21ms.com - robtex.com
21ms.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.135.180.90🇨🇳 CHINANET-BACKBONE219.128.0.0/13 China Telecom Global Limited | ||||||
| NS | dns1.hichina.com ⭐ | ||||||
| A | 2408:4009:501::9🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.43🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.63🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.203🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.213🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.43🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.63🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.113🇨🇳 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 | 139.224.142.123🇨🇳 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 | dns2.hichina.com | ||||||
| A | 2408:4009:501::10🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.44🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.54🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.204🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.214🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.44🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.54🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.114🇨🇳 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 | 139.224.142.124🇨🇳 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 | mail.21ms.com ⭐ | ||||||
| A | 219.135.180.90🇨🇳 CHINANET-BACKBONE219.128.0.0/13 China Telecom Global Limited | ||||||
| SOA | dns1.hichina.comhostmaster@hichina.com 2026-06-04 #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=1784492797 | ||||||
Subdomains
mail.21ms.com |
Same first word
21ms.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSdns1.hichina.com2015-05-22 → 2026-07-19 · 2 obs
● 2026-07-19 20:33:14
●NSdns2.hichina.com2015-05-22 → 2026-07-19 · 2 obs
● 2026-07-19 20:33:14
●MXmail.21ms.com2015-05-22 → 2026-07-19 · 2 obs
● 2026-07-19 20:33:14
○A121.8.143.1642015-05-22 → 2017-03-31 · 4 obs
● 2017-03-31 09:29:02
○ 2020-04-11 23:55:10
○ 2026-07-19 20:33:14
●A219.135.180.902020-04-11 → 2026-07-19 · 3 obs
● 2020-04-11 23:55:10
● 2026-07-19 20:33:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21ms.com | dns2.hichina.com, dns1.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.43
NS records: dns2.hichina.com, dns1.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21ms.com (unsigned zone)
⏱️ Timing
Total: 1083ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.135.180.90 |
| NS | 2 | dns2.hichina.com, dns1.hichina.com |
| MX | 1 | mail.21ms.com (pri: 10) |
| SOA | 1 | dns1.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns2.hichina.com, dns2.hichina.com, dns2.hichina.com...)
Analysis
Hierarchy
21ms.com is the parent zone for mail.21ms.com.
IP Addresses
21ms.com points to a single IP number: 219.135.180.90.
Host names like mail.21ms.com are further examples that share IP numbers with 21ms.com.
Name Servers
Two name servers handle the delegation for 21ms.com: dns1.hichina.com and dns2.hichina.com.
21ms.com shares its name server setup with other domains, including hsaaa.com, taomaple.com, citywear.net and two others.
21ms.com has some name servers in common with other domains such as myplog.cn, aipix.cn and sgmining.com
These name servers are regularly seen alongside ns1.alidns.com and ns2.alidns.com as name servers.
Host names with 9 IP numbers:
dns1.hichina.com resolves to 39.96.153.43, 39.96.153.63 and 47.118.199.203 among others, with 6 other IP addresses in total.
dns2.hichina.com resolves to 39.96.153.44, 39.96.153.54 and 47.118.199.204 among others, with 6 other IP addresses in total.
Mail Servers
21ms.com has one mail server: mail.21ms.com.
mail.21ms.com carries a single IP number, which is 219.135.180.90.