tdccorp.com.tw - robtex.com
tdccorp.com.tw
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=2006338152 | ||||||
Subdomains
Same first word
tdccorp.com.tw |
Similar names
DNS History
14 records (6 active, 8 former)
○NSisa.tdcdps_domain.com.tw2015-07-23 → 2015-12-20 · 4 obs
● 2015-12-20 10:14:36
○ 2016-04-16 11:55:20
○ 2026-03-29 17:38:56
●NSns1.tdccorp.com.tw2015-07-23 → 2026-03-29 · 2 obs
● 2026-03-29 17:38:56
●NSns2.tdccorp.com.tw2015-07-23 → 2026-03-29 · 2 obs
● 2026-03-29 17:38:56
○NSns3.tdccorp.com.tw2015-07-23 → 2015-12-20 · 4 obs
● 2015-12-20 10:14:36
○ 2016-04-16 11:55:20
○ 2026-03-29 17:38:56
●NStdcdns2016-04-16 → 2026-03-29 · 20 obs
● 2016-04-16 11:55:20
○ 2016-05-12 22:03:20
○ 2016-07-02 20:21:52
● 2017-01-04 15:58:08
○ 2017-06-12 21:45:38
○ 2017-07-23 16:23:40
● 2017-08-18 02:57:06
○ 2017-10-18 02:19:42
● 2017-11-23 12:10:26
○ 2018-01-20 22:41:58
○ 2018-03-18 01:37:46
● 2018-04-09 09:44:32
● 2018-05-25 14:27:42
○ 2018-06-18 06:49:12
● 2018-07-13 09:41:46
○ 2018-09-03 22:08:28
○ 2026-02-17 04:35:44
● 2026-03-29 17:38:54
● 2026-03-29 17:38:56
○NStdcdns022016-05-12 → 2026-02-17 · 19 obs
● 2016-05-12 22:03:20
● 2016-07-02 20:21:52
○ 2017-01-04 15:58:08
● 2017-06-12 21:45:38
● 2017-07-23 16:23:40
○ 2017-08-18 02:57:06
● 2017-10-18 02:19:42
○ 2017-11-23 12:10:26
● 2018-01-20 22:41:58
● 2018-03-18 01:37:46
○ 2018-04-09 09:44:32
○ 2018-05-25 14:27:42
● 2018-06-18 06:49:12
○ 2018-07-13 09:41:46
● 2018-09-03 22:08:28
● 2026-02-17 04:35:44
○ 2026-03-29 17:38:54
○ 2026-03-29 17:38:56
○MXmx1.tdccorp.com.tw2015-07-23 → 2015-12-20 · 4 obs
● 2015-12-20 10:14:36
○ 2016-04-16 11:55:20
○ 2026-03-29 17:38:56
○MXmx2.tdccorp.com.tw2015-07-23 → 2015-12-20 · 4 obs
● 2015-12-20 10:14:36
○ 2016-04-16 11:55:20
○ 2026-03-29 17:38:56
○MXmx3.tdccorp.com.tw2015-07-23 → 2015-12-20 · 4 obs
● 2015-12-20 10:14:36
○ 2016-04-16 11:55:20
○ 2026-03-29 17:38:56
●MXmx4.tdccorp.com.tw2015-07-23 → 2026-03-29 · 6 obs
● 2015-12-20 10:14:36
○ 2016-04-16 11:55:20
○ 2018-09-05 18:37:14
● 2026-02-17 04:35:44
● 2026-03-29 17:38:56
●MXmx5.tdccorp.com.tw2015-07-23 → 2026-03-29 · 2 obs
● 2026-03-29 17:38:56
○MXmx6.tdccorp.com.tw2015-07-23 → 2018-09-05 · 4 obs
● 2018-09-05 18:37:14
○ 2026-02-17 04:35:44
○ 2026-03-29 17:38:56
●MXtdccorp-com-tw.mail.protection.outlook.com2026-02-17 → 2026-03-29 · 3 obs
● 2026-02-17 04:35:44
● 2026-03-29 17:38:56
○A211.74.144.2332015-07-23 → 2015-12-20 · 4 obs
● 2015-12-20 10:14:36
○ 2016-04-16 11:55:20
○ 2026-03-29 17:38:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | - |
| tdccorp.com.tw | ns1.tdccorp.com.tw, ns2.tdccorp.com.tw | 2 records |
✅ Authoritative Response
Server:139.175.250.93
NS records: ns1.tdccorp.com.tw, ns2.tdccorp.com.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tdccorp.com.tw (unsigned zone)
⏱️ Timing
Total: 1113ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns2.tdccorp.com.tw, ns1.tdccorp.com.tw |
| MX | 3 | tdccorp-com-tw.mail.protection.outlook.c, mx4.tdccorp.com.tw (pri: 10)... |
| TXT | 4 | MS=2A0E5CDD96024F886EE28EF7A5251CA057E41, v=spf1 ip4:139.175.250.81 ip4:139.175.25... |
| SOA | 1 | tdcdns02 hostmaster |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns2.tdccorp.com.tw, ns1.tdccorp.com.tw)
Analysis
Hierarchy
tdccorp.com.tw is a parent of ns2.tdccorp.com.tw, ns1.tdccorp.com.tw, mx5.tdccorp.com.tw, idcvpn.tdccorp.com.tw and mx4.tdccorp.com.tw.
Name Servers
tdccorp.com.tw delegates to three name servers: tdcdns, ns1.tdccorp.com.tw and ns2.tdccorp.com.tw.
tdccorp.com.tw shares some name servers with other domains, for instance 20.102.66.210.in-addr.arpa, 81.250.175.139.in-addr.arpa and 84.250.175.139.in-addr.arpa.
These name servers are commonly used with the name servers tdcdns02.
Host names with a single IP:
ns1.tdccorp.com.tw points to 139.175.250.84
ns2.tdccorp.com.tw points to 139.175.250.93
Mail Servers
tdccorp.com.tw is handled by three mail servers: mx4.tdccorp.com.tw, mx5.tdccorp.com.tw and tdccorp-com-tw.mail.protection.outlook.com.
Host names with six IP numbers:
tdccorp-com-tw.mail.protection.outlook.com points to 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.
Host names with a single IP number:
mx4.tdccorp.com.tw points to 139.175.250.81.
mx5.tdccorp.com.tw points to 139.175.250.81.
Host names that point to 139.175.250.81: mx4.tdccorp.com.tw and mx5.tdccorp.com.tw.