51zan.com - robtex.com
51zan.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns27.hichina.com ⭐ | ||||||
| A | 2408:4009:501::35🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.39🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.59🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.199🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.219🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.39🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.59🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.99🇨🇳 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 | 139.224.142.109🇨🇳 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 | dns28.hichina.com | ||||||
| A | 2408:4009:501::36🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.37🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.62🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.197🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.221🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.37🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.62🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.102🇨🇳 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 | 139.224.142.107🇨🇳 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 | v=spf1 include:spf.mail.qq.com ~all | ||||||
| SOA | dns27.hichina.comhostmaster@hichina.com 2026-01-09 #13 | ||||||
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=1776294187 | ||||||
Same first word
DNS History
17 records (4 active, 13 former)
●NSdns27.hichina.com2026-02-24 → 2026-04-15 · 3 obs
● 2026-02-24 19:58:40
● 2026-04-15 23:28:10
●NSdns28.hichina.com2026-02-24 → 2026-04-15 · 3 obs
● 2026-02-24 19:58:40
● 2026-04-15 23:28:10
○NSdns9.hichina.com2017-01-10 → 2017-01-10 · 4 obs
● 2017-01-10 07:46:30
○ 2020-02-03 01:09:48
○ 2026-04-15 23:28:10
○NSexpirens3.hichina.com2016-01-24 → 2016-01-24 · 4 obs
● 2016-01-24 17:39:38
○ 2016-05-02 23:24:56
○ 2026-04-15 23:28:10
○NSexpirens4.hichina.com2016-01-24 → 2016-01-24 · 4 obs
● 2016-01-24 17:39:38
○ 2016-05-02 23:24:56
○ 2026-04-15 23:28:10
○NSf1g1ns1.dnspod.net2015-08-08 → 2015-08-08 · 3 obs
○ 2016-01-24 17:39:38
○ 2026-04-15 23:28:10
○NSf1g1ns2.dnspod.net2015-08-08 → 2015-08-08 · 3 obs
○ 2016-01-24 17:39:38
○ 2026-04-15 23:28:10
○NSns1.alidns.com2016-05-02 → 2016-05-02 · 4 obs
● 2016-05-02 23:24:56
○ 2017-01-10 07:46:30
○ 2026-04-15 23:28:10
○NSns2.alidns.com2016-05-02 → 2016-05-02 · 4 obs
● 2016-05-02 23:24:56
○ 2020-02-03 01:09:48
○ 2026-04-15 23:28:10
○NSvip3.alidns.com2020-02-03 → 2020-02-03 · 4 obs
● 2020-02-03 01:09:48
○ 2026-02-24 19:58:40
○ 2026-04-15 23:28:10
○NSvip4.alidns.com2020-02-03 → 2020-02-03 · 4 obs
● 2020-02-03 01:09:48
○ 2026-02-24 19:58:40
○ 2026-04-15 23:28:10
○A212.64.116.1902020-02-03 → 2020-02-03 · 4 obs
● 2020-02-03 01:09:48
○ 2026-02-24 19:58:40
○ 2026-04-15 23:28:10
○A42.120.158.782016-01-24 → 2016-01-24 · 4 obs
● 2016-01-24 17:39:38
○ 2017-01-10 07:46:30
○ 2026-04-15 23:28:10
○A58.96.181.322015-08-08 → 2015-08-08 · 3 obs
○ 2026-02-24 19:58:40
○ 2026-04-15 23:28:10
○CNAMEns.wangguai.com2015-08-08 → 2015-08-08 · 3 obs
○ 2016-01-24 17:39:38
○ 2026-04-15 23:28:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net... | - |
| 51zan.com | dns27.hichina.com, dns28.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.39
NS records: dns27.hichina.com, dns28.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51zan.com (unsigned zone)
⏱️ Timing
Total: 722ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns27.hichina.com, dns28.hichina.com |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mail.qq.com ~all |
| SOA | 1 | dns27.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns27.hichina.com, dns27.hichina.com, dns27.hichina.com...)
Analysis
Name Servers
51zan.com is delegated to two name servers dns27.hichina.com and dns28.hichina.com.
51zan.com shares the same name server setup as other domains, for instance yzwxedu.com, zntd.com.cn, firstelite.net, sezzna.com and gcb365.com.
51zan.com at least partially shares name servers with other domains, for instance duduchuanqi.net, 72hold.com, dadida.com, musicvideo.cn and qilan.cn.
these name servers are often used together with ns1.alidns.com, ns2.alidns.com, expirens3.hichina.com and expirens4.hichina.com.
Host names with nine IP numbers:
dns27.hichina.com points to: 2408:4009:501::35, 39.96.153.39, 39.96.153.59, 47.118.199.199, 47.118.199.219, 120.76.107.39, 120.76.107.59, 139.224.142.99 and 139.224.142.109.
dns28.hichina.com points to: 2408:4009:501::36, 39.96.153.37, 39.96.153.62, 47.118.199.197, 47.118.199.221, 120.76.107.37, 120.76.107.62, 139.224.142.102 and 139.224.142.107.
Mail Servers
Two mail servers handle 51zan.com: mxbiz1.qq.com and mxbiz2.qq.com.
51zan.com shares the same mail server setup as other domains, for instance caestudio.com, lupaworld.com, singse.com, sundomedia.com.cn and rvrnwheel.com.
51zan.com shares some mail servers with other domains, at least partially, for instance chinacti.cn, freesat.cn, gzno.com, yinghecloud.com and nbkingbon.com.