e-lesson.cn - robtex.com
e-lesson.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 82.157.135.51🇨🇳 TENCENT-NET-AP82.157.128.0/18 | ||||||
| NS | dns9.hichina.com ⭐ | ||||||
| A | 2408:4009:501::17🇨🇳 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 | dns10.hichina.com | ||||||
| A | 2408:4009:501::18🇨🇳 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 | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| TXT | 201705170000001ng966kg82xeopwk13lajjn1m5vl58yqt7z6c6umyxktllqhfa | ||||||
| SOA | dns9.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
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=2034699070 | ||||||
Same first word
e-lesson.cn |
Similar names
DNS History
6 records (5 active, 1 former)
●NSdns10.hichina.com2017-06-28 → 2026-04-22 · 2 obs
● 2026-04-22 12:15:32
●NSdns9.hichina.com2017-06-28 → 2026-04-22 · 2 obs
● 2026-04-22 12:15:32
○A60.205.233.142017-06-28 → 2017-06-28 · 3 obs
○ 2026-04-14 08:32:36
○ 2026-04-22 12:15:32
●A82.157.135.512026-04-14 → 2026-04-22 · 3 obs
● 2026-04-14 08:32:36
● 2026-04-22 12:15:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| e-lesson.cn | dns9.hichina.com, dns10.hichina.com | - |
✅ Authoritative Response
Server:39.96.153.52
NS records: dns9.hichina.com, dns10.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for e-lesson.cn (unsigned zone)
⏱️ Timing
Total: 3425ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 82.157.135.51 |
| NS | 2 | dns10.hichina.com, dns9.hichina.com |
| MX | 2 | mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5) |
| TXT | 1 | 201705170000001ng966kg82xeopwk13lajjn1m5 |
| SOA | 1 | dns9.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
e-lesson.cn points to a single IP number: 82.157.135.51.
Name Servers
Delegation for e-lesson.cn rests with two name servers, dns10.hichina.com and dns9.hichina.com.
e-lesson.cn shares the same name server setup as other domains, including goodao.org, boyunvision.com.cn, yadewe.win, ganten.co and youbainuo.com.
e-lesson.cn partially shares name servers with other domains; for instance 51baocheng.com, othotel.com and simrun.cn.
These name servers are commonly used with expirens3.hichina.com and expirens4.hichina.com.
Host names with nine IP numbers:
dns10.hichina.com points to: 2408:4009:501::18, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.
dns9.hichina.com points to: 2408:4009:501::17, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.
Mail Servers
e-lesson.cn is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
e-lesson.cn uses the same mail server configuration as other domains, such as jnpush.com, cocnit.com, taskunion.com, prophets.cn and trans-box.com.
e-lesson.cn shares mail servers with other domains, at least partially, for instance netdark.com and szsme.com.