21days.cloud - robtex.com
21days.cloud
| DNSSEC | ⚠️ Not signed | ||||||
| A | 39.99.153.62🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| NS | dns13.hichina.com ⭐ | ||||||
| A | 2408:4009:501::21🇨🇳 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 | dns14.hichina.com | ||||||
| A | 2408:4009:501::22🇨🇳 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 | v=spf1 include:spf.mail.qq.com ~all | ||||||
| SOA | dns13.hichina.comhostmaster@hichina.com 2026-06-04 #13 | ||||||
cloud
| 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=1785894030 | ||||||
Subdomains
api.21days.cloud |
Same first word
21days.com.cn |
21days.ai |
21days.net |
21days.co.nz |
21days.cloud |
21days.it |
21days.cc |
21days.com |
21days.ch |
21days.de |
21days.at |
Similar names
DNS History
5 records (5 active, 0 former)
●NSdns13.hichina.com2026-05-14 → 2026-08-05 · 2 obs
● 2026-08-05 01:49:36
●NSdns14.hichina.com2026-05-14 → 2026-08-05 · 2 obs
● 2026-08-05 01:49:36
●A39.99.153.622026-05-14 → 2026-08-05 · 2 obs
● 2026-08-05 01:49:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cloud | ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info | - |
| 21days.cloud | dns13.hichina.com, dns14.hichina.com | - |
✅ Authoritative Response
Server:139.224.142.121
NS records: dns13.hichina.com, dns14.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21days.cloud (unsigned zone)
⏱️ Timing
Total: 4173ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 39.99.153.62 |
| NS | 2 | dns13.hichina.com, dns14.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 | dns13.hichina.com hostmaster.hichina.com |
Analysis
Hierarchy
21days.cloud is the parent zone for api.21days.cloud.
IP Addresses
21days.cloud has exactly one IP address — 39.99.153.62.
www.shenbi.ink and shenbi.ink, along with other host names, share IP addresses with 21days.cloud.
Name Servers
The NS records for 21days.cloud delegate to dns13.hichina.com and dns14.hichina.com.
The name server configuration of 21days.cloud is shared with other domains, for instance 99steel.cn, hrbrczp.com, detc.com.cn and two others.
21days.cloud partially shares its NS delegation with several other domains, including zhoumolehuo.com, iosoon.com, rschip.net and two others.
The name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com are often found in use alongside these name servers.
Hosts with 9 IP addresses each:
dns13.hichina.com maps to 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 additional IP addresses.
dns14.hichina.com maps to 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 additional IP addresses.
Mail Servers
21days.cloud uses two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.
The mail server setup of 21days.cloud matches that of other domains such as lemoe.cn.cdn.cloudflare.net, hohofast.com, baicheng100.com and two others.
At least a portion of 21days.cloud's mail servers are also used by other domains, for example zslvyou.com.