`centrumtw.com`

DNSSEC	⚠️ Not signed
A	43.254.17.40^{🇹🇼 YUANJHEN-TW43.254.16.0/23 Taiwan Network Information Center 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.}
		PTR	`wp5.g-dns.com`
NS	`dave.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dave.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dave.ns.cloudflare.com`
		A	108.162.193.109^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	172.64.33.109^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	173.245.59.109^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
NS	`kim.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a7e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kim.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kim.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kim.ns.cloudflare.com`
		A	108.162.192.126^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kim.ns.cloudflare.com`
		A	172.64.32.126^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kim.ns.cloudflare.com`
		A	173.245.58.126^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kim.ns.cloudflare.com`
MX	`ms.mailcloud.com.tw` ⭐
		A	203.69.82.10^{🇹🇼 HiNet203.69.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`ms.mailcloud.com.tw`
		A	203.69.82.12^{🇹🇼 HiNet203.69.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`ms.mailcloud.com.tw`
MX	`x2.mailcloud.com.tw`⁽²⁰⁾
		A	210.242.150.162^{🇹🇼 HiNet210.242.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
			PTR	`x2.mailcloud.com.tw`
TXT	`MS=56176B80985FEC9A82699FB9EE00389123913455`
TXT	`v=spf1 include:_spf.mailcloud.com.tw ~all`
SOA	`dave.ns.cloudflare.com`dns@cloudflare.com serial=2399517779

`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=1776203892

Subdomains

mail.centrumtw.com

mailfilter.centrumtw.com

DNS History

9 records (5 active, 4 former)

●NSdave.ns.cloudflare.com2026-04-14 → 2026-04-14 · 3 obs

○ 2017-08-18 15:51:26
● 2026-04-14 22:12:08
● 2026-04-14 22:12:12

●NSkim.ns.cloudflare.com2026-04-14 → 2026-04-14 · 3 obs

○ 2017-08-18 15:51:26
● 2026-04-14 22:12:08
● 2026-04-14 22:12:12

○NSns1.wt500.com2015-07-09 → 2017-08-18 · 4 obs

● 2015-07-09 22:08:36
● 2017-08-18 15:51:26
○ 2026-04-14 22:12:08
○ 2026-04-14 22:12:12

○NSns2.wt500.com2015-07-09 → 2017-08-18 · 4 obs

● 2015-07-09 22:08:36
● 2017-08-18 15:51:26
○ 2026-04-14 22:12:08
○ 2026-04-14 22:12:12

○MXmailfilter.centrumtw.com2015-07-09 → 2017-08-18 · 4 obs

● 2015-07-09 22:08:36
● 2017-08-18 15:51:26
○ 2026-04-14 22:12:08
○ 2026-04-14 22:12:12

●MXms.mailcloud.com.tw2026-04-14 → 2026-04-14 · 3 obs

○ 2017-08-18 15:51:26
● 2026-04-14 22:12:08
● 2026-04-14 22:12:12

●MXx2.mailcloud.com.tw2026-04-14 → 2026-04-14 · 3 obs

○ 2017-08-18 15:51:26
● 2026-04-14 22:12:08
● 2026-04-14 22:12:12

○A219.84.199.382015-07-09 → 2017-08-18 · 4 obs

● 2015-07-09 22:08:36
● 2017-08-18 15:51:26
○ 2026-04-14 22:12:08
○ 2026-04-14 22:12:12

●A43.254.17.402026-04-14 → 2026-04-14 · 3 obs

○ 2017-08-18 15:51:26
● 2026-04-14 22:12:08
● 2026-04-14 22:12:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
centrumtw.com	dave.ns.cloudflare.com, kim.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.109

NS records: dave.ns.cloudflare.com, kim.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for centrumtw.com (unsigned zone)

⏱️ Timing

Total: 70ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`43.254.17.40`
NS	2	`dave.ns.cloudflare.com, kim.ns.cloudflare.com`
MX	2	`ms.mailcloud.com.tw (pri: 10), x2.mailcloud.com.tw (pri: 20)`
TXT	2	`MS=56176B80985FEC9A82699FB9EE00389123913, v=spf1 include:_spf.mailcloud.com.tw ~al`
SOA	1	`dave.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dave.ns.cloudflare.com, dave.ns.cloudflare.com, dave.ns.cloudflare.com...)

Analysis

Hierarchy

centrumtw.com is parent of mail.centrumtw.com and mailfilter.centrumtw.com.

IP Addresses

centrumtw.com resolves to a single IP address: 43.254.17.40.

Other host names including cpcalendars.tat180.com, backhoe.com.tw, mabletech.com, www.sanrio.com.tw and kkl-hulien.org.tw share IP numbers with centrumtw.com.

Name Servers

centrumtw.com's delegation uses two name servers, dave.ns.cloudflare.com and kim.ns.cloudflare.com.

centrumtw.com shares the same name server setup as other domains, for example strefa-szkolenia.pl, ministerstwo.it, morritastube.com.mx, cawi24.pl and f2u.ru.

centrumtw.com at least partially shares name servers with other domains, including enable-it.net, script.cc, braweb.net, dha-events.com and sindicat.xyz.

these name servers are commonly used with mimi.ns.cloudflare.com, leif.ns.cloudflare.com, casey.ns.cloudflare.com and dana.ns.cloudflare.com.

Host names with six IP numbers:

dave.ns.cloudflare.com points to: 2606:4700:58::adf5:3b6d, 2803:f800:50::6ca2:c16d, 2a06:98c1:50::ac40:216d, 108.162.193.109, 172.64.33.109 and 173.245.59.109.

kim.ns.cloudflare.com points to: 2606:4700:50::adf5:3a7e, 2803:f800:50::6ca2:c07e, 2a06:98c1:50::ac40:207e, 108.162.192.126, 172.64.32.126 and 173.245.58.126.

Mail Servers

centrumtw.com is handled by two mail servers: ms.mailcloud.com.tw and x2.mailcloud.com.tw.

centrumtw.com shares its mail server setup with other domains, including big-inno.com, shengmao.com.tw, jellicofood.com, hipet.com.tw and signalgroup.com.tw.

The mail servers for centrumtw.com are shared with other domains, for instance digiage.com.tw, forge.com.tw, marinedelta.com.tw, amazingic.com and unicombo.com.

Hosts with two IPs:

ms.mailcloud.com.tw points to 203.69.82.10 and 203.69.82.12.

Hosts with one IP:

x2.mailcloud.com.tw points to 210.242.150.162.

centrumtw.com - robtex.com

centrumtw.com

com

Subdomains

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`centrumtw.com`

`com`