kensystem.com.tw - robtex.com
kensystem.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.138.106.72🇹🇼 ABOVE-AS-AP103.138.106.0/24 Chief Telecom Inc. | ||||||
| NS | ns1.dns.why3s.com ⭐ | ||||||
| A | 35.236.151.41🇹🇼 Google35.236.144.0/20 | ||||||
| PTR | 41.151.236.35.bc.googleusercontent.com | ||||||
| NS | ns2.dns.why3s.com | ||||||
| A | 172.105.200.231🇯🇵 AKAMAI-LINODE-AP172.105.192.0/19 Akamai Technologies | ||||||
| PTR | 172-105-200-231.ip.linodeusercontent.com | ||||||
| NS | ns3.dns.why3s.com ⚠️ Not in parent delegation | ||||||
| A | 34.150.30.120🇭🇰 Google34.150.16.0/20 | ||||||
| PTR | 120.30.150.34.bc.googleusercontent.com | ||||||
| NS | ns4.dns.why3s.com ⚠️ Not in parent delegation | ||||||
| A | 172.105.239.245🇯🇵 AKAMAI-LINODE-AP172.105.224.0/20 Akamai Technologies | ||||||
| PTR | ns4.dns.why3s.com | ||||||
| MX | mail.kensystem.com.tw ⭐ | ||||||
| A | 61.219.118.207🇹🇼 HiNet61.219.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd. | ||||||
| PTR | mail.kensystem.com.tw | ||||||
| TXT | v=spf1 ip4:103.138.106.71 include:relay01.why3s.com ip4:103.138.106.31 +a +mx... | ||||||
| TXT | google-site-verification=iGGFSMDs7SGrEyg9hFX6yGB0wtFMrmZ6szLaH2Zq3ME | ||||||
| SOA | ns1.dns.why3s.comroot@sun6352.bestoneserver.com 2026-03-14 #1 | ||||||
com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.twnic.net.tw ⭐ | ||||||
| NS | anytld.apnic.net | ||||||
| NS | b.twnic.net.tw | ||||||
| NS | c.twnic.net.tw | ||||||
| NS | d.twnic.net.tw | ||||||
| NS | e.twnic.net.tw | ||||||
| NS | f.twnic.net.tw | ||||||
| NS | g.twnic.net.tw | ||||||
| NS | h.dns.tw | ||||||
| NS | h.twnic.net.tw | ||||||
| SOA | a.twnic.net.twsnw@twnic.net.tw serial=2006336975 | ||||||
WOT: SAFE (58/100)
Subdomains
mail.kensystem.com.tw |
Same first word
kensystem.com.tw |
kensystem.com |
Similar names
DNS History
9 records (6 active, 3 former)
●NSns1.dns.why3s.com2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 02:30:26
● 2026-03-25 01:48:28
●NSns2.dns.why3s.com2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 02:30:26
● 2026-03-25 01:48:28
●NSns3.dns.why3s.com2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 02:30:26
● 2026-03-25 01:48:28
●NSns4.dns.why3s.com2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 02:30:26
● 2026-03-25 01:48:28
○NSwebserver.kensystem.com.tw2008-05-03 → 2017-08-12 · 4 obs
● 2017-08-12 11:20:28
○ 2026-02-18 02:30:26
○ 2026-03-25 01:48:28
●MXmail.kensystem.com.tw2026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 02:30:26
● 2026-03-25 01:48:28
○MXshin.kensystem.com.tw2008-05-03 → 2008-05-03 · 3 obs
○ 2015-05-26 15:25:42
○ 2026-03-25 01:48:28
●A103.138.106.722026-02-18 → 2026-03-25 · 3 obs
● 2026-02-18 02:30:26
● 2026-03-25 01:48:28
○A61.219.118.2072015-05-26 → 2017-08-12 · 5 obs
● 2015-05-26 15:25:42
● 2017-08-12 11:20:28
○ 2026-02-18 02:30:26
○ 2026-03-25 01:48:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | g.dns.tw, e.dns.tw, a.dns.tw, c.dns.tw... | - |
| kensystem.com.tw | ns1.dns.why3s.com, ns2.dns.why3s.com | - |
✅ Authoritative Response
Server:172.105.200.231
NS records: ns1.dns.why3s.com, ns2.dns.why3s.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kensystem.com.tw (unsigned zone)
⏱️ Timing
Total: 2367ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.138.106.72 |
| NS | 4 | ns4.dns.why3s.com, ns2.dns.why3s.com... |
| MX | 1 | mail.kensystem.com.tw (pri: 0) |
| TXT | 2 | google-site-verification=iGGFSMDs7SGrEyg, v=spf1 ip4:103.138.106.71 include:relay0 |
| SOA | 1 | ns1.dns.why3s.com root.sun6352.bestonese |
Analysis
Hierarchy
The parent of mail.kensystem.com.tw is kensystem.com.tw.
IP Addresses
kensystem.com.tw points to an IP address: 103.138.106.72.
other host names include clvtw.com, ilinkyu.com, legoworks.com, yobo.com.tw and gcrc.ntu.edu.tw; they share IP numbers with kensystem.com.tw.
Name Servers
kensystem.com.tw delegates to four name servers: ns1.dns.why3s.com, ns2.dns.why3s.com, ns3.dns.why3s.com and ns4.dns.why3s.com.
kensystem.com.tw at least partially shares name servers with other domains, for instance shaanhonq.com.tw, kuangcheng.com.tw, inarch.org, noni.com.tw and fudee.org.tw.
Host names with one IP number: ns1.dns.why3s.com points to: 35.236.151.41; ns2.dns.why3s.com points to: 172.105.200.231; ns3.dns.why3s.com points to: 34.150.30.120; ns4.dns.why3s.com points to: 172.105.239.245.
Mail Servers
kensystem.com.tw is handled by a single mail server, mail.kensystem.com.tw.
The host name mail.kensystem.com.tw points to IP 61.219.118.207.