leetcode.pro - dns.ninja

`leetcode.pro`

DNSSEC	⚠️ Not signed
A	47.99.228.218^{🇨🇳 Alibaba-Cloud47.98.0.0/15 Hangzhou Alibaba Advertising Co.,Ltd.}
NS	`dns11.hichina.com` ⭐
		A	2408:4009:501::19^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 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	139.224.142.122^{🇨🇳 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	`dns12.hichina.com`
		A	2408:4009:501::20^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 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	139.224.142.121^{🇨🇳 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	`mx01.dm.aliyun.com` ⭐
		A	59.82.33.237^{🇨🇳 Alibaba-Cloud59.82.32.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
TXT	`v=spf1 include:spf1.dm.aliyun.com -all`
SOA	`dns11.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`pro`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.pro.afilias-nst.info` ⭐
	NS	`a2.pro.afilias-nst.info`
	NS	`b0.pro.afilias-nst.org`
	NS	`b2.pro.afilias-nst.org`
	NS	`c0.pro.afilias-nst.info`
	NS	`d0.pro.afilias-nst.org`
	SOA	`a0.pro.afilias-nst.info`hostmaster@donuts.email serial=1785456145

Same first word

leetcode.io

leetcode.net

leetcode.uz

leetcode.pro

leetcode.com

leetcode.wang

leetcode.codes

leetcode.co

leetcode.jp

leetcode.cn

leetcode.in

leetcode.ca

Similar names

DNS History

4 records (4 active, 0 former)

●NSdns11.hichina.com2019-03-28 → 2026-07-31 · 2 obs

● 2019-03-28 09:42:10
● 2026-07-31 00:44:12

●NSdns12.hichina.com2019-03-28 → 2026-07-31 · 2 obs

● 2019-03-28 09:42:10
● 2026-07-31 00:44:12

●MXmx01.dm.aliyun.com2019-03-28 → 2026-07-31 · 2 obs

● 2019-03-28 09:42:10
● 2026-07-31 00:44:12

●A47.99.228.2182019-03-28 → 2026-07-31 · 2 obs

● 2019-03-28 09:42:10
● 2026-07-31 00:44:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pro	a0.pro.afilias-nst.info, a2.pro.afilias-nst.info, b0.pro.afilias-nst.org, b2.pro.afilias-nst.org...	12 records
leetcode.pro	dns12.hichina.com, dns11.hichina.com	-

✅ Authoritative Response

Server:120.76.107.41

NS records: dns12.hichina.com, dns11.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for leetcode.pro (unsigned zone)

⏱️ Timing

Total: 1291ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.99.228.218`
NS	2	`dns12.hichina.com, dns11.hichina.com`
MX	1	`mx01.dm.aliyun.com (pri: 10)`
TXT	1	`v=spf1 include:spf1.dm.aliyun.com -all`
SOA	1	`dns11.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (a0.pro.afilias-nst.info, a0.pro.afilias-nst.info, a2.pro.afilias-nst.info...)

Analysis

IP Addresses

leetcode.pro has exactly one IP address — 47.99.228.218.

Name Servers

The NS records for leetcode.pro delegate to dns11.hichina.com and dns12.hichina.com.

The name server configuration of leetcode.pro is shared with other domains, for instance jzygyy.com, zg101.com, miduan.cn and two others.

leetcode.pro shares at least some of its name servers with other domains, including cskcs.com, unitopia.com, rqjwk.asia and two others.

These name servers are frequently seen alongside the name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.

Hosts with 9 IP addresses each:

dns11.hichina.com maps to 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 additional IP addresses.

dns12.hichina.com maps to 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 additional IP addresses.

Mail Servers

leetcode.pro uses one mail server — mx01.dm.aliyun.com.

The mail server setup of leetcode.pro matches that of other domains such as hnfamu.com, btaedu.com, mail.lituo.com.cn and two others.

At least some of the mail servers used by leetcode.pro are shared with other domains: yidu.ink, xn4.net, lcwjtoys.com and two others among them.

It is common to find these mail servers paired with the mail servers mxw.mxhichina.com, mxn.mxhichina.com and mx1.qiye.aliyun.com, as well as two others.

mx01.dm.aliyun.com resolves to 59.82.33.237 and no other IP number.