21cnweb.com - robtex.com
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21cnweb.com
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=1771291435 | ||||||
Up
www.21cnweb.com |
Same first word
21cnweb.com |
DNS History
12 records (6 active, 6 former)
●NSaspen.ns.cloudflare.com2026-02-17 → 2026-02-19 · 3 obs
● 2026-02-17 01:31:26
● 2026-02-19 03:03:06
○NSdns.bizcn.com2015-06-01 → 2016-03-25 · 4 obs
● 2016-03-25 14:39:02
○ 2026-02-17 01:31:26
○ 2026-02-19 03:03:06
●NSnash.ns.cloudflare.com2026-02-17 → 2026-02-19 · 3 obs
● 2026-02-17 01:31:26
● 2026-02-19 03:03:06
○NSns1.4everdns.com2015-06-01 → 2017-05-30 · 4 obs
● 2017-05-30 14:20:56
○ 2026-02-17 01:31:26
○ 2026-02-19 03:03:06
○NSns2.4everdns.com2015-06-01 → 2017-05-30 · 4 obs
● 2017-05-30 14:20:56
○ 2026-02-17 01:31:26
○ 2026-02-19 03:03:06
○NSns5.cnmsn.net2015-06-01 → 2017-05-30 · 6 obs
○ 2015-10-20 18:15:16
○ 2016-03-25 14:39:02
● 2017-05-30 14:20:56
○ 2026-02-17 01:31:26
○ 2026-02-19 03:03:06
○NSns6.cnmsn.net2015-06-01 → 2017-05-30 · 6 obs
○ 2015-10-20 18:15:16
○ 2016-03-25 14:39:02
● 2017-05-30 14:20:56
○ 2026-02-17 01:31:26
○ 2026-02-19 03:03:06
●A104.21.29.1182026-02-17 → 2026-02-19 · 3 obs
● 2026-02-17 01:31:26
● 2026-02-19 03:03:06
○A121.42.93.1342015-06-01 → 2016-03-25 · 4 obs
● 2016-03-25 14:39:02
○ 2026-02-17 01:31:26
○ 2026-02-19 03:03:06
●A172.67.148.2482026-02-17 → 2026-02-19 · 3 obs
● 2026-02-17 01:31:26
● 2026-02-19 03:03:06
●A2606:4700:3033::6815:1d762026-02-17 → 2026-02-19 · 3 obs
● 2026-02-17 01:31:26
● 2026-02-19 03:03:06
●A2606:4700:3034::ac43:94f82026-02-17 → 2026-02-19 · 3 obs
● 2026-02-17 01:31:26
● 2026-02-19 03:03:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21cnweb.com | nash.ns.cloudflare.com, aspen.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server: 108.162.194.109
NS records: nash.ns.cloudflare.com, aspen.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21cnweb.com (unsigned zone)
⏱️ Timing
Total: 398ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.148.248, 104.21.29.118 |
| AAAA | 2 | 2606:4700:3033::6815:1d76, 2606:4700:3034::ac43:94f8 |
| NS | 2 | aspen.ns.cloudflare.com, nash.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | aspen.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (nash.ns.cloudflare.com, nash.ns.cloudflare.com, nash.ns.cloudflare.com...)
AI analysis
21cnweb.com is a parent of www.21cnweb.com.
21cnweb.com resolves to four IPs: 2606:4700:3033::6815:1d76, 2606:4700:3034::ac43:94f8, 104.21.29.118 and 172.67.148.248.
Other host names such as ccyibiao.com, darkhorseventures.com, guadalupebarrientos.com, octheme.pro and mail.nrw.fouta-tunisia.com share IP numbers with 21cnweb.com.
21cnweb.com is delegated to two name servers: aspen.ns.cloudflare.com and nash.ns.cloudflare.com.
21cnweb.com uses the same name server setup as other domains, including tosfocus.com, hongruisw.com, sh12329.com, bjhthf.com and dgfangyuan.com.
At least part of the name servers for 21cnweb.com are shared with other domains, for instance h635.com, aligo.com.co, indyscale.com, rcpm.ca and smartlinktelecom.com.
These name servers are often used together with gordon.ns.cloudflare.com, henry.ns.cloudflare.com and arya.ns.cloudflare.com.
Host names with six IP numbers:
aspen.ns.cloudflare.com points to: 2606:4700:50::a29f:266d, 2803:f800:50::6ca2:c26d, 2a06:98c1:50::ac40:226d, 108.162.194.109, 162.159.38.109 and 172.64.34.109.
nash.ns.cloudflare.com points to: 2606:4700:58::adf5:3bd1, 2803:f800:50::6ca2:c1d1, 2a06:98c1:50::ac40:21d1, 108.162.193.209, 172.64.33.209 and 173.245.59.209.