ldcstudy.com - dns.ninja

`ldcstudy.com`

DNSSEC	⚠️ Not signed
A	61.145.122.236^{🇨🇳 CHINANET-BACKBONE61.144.0.0/15 China Telecom Corporation}
NS	`dns27.hichina.com` ⭐
		A	2408:4009:501::35^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 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	139.224.142.109^{🇨🇳 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	`dns28.hichina.com`
		A	2408:4009:501::36^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 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	139.224.142.107^{🇨🇳 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,}
SOA	`dns27.hichina.com`hostmaster@hichina.com 2026-06-04 #13

`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=1783934067

Subdomains

ketang.ldcstudy.com

hk.ldcstudy.com

www.ldcstudy.com

Same first word

ldcstudy.com

ldcstudy.net

Similar names

cdlstudy.com

DNS History

3 records (3 active, 0 former)

●NSdns27.hichina.com2015-06-09 → 2026-07-13 · 2 obs

● 2015-06-09 21:58:52
● 2026-07-13 09:35:00

●NSdns28.hichina.com2015-06-09 → 2026-07-13 · 2 obs

● 2015-06-09 21:58:52
● 2026-07-13 09:35:00

●A61.145.122.2362026-02-25 → 2026-07-13 · 2 obs

● 2026-02-25 19:02:18
● 2026-07-13 09:35:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ldcstudy.com	dns27.hichina.com, dns28.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.39

NS records: dns27.hichina.com, dns28.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ldcstudy.com (unsigned zone)

⏱️ Timing

Total: 479ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`61.145.122.236`
NS	2	`dns27.hichina.com, dns28.hichina.com`
SOA	1	`dns27.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns27.hichina.com, dns27.hichina.com, dns27.hichina.com...)

Analysis

Hierarchy

ldcstudy.com sits above ketang.ldcstudy.com, hk.ldcstudy.com and www.ldcstudy.com in the domain hierarchy.

IP Addresses

ldcstudy.com directs to one IP number, which is 61.145.122.236.

Further host names like ketang.ldcstudy.com and www.ldcstudy.com overlap in IP numbers with ldcstudy.com.

Name Servers

DNS delegation for ldcstudy.com points to two name servers: dns27.hichina.com and dns28.hichina.com.

ldcstudy.com has the same name server delegation as a number of other domains, such as hoysun-advisory.com, rtdfu.com, hqhsw.com and two more.

There is an overlap in name servers between ldcstudy.com and other domains, for example opmac.net, qbz.asia and dafozhi.com

These name servers tend to appear in combination with the name servers expirens3.hichina.com, expirens4.hichina.com, f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

Host names resolving to 9 IP numbers:

dns27.hichina.com has IP addresses 39.96.153.39, 39.96.153.59 and 47.118.199.199, plus 6 other.

dns28.hichina.com has IP addresses 39.96.153.37, 39.96.153.62 and 47.118.199.197, plus 6 other.