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=1784831967

Same first word

30code.com

30code.co.kr

Similar names

code03.org

30doce.com

code30.co

code30.ma

deco30.nl

deco03.com

code30.org

code30.com

code03.com

code30.de

code30.net

DNS History

8 records (5 active, 3 former)

●NSns11.xincache.com2016-12-31 → 2026-07-23 · 2 obs

● 2016-12-31 18:21:00
● 2026-07-23 19:02:04

●NSns12.xincache.com2016-12-31 → 2026-07-23 · 2 obs

● 2016-12-31 18:21:00
● 2026-07-23 19:02:04

●MXmx1.feishu.cn2026-02-19 → 2026-07-23 · 5 obs

○ 2016-12-31 18:21:00
● 2026-02-19 21:42:18
○ 2026-07-09 09:35:02
● 2026-07-12 23:33:22
● 2026-07-23 19:02:04

●MXmx2.feishu.cn2026-02-19 → 2026-07-23 · 5 obs

○ 2016-12-31 18:21:00
● 2026-02-19 21:42:18
○ 2026-07-09 09:35:02
● 2026-07-12 23:33:22
● 2026-07-23 19:02:04

●MXmx3.feishu.cn2026-02-19 → 2026-07-23 · 5 obs

○ 2016-12-31 18:21:00
● 2026-02-19 21:42:18
○ 2026-07-09 09:35:02
● 2026-07-12 23:33:22
● 2026-07-23 19:02:04

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

● 2016-12-31 18:21:00
○ 2026-02-19 21:42:18
○ 2026-07-23 19:02:04

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

● 2016-12-31 18:21:00
○ 2026-02-19 21:42:18
○ 2026-07-23 19:02:04

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

● 2016-12-31 18:21:00
○ 2026-02-19 21:42:18
○ 2026-07-23 19:02:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.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: 562ms | 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, eastpaper.cn and two others.

These name servers are frequently seen alongside ns13.xincache.com, ns14.xincache.com, ns17.xincache.com and 7 other name servers.

DNS names with 8 IP addresses:

ns11.xincache.com carries IP addresses 1.12.0.4, 36.155.149.180 and 112.80.181.45, with 5 other addresses beyond those.

DNS names with 7 IP addresses:

ns12.xincache.com carries IP addresses 1.12.0.1, 36.155.149.176 and 112.80.181.111, with 4 other addresses beyond those.

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 that point 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.