`ch-arch.com.tw`

DNSSEC	⚠️ Not signed
A	103.144.32.85^{🇹🇼 NSS-GROUP-AS-TW103.144.32.0/24 NSS INT'L CO., LTD.}
		PTR	`wpc5.coowo.com`
NS	`m.coowo.com` ⭐
		A	103.118.24.13^{🇹🇼 NSS-GROUP-AS-TW103.118.24.0/24 NSS INT'L CO., LTD.}
			PTR	`m.coowo.com`
NS	`n.coowo.com` ⚠️ Not in parent delegation
		A	103.118.24.133^{🇹🇼 NSS-GROUP-AS-TW103.118.24.0/24 NSS INT'L CO., LTD.}
			PTR	`n.coowo.com`
NS	`n.cowoo.com` ⚠️ Not in zone NS records
		A	2600:1f18:4ae:c605:dd5d:b838:5816:d7fb^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:4ae:c606:78d4:4260:db4e:aeee^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
		A	13.223.25.84^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-223-25-84.compute-1.amazonaws.com`
		A	54.243.117.197^{🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-243-117-197.compute-1.amazonaws.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c06::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f27.1e100.net`
		A	142.251.179.27^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
MX	`mail.ch-arch.com.tw`⁽¹⁰⁾
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`m.coowo.com`wa993078@gmail.com 2025-08-01 #6

`com.tw`

	DNSSEC	⚠️ Not signed
	NS	`a.twnic.net.tw` ⭐
	SOA	`a.twnic.net.tw`snw@twnic.net.tw serial=2006386646

WOT: SAFE (58/100)

Same first word

ch-arch.com

ch-arch.com.tw

Similar names

arch-hc.com

DNS History

19 records (10 active, 9 former)

●NSm.coowo.com2026-06-10 → 2026-07-28 · 3 obs

○ 2020-01-31 09:50:12
● 2026-06-10 03:46:56
● 2026-07-28 20:46:38

●NSn.coowo.com2026-06-10 → 2026-07-28 · 3 obs

○ 2020-01-31 09:50:12
● 2026-06-10 03:46:56
● 2026-07-28 20:46:38

●NSn.cowoo.com2026-06-10 → 2026-07-28 · 3 obs

○ 2020-01-31 09:50:12
● 2026-06-10 03:46:56
● 2026-07-28 20:46:38

○NSns1.afraid.org2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

○NSns2.afraid.org2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

○NSns3.afraid.org2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

○NSns4.afraid.org2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

●MXalt1.aspmx.l.google.com2015-07-26 → 2026-07-28 · 2 obs

● 2015-07-26 05:03:16
● 2026-07-28 20:46:38

●MXalt2.aspmx.l.google.com2015-07-26 → 2026-07-28 · 2 obs

● 2015-07-26 05:03:16
● 2026-07-28 20:46:38

●MXalt3.aspmx.l.google.com2026-06-10 → 2026-07-28 · 3 obs

○ 2020-01-31 09:50:12
● 2026-06-10 03:46:56
● 2026-07-28 20:46:38

●MXalt4.aspmx.l.google.com2026-06-10 → 2026-07-28 · 3 obs

○ 2020-01-31 09:50:12
● 2026-06-10 03:46:56
● 2026-07-28 20:46:38

●MXaspmx.l.google.com2015-07-26 → 2026-07-28 · 2 obs

● 2015-07-26 05:03:16
● 2026-07-28 20:46:38

○MXaspmx2.googlemail.com2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

○MXaspmx3.googlemail.com2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

○MXaspmx4.googlemail.com2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

○MXaspmx5.googlemail.com2015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

●MXmail.ch-arch.com.tw2026-06-10 → 2026-07-28 · 3 obs

○ 2020-01-31 09:50:12
● 2026-06-10 03:46:56
● 2026-07-28 20:46:38

●A103.144.32.852026-06-10 → 2026-07-28 · 3 obs

○ 2020-01-31 09:50:12
● 2026-06-10 03:46:56
● 2026-07-28 20:46:38

○A69.197.18.1792015-07-26 → 2020-01-31 · 4 obs

● 2015-07-26 05:03:16
● 2020-01-31 09:50:12
○ 2026-06-10 03:46:56
○ 2026-07-28 20:46:38

🔍 DNS Trace

Analysis

IP Addresses

ch-arch.com.tw resolves to just one IP address, 103.144.32.85.

Two other host names, along with ns.com.tw, mail.w-kang.com and ruibots.com.tw, also share IP numbers with ch-arch.com.tw.

Name Servers

The authoritative name servers for ch-arch.com.tw are m.coowo.com, n.coowo.com and n.cowoo.com — three in total.

ch-arch.com.tw has at least partial name server overlap with other domains, such as changiron.com, xinruis.com, thealex.com.tw and two others.

It is common to see these name servers used together with name servers ns3.coowo.com and ns4.coowo.com.

Host names that resolve to four IP numbers:

n.cowoo.com has four IP addresses: 13.223.25.84, 54.243.117.197, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb and 2600:1f18:4ae:c606:78d4:4260:db4e:aeee.

Host names that point to one IP address:

m.coowo.com has the IP address 103.118.24.13.

n.coowo.com has the IP address 103.118.24.133.

Mail Servers

Mail for ch-arch.com.tw is routed through 6 mail servers, including aspmx.l.google.com, mail.ch-arch.com.tw, alt1.aspmx.l.google.com and 3 other.

There is at least a partial MX overlap between ch-arch.com.tw and other domains, including ns500754.ns500731.ns500742.ns500704.ns500704.ns500742.ns500731.ns500705.ns500704.ns500704.ns500671.ns500671.ns500291.ns500649.ns500666.lustychickser.com, ns500731.ns500731.ns500731.ns500671.ns500742.ns500731.ns500704.ns500705.ns500671.ns500671.ns500688.ns500291.ns500291.ns500153.tenderladiesbz.com, ns500742.ns500754.ns500671.ns500742.ns500731.ns500671.ns500671.ns500731.ns500705.ns500688.ns500704.ns500704.ns500671.ns500688.tenderladiesbz.com and two others.

These mail servers frequently co-occur with the mail servers alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and two others.

Host names that have two IP addresses:

aspmx.l.google.com directs traffic to 142.251.179.27 and 2607:f8b0:4004:c06::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1b.