:39.96.153.38

NS records: dns19.hichina.com, dns20.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codefree.cn (unsigned zone)

⏱️ Timing

Total: 1753ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns19.hichina.com, dns20.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=i2xSWI`
SOA	1	`dns19.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

codefree.cn is served by two delegated name servers, dns19.hichina.com and dns20.hichina.com.

codefree.cn has the same name server delegation as a number of other domains, such as jh360.cn, darvan.cn, vfan.com.cn and two more.

The name servers of codefree.cn overlap at least partially with those of other domains — among them gyxww.net, d52.com.cn, flornana.com and two more.

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

Host names resolving to 9 IP numbers:

dns19.hichina.com carries IP addresses 39.96.153.40, 39.96.153.60 and 47.118.199.200, with 6 other addresses beyond those.

dns20.hichina.com carries IP addresses 39.96.153.38, 39.96.153.61 and 47.118.199.198, with 6 other addresses beyond those.

Mail Servers

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

codefree.cn shares at least some of its mail servers with other domains — for example yongxinshuo.com, tradplus.com, coozo.com and two more.

Hosts with three IP address records:

mx3.feishu.cn resolves to three addresses: 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Hosts with two IP numbers each:

mx2.feishu.cn maps to two IP addresses — 101.126.58.225 and 122.14.229.0.

Hosts that resolve to one IP address:

mx1.feishu.cn points to the IP address 52.220.106.220.

These two host names — mx3.feishu.cn and mx1.feishu.cn — each point to 52.220.106.220 IP addresses.

These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 101.126.58.225 IP addresses.

These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 122.14.229.0 IP addresses.