letcloud.cn - robtex.com
letcloud.cn
| CNAME | www.letcloud.cn | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.131.51.39🇨🇳 CHINATELECOM-ZHEJIANG-NINGBO-IDC183.131.48.0/20 Chinanet-NingBo-IDC | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034713501 | ||||||
Subdomains
www.letcloud.cn |
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
○NSdns11.hichina.com2020-01-31 → 2020-01-31 · 3 obs
● 2020-01-31 05:43:02
○ 2026-04-14 03:17:42
○ 2026-04-26 06:58:06
○ 2026-04-14 03:17:42
○ 2026-04-26 06:58:06
○NSdns12.hichina.com2020-01-31 → 2020-01-31 · 3 obs
● 2020-01-31 05:43:02
○ 2026-04-14 03:17:42
○ 2026-04-26 06:58:06
○ 2026-04-14 03:17:42
○ 2026-04-26 06:58:06
●NSns1.alidns.com2026-04-14 → 2026-04-26 · 3 obs
○ 2020-01-31 05:43:02
● 2026-04-14 03:17:42
● 2026-04-26 06:58:06
● 2026-04-14 03:17:42
● 2026-04-26 06:58:06
●NSns2.alidns.com2026-04-14 → 2026-04-26 · 3 obs
○ 2020-01-31 05:43:02
● 2026-04-14 03:17:42
● 2026-04-26 06:58:06
● 2026-04-14 03:17:42
● 2026-04-26 06:58:06
●MXsmtp.letcloud.cn2026-04-14 → 2026-04-26 · 2 obs
● 2026-04-14 03:17:42
● 2026-04-26 06:58:06
● 2026-04-26 06:58:06
○A149.129.115.1082020-01-31 → 2020-01-31 · 3 obs
● 2020-01-31 05:43:02
○ 2026-04-14 03:17:42
○ 2026-04-26 06:58:06
○ 2026-04-14 03:17:42
○ 2026-04-26 06:58:06
●CNAMEwww.letcloud.cn2026-04-14 → 2026-04-26 · 2 obs
● 2026-04-14 03:17:42
● 2026-04-26 06:58:06
● 2026-04-26 06:58:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| letcloud.cn | ns1.alidns.com, ns2.alidns.com | - |
✅ Authoritative Response
Server:139.224.142.115
NS records: ns1.alidns.com, ns2.alidns.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 4436ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.alidns.com, ns2.alidns.com |
| MX | 1 | smtp.letcloud.cn (pri: 1) |
| CNAME | 1 | www.letcloud.cn |
| SOA | 1 | ns1.alidns.com hostmaster.hichina.com |
Analysis
Hierarchy
letcloud.cn is the parent of www.letcloud.cn.
IP Addresses
letcloud.cn points to a single IP number: 183.131.51.39.
Other host names, for instance www.letcloud.cn, share IP numbers with letcloud.cn.