open21.top - robtex.com
open21.top
top
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.zdnscloud.com ⭐ | ||||||
| NS | a.zdnscloud.cn | ||||||
| NS | b.zdnscloud.cn | ||||||
| NS | c.zdnscloud.com | ||||||
| NS | d.zdnscloud.com | ||||||
| NS | e.zdnscloud.cn ⚠️ Not in parent delegation | ||||||
| NS | f.zdnscloud.cn | ||||||
| NS | g.zdnscloud.com ⚠️ Not in zone NS records | ||||||
| NS | i.zdnscloud.cn | ||||||
| NS | j.zdnscloud.com | ||||||
| TXT | 2026-04-14_16:05:01 | ||||||
| SOA | a.zdnscloud.comtd_dns_gtld@knet.cn serial=1395536309 | ||||||
Subdomains
pnl.open21.top |
Same first word
open21.top |
Similar names
DNS History
2 records (2 active, 0 former)
●NSdell.ns.cloudflare.com2026-04-05 → 2026-04-14 · 2 obs
● 2026-04-14 08:24:18
●NSviddy.ns.cloudflare.com2026-04-05 → 2026-04-14 · 2 obs
● 2026-04-14 08:24:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| top | c.zdnscloud.com, f.zdnscloud.cn, a.zdnscloud.cn, g.zdnscloud.com... | 8 records |
| open21.top | dell.ns.cloudflare.com, viddy.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.195.99
NS records: dell.ns.cloudflare.com, viddy.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for open21.top (unsigned zone)
⏱️ Timing
Total: 292ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dell.ns.cloudflare.com, viddy.ns.cloudflare.com |
| SOA | 1 | dell.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (c.zdnscloud.com, f.zdnscloud.cn, a.zdnscloud.cn...)
Analysis
Hierarchy
open21.top is the parent of pnl.open21.top.
Name Servers
open21.top is delegated to two name servers dell.ns.cloudflare.com and viddy.ns.cloudflare.com.
open21.top shares the same name server setup as other domains, for instance zoomersky.online, speedgamer.top, maxservice.info, gosocial.run and nusantaracode.co.id.
open21.top at least partially shares name servers with other domains, for instance unyq.net, crockid.com, wus-whovapp.com, txtcbz.com and consultoriaeservicosdeti.com.
these name servers are commonly used alongside jule.ns.cloudflare.com.
Host names with six IP numbers:
Host name dell.ns.cloudflare.com points to: 2606:4700:50::adf5:3a5e, 2803:f800:50::6ca2:c05e, 2a06:98c1:50::ac40:205e, 108.162.192.94, 172.64.32.94 and 173.245.58.94.
Host name viddy.ns.cloudflare.com points to: 2606:4700:58::a29f:2c63, 2803:f800:50::6ca2:c363, 2a06:98c1:50::ac40:2363, 108.162.195.99, 162.159.44.99 and 172.64.35.99.