ctbc.com.tw - robtex.com
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ctbc.com.tw
| DNSSEC | ⚠️ Not signed | ||||||
| A | 108.171.254.43🇺🇸 Amazon | ||||||
| NS | ns2.dns-diy.com ⭐ | ||||||
| A | 240e:d9:c200:1::2🇨🇳 CHINANET-SCIDC-AS-AP | ||||||
| A | 61.172.183.73🇨🇳 CHINANET-SHANGHAI-MAN | ||||||
| PTR | ip-61-172-183-73.defastlink.net | ||||||
| A | 211.149.230.100🇨🇳 CHINANET-SCIDC-AS-AP | ||||||
| PTR | ip-211-149-230-100.defastlink.net | ||||||
| NS | ns1.dns-diy.com | ||||||
| A | 240e:d9:c200::2🇨🇳 CHINANET-SCIDC-AS-AP | ||||||
| A | 60.247.150.254🇨🇳 CHINANET-SCIDC-AS-AP | ||||||
| PTR | ip-60-247-150-254.defastlink.net | ||||||
| A | 118.123.249.114🇨🇳 CHINANET-SCIDC-AS-AP | ||||||
| PTR | ip-118-123-249-114.defastlink.net | ||||||
| A | 118.123.253.132🇨🇳 CHINANET-SCIDC-AS-AP | ||||||
| PTR | ip-118-123-253-132.defastlink.net | ||||||
| MX | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| TXT | v=spf1 include:spf.mail.qq.com ~all | ||||||
| SOA | ns2.dns-diy.comdnsconct@myhostadmin.net 2025-06-12 #1 | ||||||
com.tw
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.twnic.net.tw ⭐ 🔒 | ||||||
| SOA | a.twnic.net.twsnw@twnic.net.tw serial=2006328728 | ||||||
Up
mail.ctbc.com.tw |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
○NS(root)2015-05-29 → 2019-11-26 · 3 obs
● 2019-11-26 07:55:54
○ 2026-02-16 06:36:56
●NSns1.dns-diy.com2026-02-16 → 2026-02-16 · 2 obs
● 2026-02-16 06:36:56
●NSns2.dns-diy.com2026-02-16 → 2026-02-16 · 2 obs
● 2026-02-16 06:36:56
○MXmail.ctbc.com.tw2015-05-29 → 2016-11-11 · 4 obs
● 2016-11-11 02:12:20
○ 2019-11-26 07:55:54
○ 2026-02-16 06:36:56
●MXmxbiz1.qq.com2019-11-26 → 2026-02-16 · 3 obs
● 2019-11-26 07:55:54
● 2026-02-16 06:36:56
●MXmxbiz2.qq.com2019-11-26 → 2026-02-16 · 3 obs
● 2019-11-26 07:55:54
● 2026-02-16 06:36:56
●A108.171.254.432015-05-29 → 2026-02-16 · 2 obs
● 2026-02-16 06:36:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | b.dns.tw, g.dns.tw, e.dns.tw, c.dns.tw... | - |
| ctbc.com.tw | ns2.dns-diy.com, ns1.dns-diy.com | - |
✅ Authoritative Response
Server: 118.123.253.132
NS records: ns2.dns-diy.com, ns1.dns-diy.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctbc.com.tw (unsigned zone)
⏱️ Timing
Total: 2705ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 108.171.254.43 |
| NS | 2 | ns1.dns-diy.com, ns2.dns-diy.com |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mail.qq.com ~all |
| SOA | 1 | ns2.dns-diy.com dnsconct.myhostadmin.net |
AI analysis
ctbc.com.tw is a parent of mail.ctbc.com.tw.
ctbc.com.tw points to a single IP number: 108.171.254.43.
Delegation for ctbc.com.tw rests with two name servers, ns1.dns-diy.com and ns2.dns-diy.com.
ctbc.com.tw shares the same name server setup as other domains, including nb-dh.com, best-lifes.com, ihuaban.com, degson.ca and 6288.cn.
ctbc.com.tw at least partially shares name servers with other domains, for instance sun-young.com, xsti.net, xindelw.com, zgww.com and anlu.mobi.
these name servers are often used with ns1.35.net, ns2.35.net, ns3.35.net, ns4.35.net, ns3.dns-diy.com, ns4.dns-diy.com, ns5.myhostadmin.net and ns6.myhostadmin.net.
Host names with four IP numbers: ns1.dns-diy.com points to 240e:d9:c200::2, 60.247.150.254, 118.123.249.114 and 118.123.253.132. Host names with three IP numbers: ns2.dns-diy.com points to 240e:d9:c200:1::2, 61.172.183.73 and 211.149.230.100.
ctbc.com.tw is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
ctbc.com.tw uses the same mail server configuration as other domains, such as qupeiyin.com, youmi.co.com, yimiguoji.com, qudian.com and exportauto.cn.
ctbc.com.tw shares mail servers with other domains, at least partially, for instance 7xz.com and qhyy.org.