51yu.net - robtex.com
51yu.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 47.100.245.75🇨🇳 Alibaba-Cloud47.100.0.0/15 | ||||||
| NS | ns1.alidns.com ⭐ | ||||||
| A | 2408:4009:501::1🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.45🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.55🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.205🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.215🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.45🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.55🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.115🇨🇳 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 | 139.224.142.125🇨🇳 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 | ns2.alidns.com | ||||||
| A | 2408:4009:501::2🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.46🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.56🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.206🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.216🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.46🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.56🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.116🇨🇳 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 | 139.224.142.126🇨🇳 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 | ns1.alidns.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
net
| 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=1774605697 | ||||||
Same first word
Similar names
DNS History
8 records (3 active, 5 former)
●NSns1.alidns.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 10:11:12
○NSns1.cnolnic.com2007-09-21 → 2017-07-04 · 3 obs
● 2017-07-04 20:52:12
○ 2026-03-27 10:11:12
●NSns2.alidns.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 10:11:12
○NSns2.cnolnic.com2007-09-21 → 2017-07-04 · 3 obs
● 2017-07-04 20:52:12
○ 2026-03-27 10:11:12
○MXmail.51yu.net2007-09-21 → 2007-09-21 · 3 obs
○ 2015-05-20 18:06:18
○ 2026-03-27 10:11:12
○A210.14.71.1102015-05-20 → 2017-07-04 · 4 obs
● 2015-05-20 18:06:18
● 2017-07-04 20:52:12
○ 2026-03-27 10:11:12
○A218.5.77.882007-09-21 → 2007-09-21 · 3 obs
○ 2015-05-20 18:06:18
○ 2026-03-27 10:11:12
●A47.100.245.752026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 10:11:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | e.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, a.gtld-servers.net... | - |
| 51yu.net | ns1.alidns.com, ns2.alidns.com | - |
✅ Authoritative Response
Server:139.224.142.115
NS records: ns1.alidns.com, ns2.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51yu.net (unsigned zone)
⏱️ Timing
Total: 1021ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 47.100.245.75 |
| NS | 2 | ns1.alidns.com, ns2.alidns.com |
| SOA | 1 | ns1.alidns.com hostmaster.hichina.com |
Analysis
IP Addresses
51yu.net points to IP number: 47.100.245.75.
Name Servers
51yu.net is delegated to two name servers: ns1.alidns.com and ns2.alidns.com.
51yu.net shares the same name server setup as sinoslogistics.com, bike000.com, zqlgj.com, 62891482c11032.beer and 07aa251d211021.beer.
51yu.net at least partially shares name servers with other domains, for instance udmax.com, sukiu.net, fg5188.com, havefunktv.com and anttalk.com.
These name servers are commonly used alongside ns7.alidns.com, ns8.alidns.com, dns23.hichina.com, dns24.hichina.com, dns31.hichina.com, dns32.hichina.com, dns15.hichina.com, dns16.hichina.com, dns19.hichina.com and dns20.hichina.com.
Nine IP numbers per host:
ns1.alidns.com points to: 2408:4009:501::1, 39.96.153.45, 39.96.153.55, 47.118.199.205, 47.118.199.215, 120.76.107.45, 120.76.107.55, 139.224.142.115 and 139.224.142.125.
ns2.alidns.com points to: 2408:4009:501::2, 39.96.153.46, 39.96.153.56, 47.118.199.206, 47.118.199.216, 120.76.107.46, 120.76.107.56, 139.224.142.116 and 139.224.142.126.