gtctw.com.tw - robtex.com

gtctw.com.tw

DNSSEC⚠️ Not signed
A211.20.64.34🇹🇼 HiNet211.20.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.
PTRemail.gtcm2m.com
PTRemail.asec.com.tw
PTRemail.gtctw.com.tw
NSrouter.gtctw.com.tw ⭐ ⚠️ Not in parent delegation
NSdns1.gtctw.com.tw ⚠️ Not in zone NS records
NSdns2.gtctw.com.tw ⚠️ Not in zone NS records
NSdns3.gtctw.com.tw ⚠️ Not in zone NS records
NSdns4.gtctw.com.tw ⚠️ Not in zone NS records
NSdns5.gtctw.com.tw ⚠️ Not in zone NS records
MXemail.gtctw.com.tw ⭐
A211.20.64.34🇹🇼 HiNet211.20.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.
PTRemail.gtcm2m.com
PTRemail.asec.com.tw
PTRemail.gtctw.com.tw
TXTv=spf1 ip4:211.72.135.187/32 ip4:211.20.64.34/32 mx:email.gtctw.com.tw -all
SOArouter.gtctw.com.twroot@gtctw.com.tw 2001-01-01 #1

com.tw

DNSSEC⚠️ Not signed
NSa.twnic.net.tw ⭐
SOAa.twnic.net.twsnw@twnic.net.tw serial=2006345115
WOT: SAFE (58/100)

Subdomains

email.gtctw.com.tw

Same first word

gtctw.com
gtctw.com.tw

Similar names

wgttc.com
ttcgw.com.cn
ttcgw.com
twgct.com
ttgcw.com
cgttw.com

DNS History

9 records (8 active, 1 former)

20162017201820192020202120222023202420252026NSdns1.gtctw.com.twdns2.gtctw.com.twdns3.gtctw.com.twdns4.gtctw.com.twdns5.gtctw.com.twrouter.gtctw.com.twMXemail.gtctw.com.twml03.gtctw.com.twA211.20.64.34
●NSdns1.gtctw.com.tw2026-02-15 → 2026-04-25 · 3 obs
○ 2015-08-17 00:10:52
● 2026-02-15 12:55:10
● 2026-04-25 00:03:54
●NSdns2.gtctw.com.tw2026-02-15 → 2026-04-25 · 3 obs
○ 2015-08-17 00:10:52
● 2026-02-15 12:55:10
● 2026-04-25 00:03:54
●NSdns3.gtctw.com.tw2026-02-15 → 2026-04-25 · 3 obs
○ 2015-08-17 00:10:52
● 2026-02-15 12:55:10
● 2026-04-25 00:03:54
●NSdns4.gtctw.com.tw2026-02-15 → 2026-04-25 · 3 obs
○ 2015-08-17 00:10:52
● 2026-02-15 12:55:10
● 2026-04-25 00:03:54
●NSdns5.gtctw.com.tw2026-02-15 → 2026-04-25 · 3 obs
○ 2015-08-17 00:10:52
● 2026-02-15 12:55:10
● 2026-04-25 00:03:54
●NSrouter.gtctw.com.tw2015-08-17 → 2026-04-25 · 2 obs
● 2015-08-17 00:10:52
● 2026-04-25 00:03:54
●MXemail.gtctw.com.tw2016-07-09 → 2026-04-25 · 3 obs
○ 2016-01-22 08:10:12
● 2016-07-09 15:01:28
● 2026-04-25 00:03:54
○MXml03.gtctw.com.tw2015-08-17 → 2016-01-22 · 4 obs
● 2015-08-17 00:10:52
● 2016-01-22 08:10:12
○ 2016-07-09 15:01:28
○ 2026-04-25 00:03:54
●A211.20.64.342015-08-17 → 2026-04-25 · 2 obs
● 2015-08-17 00:10:52
● 2026-04-25 00:03:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
twa.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw...-
gtctw.com.twdns4.gtctw.com.tw, dns3.gtctw.com.tw, dns5.gtctw.com.tw, dns2.gtctw.com.tw...5 records

✅ Authoritative Response

Server:211.20.64.34

NS records: dns4.gtctw.com.tw, dns3.gtctw.com.tw, dns5.gtctw.com.tw, dns2.gtctw.com.tw, dns1.gtctw.com.tw

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gtctw.com.tw (unsigned zone)

⏱️ Timing

Total: 1041ms | Queries: -

📄 Records

TypeCountSample Data
A1211.20.64.34
NS1router.gtctw.com.tw
MX1email.gtctw.com.tw (pri: 1)
TXT1v=spf1 ip4:211.72.135.187/32 ip4:211.20.
SOA1router.gtctw.com.tw root.gtctw.com.tw

📌 Glue Records Collected

Total: 5

In-bailiwick: 5 (dns5.gtctw.com.tw, dns4.gtctw.com.tw, dns3.gtctw.com.tw...)

Analysis

Hierarchy

The parent of email.gtctw.com.tw is gtctw.com.tw.

IP Addresses

gtctw.com.tw points to IP number: 211.20.64.34.

Other host names such as email.gtcm2m.com, email.gtctw.com.tw, gtcm2m.com, email.asec.com.tw and dns2.asec.com.tw share IPs with gtctw.com.tw.

Name Servers

gtctw.com.tw is delegated to six name servers: dns1.gtctw.com.tw, dns2.gtctw.com.tw, dns3.gtctw.com.tw, dns4.gtctw.com.tw, dns5.gtctw.com.tw and router.gtctw.com.tw.

Mail Servers

gtctw.com.tw is handled by a single mail server, email.gtctw.com.tw.

email.gtctw.com.tw points to a single IP: 211.20.64.34.