21online.com.tw - robtex.com
21online.com.tw
com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.twnic.net.tw ⭐ ⚠️ Not in parent delegation | ||||||
| NS | anytld.apnic.net ⚠️ Not in parent delegation | ||||||
| NS | b.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | c.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | d.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | e.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | f.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | g.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| NS | h.dns.tw ⚠️ Not in parent delegation | ||||||
| NS | h.twnic.net.tw ⚠️ Not in parent delegation | ||||||
| SOA | a.twnic.net.twsnw@twnic.net.tw serial=2006349298 | ||||||
Same first word
21online.co |
21online.net |
21online.lat |
21online.tw |
21online.sk |
21online.com.tw |
21online.ca |
21online.de |
21online.com |
21online.app |
21online.ru |
21online.co.za |
Similar names
12online.de |
online12.ru |
12online.nl |
online12.de |
12online.ru |
online21.org |
online21.com |
online12.com |
online21.com.au |
online21.de |
12online.com |
12online.com.cn |
DNS History
3 records (3 active, 0 former)
●NSamanda.ns.cloudflare.com2026-05-05 → 2026-05-11 · 2 obs
● 2026-05-11 12:00:34
●NSvick.ns.cloudflare.com2026-05-05 → 2026-05-11 · 2 obs
● 2026-05-11 12:00:34
●A122.147.134.1042026-05-05 → 2026-05-11 · 2 obs
● 2026-05-11 12:00:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | c.dns.tw, b.dns.tw, d.dns.tw, f.dns.tw... | - |
| com.tw | c.twnic.net.tw, b.twnic.net.tw, g.twnic.net.tw, e.twnic.net.tw... | 17 records |
| 21online.com.tw | amanda.ns.cloudflare.com, vick.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.244
NS records: amanda.ns.cloudflare.com, vick.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21online.com.tw (unsigned zone)
⏱️ Timing
Total: 1469ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 122.147.134.104 |
| NS | 2 | amanda.ns.cloudflare.com, vick.ns.cloudflare.com |
| SOA | 1 | amanda.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 17
Out-of-bailiwick: 17 (h.twnic.net.tw, g.twnic.net.tw, f.twnic.net.tw...)
Analysis
IP Addresses
21online.com.tw points to a single IP number: 122.147.134.104.
Other host names like rms.21online.tw and 21online.tw share IP numbers with 21online.com.tw.
Name Servers
21online.com.tw is delegated to two name servers: amanda.ns.cloudflare.com and vick.ns.cloudflare.com.
21online.com.tw shares the same name server setup as other domains, for example ceeek.com, svetivid.com, rpupu.com, printsok.com and marketplaze.id.
21online.com.tw at least partially shares name servers with other domains, for instance weareshift.agency, celebrow.com, globaldessert.net, frieze.info and planthirenorthernireland.com.
These name servers are commonly used with harmony.ns.cloudflare.com, etta.ns.cloudflare.com and tosana.ns.cloudflare.com.
Host names with six IP numbers:
amanda.ns.cloudflare.com points to: 2606:4700:50::adf5:3a3f, 2803:f800:50::6ca2:c03f, 2a06:98c1:50::ac40:203f, 108.162.192.63, 172.64.32.63 and 173.245.58.63; vick.ns.cloudflare.com points to: 2606:4700:58::adf5:3bf4, 2803:f800:50::6ca2:c1f4, 2a06:98c1:50::ac40:21f4, 108.162.193.244, 172.64.33.244 and 173.245.59.244.