30code.com - dns.ninja

`30code.com`

DNSSEC	⚠️ Not signed
NS	`ns11.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	2402:4e00:1730::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
NS	`ns12.xincache.com`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
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=wy7sTbKePgC6NK0Exj3u`
SOA	`ns11.xincache.com`ns12@xincache.com serial=1730973338

`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=1780750061

Same first word

30code.com

30code.co.kr

Similar names

code03.org

30doce.com

code30.co

code30.ma

deco30.nl

code30.org

code30.com

code03.com

code30.de

code30.net

DNS History

8 records (5 active, 3 former)

●NSns11.xincache.com2016-12-31 → 2026-06-06 · 2 obs

● 2016-12-31 18:21:00
● 2026-06-06 13:07:56

●NSns12.xincache.com2016-12-31 → 2026-06-06 · 2 obs

● 2016-12-31 18:21:00
● 2026-06-06 13:07:56

●MXmx1.feishu.cn2026-02-19 → 2026-06-06 · 3 obs

○ 2016-12-31 18:21:00
● 2026-02-19 21:42:18
● 2026-06-06 13:07:56

●MXmx2.feishu.cn2026-02-19 → 2026-06-06 · 3 obs

○ 2016-12-31 18:21:00
● 2026-02-19 21:42:18
● 2026-06-06 13:07:56

●MXmx3.feishu.cn2026-02-19 → 2026-06-06 · 3 obs

○ 2016-12-31 18:21:00
● 2026-02-19 21:42:18
● 2026-06-06 13:07:56

○MXmxbiz1.qq.com2016-12-31 → 2016-12-31 · 3 obs

● 2016-12-31 18:21:00
○ 2026-02-19 21:42:18
○ 2026-06-06 13:07:56

○MXmxbiz2.qq.com2016-12-31 → 2016-12-31 · 3 obs

● 2016-12-31 18:21:00
○ 2026-02-19 21:42:18
○ 2026-06-06 13:07:56

○A113.105.139.432016-12-31 → 2016-12-31 · 3 obs

● 2016-12-31 18:21:00
○ 2026-02-19 21:42:18
○ 2026-06-06 13:07:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
30code.com	ns11.xincache.com, ns12.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.1

NS records: ns11.xincache.com, ns12.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 30code.com (unsigned zone)

⏱️ Timing

Total: 220ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns11.xincache.com, ns12.xincache.com`
MX	3	`mx1.feishu.cn (pri: 1), mx2.feishu.cn (pri: 5)...`
TXT	2	`v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=wy7sTb`
SOA	1	`ns11.xincache.com ns12.xincache.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns11.xincache.com, ns11.xincache.com, ns11.xincache.com...)

Analysis

Name Servers

30code.com is served by two delegated name servers, ns11.xincache.com and ns12.xincache.com.

30code.com shares its NS records with other domains, for example sh-wall.com, dingdingdg.com, gdjpt.com and two others.

30code.com shares at least some of its name servers with other domains, including lxxsd.cn, tiantianlights.com, lhey.cn and two others.

These name servers co-occur with ns13.xincache.com, ns14.xincache.com, ns17.xincache.com and seven other name servers on a regular basis.

DNS names with 8 IP addresses:

ns11.xincache.com points to 1.12.0.4, 36.155.149.180, 112.80.181.45 and five other IP addresses.

DNS names with 7 IP addresses:

ns12.xincache.com resolves to at least 1.12.0.1, 36.155.149.176 and 112.80.181.111, with four additional IP addresses.

Mail Servers

30code.com is handled by three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

There is at least a partial MX overlap between 30code.com and other domains, including xiny.net, tyduanju.com, rfcinfo.com and two others.

Hostnames that map to three IP numbers:

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

Host names that have two IP addresses:

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

Host names with one IP number:

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.