`ctta.org.tw`

DNSSEC	🔒 Signed (DS record present)
A	103.1.221.213^{🇹🇼 YUANJHEN-TW103.1.220.0/23 Yuan-Jhen Info., Co., Ltd 12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,New Taipei City, 235, R.O.C NewTaipei City}
		PTR	`103-1-221-213.static.ip.net.tw`
NS	`ns11.twnic.net.tw` ⭐
		A	2001:cd8:800::198^{🇹🇼 Seednet2001:cd8::/32 SeedNet/NCIC route object}
		A	2404:0:10a0::3852^{🇹🇼 EBT2404:0:1000::/40 Asia Pacific Telecom IPv6}
		A	54.249.43.242^{🇯🇵 Amazon54.249.32.0/19 EC2 NRT}
			PTR	`ec2-54-249-43-242.ap-northeast-1.compute.amazonaws.com`
		A	203.73.24.198^{🇹🇼 Seednet203.73.24.0/24 SeedNet}
		A	210.201.138.52^{🇹🇼 APOL210.201.138.0/24 Asia Pacific Telecom co., Ltd}
NS	`ns12.twnic.net.tw`
		A	2001:454e:c010:101::234^{🇹🇼 TFN-NET2001:454e:c010::/48 Proxy-registered route object(Customer)}
			PTR	`ns12.twnic.net.tw`
		A	2001:b000:1e0:c000::13^{🇹🇼 HiNet2001:b000:100::/40}
		A	60.199.218.234^{🇹🇼 TFN-NET60.199.218.0/24 Taiwan Fixed Network}
			PTR	`ns12.twnic.net.tw`
		A	104.199.237.109^{🇹🇼 Google104.199.224.0/20}
			PTR	`109.237.199.104.bc.googleusercontent.com`
		A	211.20.231.13^{🇹🇼 HiNet211.20.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`211-20-231-13.hinet-ip.hinet.net`
SOA	`ns11.twnic.net.tw`tech@twnic.net.tw serial=1783278580

`org.tw`

	DNSSEC	🔒 Signed (DS record present)
	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.tw`snw@twnic.net.tw serial=1999644351

WOT: SAFE (60/100)
WOT: SAFE (78/100)

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DNS History

4 records (3 active, 1 former)

●NSns11.twnic.net.tw2008-11-27 → 2026-07-27 · 2 obs

● 2008-11-27 22:04:36
● 2026-07-27 17:35:42

●NSns12.twnic.net.tw2008-11-27 → 2026-07-27 · 2 obs

● 2008-11-27 22:04:36
● 2026-07-27 17:35:42

●A103.1.221.2132026-06-14 → 2026-07-27 · 3 obs

○ 2017-04-19 13:32:20
● 2026-06-14 14:00:18
● 2026-07-27 17:35:42

○A203.160.250.602008-11-27 → 2017-04-19 · 4 obs

● 2008-11-27 22:04:36
● 2017-04-19 13:32:20
○ 2026-06-14 14:00:18
○ 2026-07-27 17:35:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tw	a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw...	-
ctta.org.tw	ns11.twnic.net.tw, ns12.twnic.net.tw	-

✅ Authoritative Response

Server:54.249.43.242

NS records: ns11.twnic.net.tw, ns12.twnic.net.tw

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2361ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.1.221.213`
NS	2	`ns11.twnic.net.tw, ns12.twnic.net.tw`
SOA	1	`ns11.twnic.net.tw tech.twnic.net.tw`

Analysis

IP Addresses

ctta.org.tw has exactly one IP address — 103.1.221.213.

ulix.com.tw, win-champ.com.tw, solerie.com plus two other host names have IP numbers in common with ctta.org.tw.

Name Servers

ctta.org.tw has two authoritative name servers — ns11.twnic.net.tw and ns12.twnic.net.tw.

The name server configuration of ctta.org.tw is shared with other domains, for instance airasia.com.tw, motostar.com.tw, chuan-chi.com.tw and two others.

Hosts with five IP addresses:

ns11.twnic.net.tw has IP addresses 54.249.43.242, 203.73.24.198 and 210.201.138.52 along with two other addresses.

ns12.twnic.net.tw has IP addresses 60.199.218.234, 104.199.237.109 and 211.20.231.13 along with two other addresses.

ctta.org.tw - robtex.com

ctta.org.tw

org.tw