yyzb.tech - robtex.com
yyzb.tech
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns21.hichina.com ⭐ | ||||||
| A | 2408:4009:501::29🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.40🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.60🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.200🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.220🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.40🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.60🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.100🇨🇳 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 | 139.224.142.110🇨🇳 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 | dns22.hichina.com | ||||||
| A | 2408:4009:501::30🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.38🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.61🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.198🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.222🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.38🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.61🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.98🇨🇳 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 | 139.224.142.108🇨🇳 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 | mx1.em.dingtalk.com ⭐ | ||||||
| MX | mx2.em.dingtalk.com(10) | ||||||
| MX | mx3.em.dingtalk.com(15) | ||||||
| TXT | v=spf1 include:spf.em.dingtalk.com -all | ||||||
| SOA | dns21.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
tech
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1785867536 | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSdns21.hichina.com2026-05-11 → 2026-08-04 · 2 obs
● 2026-08-04 18:22:52
●NSdns22.hichina.com2026-05-11 → 2026-08-04 · 2 obs
● 2026-08-04 18:22:52
●MXmx1.em.dingtalk.com2026-05-11 → 2026-08-04 · 2 obs
● 2026-08-04 18:22:52
●MXmx2.em.dingtalk.com2026-05-11 → 2026-08-04 · 2 obs
● 2026-08-04 18:22:52
●MXmx3.em.dingtalk.com2026-05-11 → 2026-08-04 · 2 obs
● 2026-08-04 18:22:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tech | ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info | 8 records |
| yyzb.tech | dns21.hichina.com, dns22.hichina.com | - |
✅ Authoritative Response
Server:39.96.153.38
NS records: dns21.hichina.com, dns22.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for yyzb.tech (unsigned zone)
⏱️ Timing
Total: 1213ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns21.hichina.com, dns22.hichina.com |
| MX | 3 | mx2.em.dingtalk.com (pri: 10), mx1.em.dingtalk.com (pri: 5)... |
| TXT | 1 | v=spf1 include:spf.em.dingtalk.com -all |
| SOA | 1 | dns21.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.com, ns01.trs-dns.net...)
Analysis
Name Servers
yyzb.tech has two authoritative name servers — dns21.hichina.com and dns22.hichina.com.
yyzb.tech shares its name server setup with other domains, including nbsr.cn, amazingsports.cn, 31640.com and two others.
The name servers for yyzb.tech are at least partly shared with other domains such as idazhe.com, divoom.com, bunzoo.com and hiseeu.com.
It is common to see these name servers used together with name servers ns1.alidns.com and ns2.alidns.com.
Host names with 9 IP numbers:
dns21.hichina.com points to 39.96.153.40, 39.96.153.60, 47.118.199.200 and 6 other IP addresses.
dns22.hichina.com points to 39.96.153.38, 39.96.153.61, 47.118.199.198 and 6 other IP addresses.
Mail Servers
yyzb.tech has three mail servers: mx1.em.dingtalk.com, mx2.em.dingtalk.com and mx3.em.dingtalk.com.
yyzb.tech shares mail servers — at least in part — with other domains, including dnake-ish.com, lexs-tech.com, hongxuchina.com and two others.
These mail servers are frequently used alongside mail servers mx1.qiye.aliyun.com, mxbiz1.qq.com, mxbiz2.qq.com and 4 other.