51sct.com - robtex.com
51sct.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 47.104.170.171🇨🇳 Alibaba-Cloud47.104.0.0/16 | ||||||
| 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) | ||||||
| SOA | dns9.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
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=1777016431 | ||||||
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSdns10.hichina.com2015-11-11 → 2026-04-24 · 3 obs
● 2015-11-11 07:13:20
● 2026-04-24 07:48:00
●NSdns9.hichina.com2015-11-11 → 2026-04-24 · 3 obs
● 2015-11-11 07:13:20
● 2026-04-24 07:48:00
○NSns17.xincache.com2015-06-21 → 2015-06-21 · 3 obs
○ 2015-11-11 07:13:20
○ 2026-04-24 07:48:00
○NSns18.xincache.com2015-06-21 → 2015-06-21 · 3 obs
○ 2015-11-11 07:13:20
○ 2026-04-24 07:48:00
○A115.29.5.272015-11-11 → 2017-12-14 · 5 obs
● 2015-11-11 07:13:20
● 2017-12-14 18:00:16
○ 2026-04-10 22:14:40
○ 2026-04-24 07:48:00
○A203.171.235.792015-06-21 → 2015-06-21 · 3 obs
○ 2015-11-11 07:13:20
○ 2026-04-24 07:48:00
●A47.104.170.1712026-04-10 → 2026-04-24 · 3 obs
● 2026-04-10 22:14:40
● 2026-04-24 07:48:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 51sct.com | dns9.hichina.com, dns10.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.41
NS records: dns9.hichina.com, dns10.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51sct.com (unsigned zone)
⏱️ Timing
Total: 3512ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 47.104.170.171 |
| NS | 2 | dns10.hichina.com, dns9.hichina.com |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| SOA | 1 | dns9.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)
Analysis
IP Addresses
51sct.com resolves to one IP number: 47.104.170.171.
Name Servers
51sct.com's delegation uses two name servers: dns10.hichina.com and dns9.hichina.com.
51sct.com uses the same name server setup as other domains, such as softetone.com, netcnc.com, 8817788.cn, 98yyj.com and 0573123.com.
51sct.com at least partially shares name servers with other domains, including rambo.cn, wjcbchina.com, thunlp.org, qianxiuwang.com and aijzn.com.
These name servers are often used with ns1.alidns.com and ns2.alidns.com.
Host names with nine IP numbers: The host name 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. The host name 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
51sct.com is served by two mail servers mxbiz1.qq.com and mxbiz2.qq.com.
51sct.com shares the same mail server setup as other domains, for instance zxhysoft.com, zhizhuwang.online, yoyolighting.com, bjzfbw.com and 2muslim.com.
51sct.com shares at least some mail servers with other domains, for example 91go.com, nmgzhcs.com, qniao.com, zrwinfo.com and voyagebs.com.