ls51.cn - robtex.com

ls51.cn

DNSSEC⚠️ Not signed
A101.37.223.183🇨🇳 Alibaba-Cloud101.37.128.0/17
NSdns7.hichina.com ⭐
A2408:4009:501::15🇨🇳 Alibaba-Cloud2408:4009:501::/48
A39.96.153.43🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A39.96.153.63🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A47.118.199.203🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A47.118.199.213🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A120.76.107.43🇨🇳 Alibaba-Cloud120.76.0.0/17
A120.76.107.63🇨🇳 Alibaba-Cloud120.76.0.0/17
A139.224.142.113🇨🇳 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,
A139.224.142.123🇨🇳 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,
NSdns8.hichina.com
A2408:4009:501::16🇨🇳 Alibaba-Cloud2408:4009:501::/48
A39.96.153.44🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A39.96.153.54🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A47.118.199.204🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A47.118.199.214🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A120.76.107.44🇨🇳 Alibaba-Cloud120.76.0.0/17
A120.76.107.54🇨🇳 Alibaba-Cloud120.76.0.0/17
A139.224.142.114🇨🇳 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,
A139.224.142.124🇨🇳 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,
MXmxbiz1.qq.com ⭐
MXmxbiz2.qq.com(10)
TXTv=spf1 include:spf.mail.qq.com ~all
SOAdns7.hichina.comhostmaster@hichina.com 2026-01-12 #9

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035073250

Same first word

ls51.top
ls51.cn

Similar names

ls15.site
15ls.com
l5s1.com.au
sl15.nl
51sl.cn

DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NSdns7.hichina.comdns8.hichina.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netMXmxbiz1.qq.commxbiz2.qq.comA101.37.223.18368.64.164.20
●NSdns7.hichina.com2026-05-29 → 2026-07-22 · 3 obs
○ 2015-11-16 07:51:36
● 2026-05-29 10:31:58
● 2026-07-22 04:44:56
●NSdns8.hichina.com2026-05-29 → 2026-07-22 · 3 obs
○ 2015-11-16 07:51:36
● 2026-05-29 10:31:58
● 2026-07-22 04:44:56
○NSf1g1ns1.dnspod.net2015-07-12 → 2015-11-16 · 4 obs
● 2015-07-12 10:25:06
● 2015-11-16 07:51:36
○ 2026-05-29 10:31:58
○ 2026-07-22 04:44:56
○NSf1g1ns2.dnspod.net2015-07-12 → 2015-11-16 · 4 obs
● 2015-07-12 10:25:06
● 2015-11-16 07:51:36
○ 2026-05-29 10:31:58
○ 2026-07-22 04:44:56
●MXmxbiz1.qq.com2026-05-29 → 2026-07-22 · 2 obs
● 2026-05-29 10:31:58
● 2026-07-22 04:44:56
●MXmxbiz2.qq.com2026-05-29 → 2026-07-22 · 2 obs
● 2026-05-29 10:31:58
● 2026-07-22 04:44:56
●A101.37.223.1832026-05-29 → 2026-07-22 · 3 obs
○ 2015-11-16 07:51:36
● 2026-05-29 10:31:58
● 2026-07-22 04:44:56
○A68.64.164.202015-07-12 → 2015-11-16 · 4 obs
● 2015-07-12 10:25:06
● 2015-11-16 07:51:36
○ 2026-05-29 10:31:58
○ 2026-07-22 04:44:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cne.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...-
ls51.cndns7.hichina.com, dns8.hichina.com-

✅ Authoritative Response

Server:139.224.142.113

NS records: dns7.hichina.com, dns8.hichina.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at ls51.cn: Error: DNS query timeout: 203.119.29.1 for DS ls51.cn

⏱️ Timing

Total: 4649ms | Queries: -

📄 Records

TypeCountSample Data
A1101.37.223.183
NS2dns8.hichina.com, dns7.hichina.com
MX2mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)
TXT1v=spf1 include:spf.mail.qq.com ~all
SOA1dns7.hichina.com hostmaster.hichina.com

Analysis

IP Addresses

ls51.cn points to a single IP number: 101.37.223.183.

Additional host names — dashi100.cn, ds-yb.cn, idashi.cn and two others — share IP numbers with ls51.cn.

Name Servers

The NS records for ls51.cn delegate to dns7.hichina.com and dns8.hichina.com.

ls51.cn shares its name server setup with other domains, including qic.cn, rujinhongbao.com, chaci.cc and two others.

The name servers of ls51.cn overlap at least partially with those of other domains — among them cloudke.com, lancel.cn, ewqcxz.com and two more.

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

Host names with 9 IP numbers:

dns7.hichina.com maps to 39.96.153.43, 39.96.153.63, 47.118.199.203 and 6 additional IP addresses.

dns8.hichina.com maps to 39.96.153.44, 39.96.153.54, 47.118.199.204 and 6 additional IP addresses.

Mail Servers

ls51.cn has two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

ls51.cn shares the same mail server setup as other domains, including playhudong.com, yishexu.cn, 322workhouse.com and two others.

ls51.cn partially shares its mail servers with other domains — including ricsson-cn.com, zsit.cc, hi-jia.com and wapgoo.com.