livecourse.com - dns.ninja
livecourse.com
| CNAME | n4o4qlmvtnozndsogyqsemg5wapo4sl4.yundunwaf2.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 8.139.74.193🇨🇳 Alibaba-Cloud8.139.0.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
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.netnstld@verisign-grs.com serial=1782288660 | ||||||
Subdomains
nudt-local.livecourse.com |
www.livecourse.com |
Same first word
livecourse.org |
livecourse.net |
livecourse.com |
Similar names
DNS History
5 records (3 active, 2 former)
○NSdns17.hichina.com2015-08-15 → 2026-04-04 · 4 obs
● 2015-08-15 05:47:04
● 2026-04-04 07:29:36
○ 2026-06-24 08:20:36
○ 2026-06-24 08:20:38
● 2026-04-04 07:29:36
○ 2026-06-24 08:20:36
○ 2026-06-24 08:20:38
○NSdns18.hichina.com2015-08-15 → 2026-04-04 · 4 obs
● 2015-08-15 05:47:04
● 2026-04-04 07:29:36
○ 2026-06-24 08:20:36
○ 2026-06-24 08:20:38
● 2026-04-04 07:29:36
○ 2026-06-24 08:20:36
○ 2026-06-24 08:20:38
●NSvip3.alidns.com2026-06-24 → 2026-06-24 · 3 obs
○ 2026-04-04 07:29:36
● 2026-06-24 08:20:36
● 2026-06-24 08:20:38
● 2026-06-24 08:20:36
● 2026-06-24 08:20:38
●NSvip4.alidns.com2026-06-24 → 2026-06-24 · 3 obs
○ 2026-04-04 07:29:36
● 2026-06-24 08:20:36
● 2026-06-24 08:20:38
● 2026-06-24 08:20:36
● 2026-06-24 08:20:38
●CNAMEn4o4qlmvtnozndsogyqsemg5wapo4sl4.yundunwaf2.com2026-04-04 → 2026-06-24 · 2 obs
● 2026-04-04 07:29:36
● 2026-06-24 08:20:38
● 2026-06-24 08:20:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net... | - |
| livecourse.com | vip3.alidns.com, vip4.alidns.com | 22 records |
✅ Authoritative Response
Server:121.40.6.164
NS records: vip3.alidns.com, vip4.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for livecourse.com (unsigned zone)
⏱️ Timing
Total: 502ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | vip3.alidns.com, vip4.alidns.com |
| CNAME | 1 | n4o4qlmvtnozndsogyqsemg5wapo4sl4.yundunw |
| SOA | 1 | vip3.alidns.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 22
Out-of-bailiwick: 22 (vip3.alidns.com, vip3.alidns.com, vip3.alidns.com...)
Analysis
Hierarchy
nudt-local.livecourse.com and www.livecourse.com are both subdomains of livecourse.com.
IP Addresses
livecourse.com resolves to one IP address: 8.139.74.193.
Additional host names such as n4o4qlmvtnozndsogyqsemg5wapo4sl4.yundunwaf2.com, jmhsp6rs0czp3rzpfyclvvs2zhtimrzn.yundunwaf2.com, axfhlxwf9vizbzxwzodwpalm4n3aahlo.yundunwaf1.com and ibvda451bysh0cpfm35veahjrwtdwdtz.aligfwaf.com share IP numbers with livecourse.com.