`tcmastersgroup.com`

DNSSEC	⚠️ Not signed
NS	`localhost@` ⭐
NS	`ns1.cyberdns.tw`
		A	34.80.212.212^{🇹🇼 Google34.80.208.0/20}
			PTR	`212.212.80.34.bc.googleusercontent.com`
NS	`ns2.cyberdns.tw`
		A	35.194.228.87^{🇹🇼 Google35.194.224.0/20}
			PTR	`87.228.194.35.bc.googleusercontent.com`
MX	`mail.tcmastersgroup.com` ⭐
		A	211.72.126.35^{🇹🇼 HiNet211.72.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`211-72-126-35.hinet-ip.hinet.net`
SOA	`localhost@`hostmaster@tcmastersgroup.com serial=2016

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

Subdomains

mail.tcmastersgroup.com

Same first word

tcmastersgroup.com

DNS History

7 records (4 active, 3 former)

●NSlocalhost@2015-06-07 → 2026-03-24 · 5 obs

● 2015-06-07 13:48:16
○ 2015-10-22 00:39:50
○ 2020-02-13 19:23:14
● 2026-03-21 12:20:34
● 2026-03-24 10:53:14

○NSlocalhost\@2015-10-22 → 2020-02-13 · 5 obs

○ 2015-06-07 13:48:16
● 2015-10-22 00:39:50
● 2020-02-13 19:23:14
○ 2026-03-21 12:20:34
○ 2026-03-24 10:53:14

●NSns1.cyberdns.tw2020-02-13 → 2026-03-24 · 3 obs

○ 2017-02-09 19:40:46
● 2020-02-13 19:23:14
● 2026-03-24 10:53:14

●NSns2.cyberdns.tw2020-02-13 → 2026-03-24 · 3 obs

○ 2017-02-09 19:40:46
● 2020-02-13 19:23:14
● 2026-03-24 10:53:14

○NSpdns1.pchome.com.tw2015-06-07 → 2017-02-09 · 4 obs

● 2015-06-07 13:48:16
● 2017-02-09 19:40:46
○ 2020-02-13 19:23:14
○ 2026-03-24 10:53:14

○NSpdns2.pchome.com.tw2015-06-07 → 2017-02-09 · 4 obs

● 2015-06-07 13:48:16
● 2017-02-09 19:40:46
○ 2020-02-13 19:23:14
○ 2026-03-24 10:53:14

●MXmail.tcmastersgroup.com2015-06-07 → 2026-03-24 · 2 obs

● 2015-06-07 13:48:16
● 2026-03-24 10:53:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net...	-
tcmastersgroup.com	ns1.cyberdns.tw, ns2.cyberdns.tw	-

✅ Authoritative Response

Server:34.80.212.212

NS records: ns1.cyberdns.tw, ns2.cyberdns.tw

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tcmastersgroup.com (unsigned zone)

⏱️ Timing

Total: 1167ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.cyberdns.tw, ns2.cyberdns.tw`
MX	1	`mail.tcmastersgroup.com (pri: 10)`
SOA	1	`localhost@ hostmaster.tcmastersgroup.com`

Analysis

Hierarchy

The parent of mail.tcmastersgroup.com is tcmastersgroup.com.

Name Servers

tcmastersgroup.com is delegated to three name servers: localhost@, ns1.cyberdns.tw and ns2.cyberdns.tw.

tcmastersgroup.com at least partially shares name servers with other domains, for instance 11-34.idv.tw, iot.com.tw, kenliu.com.tw, winmems.com.tw and eel.com.tw.

Host names with a single IP:

ns1.cyberdns.tw points to 34.80.212.212.

ns2.cyberdns.tw points to 35.194.228.87.

Mail Servers

tcmastersgroup.com is handled by a single mail server, mail.tcmastersgroup.com.

mail.tcmastersgroup.com points to a single IP: 211.72.126.35.

tcmastersgroup.com - robtex.com