jjfocus.com.tw - robtex.com
jjfocus.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns49.cx901.com ⚠️ Not in zone NS records | ||||||
| A | 43.254.17.21🇹🇼 YUANJHEN-TW43.254.16.0/23 Taiwan Network Information Center 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist. | ||||||
| PTR | 43-254-17-21.static.ip.net.tw | ||||||
| NS | ns50.cx901.com ⚠️ Not in zone NS records | ||||||
| A | 43.254.17.22🇹🇼 YUANJHEN-TW43.254.16.0/23 Taiwan Network Information Center 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist. | ||||||
| PTR | 43-254-17-22.static.ip.net.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=2006392397 | ||||||
PTR for
Same first word
jjfocus.com.tw |
DNS History
6 records (2 active, 4 former)
○NScns1.net-chinese.com.tw2018-07-27 → 2018-07-27 · 3 obs
● 2018-07-27 00:12:56
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
○NScns2.net-chinese.com.tw2018-07-27 → 2018-07-27 · 3 obs
● 2018-07-27 00:12:56
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
●NSns49.cx901.com2026-02-26 → 2026-08-16 · 3 obs
○ 2018-07-27 00:12:56
● 2026-02-26 18:24:08
● 2026-08-16 20:20:12
● 2026-02-26 18:24:08
● 2026-08-16 20:20:12
●NSns50.cx901.com2026-02-26 → 2026-08-16 · 3 obs
○ 2018-07-27 00:12:56
● 2026-02-26 18:24:08
● 2026-08-16 20:20:12
● 2026-02-26 18:24:08
● 2026-08-16 20:20:12
○MXmail.jjfocus.com.tw2018-07-27 → 2018-07-27 · 3 obs
● 2018-07-27 00:12:56
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
○A118.163.170.122018-07-27 → 2018-07-27 · 3 obs
● 2018-07-27 00:12:56
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
○ 2026-02-26 18:24:08
○ 2026-08-16 20:20:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | h.dns.tw, f.dns.tw, d.dns.tw, a.dns.tw... | - |
| jjfocus.com.tw | ns50.cx901.com, ns49.cx901.com | - |
✅ Authoritative Response
Server:43.254.17.21
NS records: ns50.cx901.com, ns49.cx901.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jjfocus.com.tw (unsigned zone)
⏱️ Timing
Total: 1177ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
jjfocus.com.tw is served by two delegated name servers, ns49.cx901.com and ns50.cx901.com.
jjfocus.com.tw shares its NS records with other domains, for example sainfun.com.tw, qijun.com.tw, biolion.com.tw and two others.
ns49.cx901.com → 43.254.17.21 and ns50.cx901.com → 43.254.17.22: one IP number per host name.