🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cardstack.jp`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:c86f^{Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5508^{Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.85.8^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.200.111^{Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clay.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b58^{Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	2803:f800:50::6ca2:c158^{Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
		A	2a06:98c1:50::ac40:2158^{Cloudflare2a06:98c1:50::/45}
		A	108.162.193.88^{Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.33.88^{Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.59.88^{Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`pola.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pola.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pola.ns.cloudflare.com`
		A	108.162.192.214^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	172.64.32.214^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	173.245.58.214^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
MX	`_dc-mx.291c893f4f14.cardstack.jp` ⭐
TXT	`v=spf1 ip4:183.90.183.159 include:_spf.cbsv.jp ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.85.8, 172.67.200.111
		IPv6 hints	2606:4700:3034::ac43:c86f, 2606:4700:3037::6815:5508
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com
SOA	`clay.ns.cloudflare.com`dns@cloudflare.com serial=2415462511

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1793134803

Previously MX for

cardstack.jp

DNS History

12 records (7 active, 5 former)

○NSa.misconfigured.dns.server.invalid2026-09-09 → 2026-09-09 · 3 obs

● 2026-09-09 00:36:08
○ 2026-09-30 16:39:06
○ 2026-10-27 21:51:36

●NSclay.ns.cloudflare.com2026-09-30 → 2026-10-27 · 3 obs

○ 2026-09-09 00:36:08
● 2026-09-30 16:39:06
● 2026-10-27 21:51:36

○NSns1.cbsv.jp2026-09-09 → 2026-09-09 · 3 obs

● 2026-09-09 00:36:08
○ 2026-09-30 16:39:06
○ 2026-10-27 21:51:36

○NSns2.cbsv.jp2026-09-09 → 2026-09-09 · 3 obs

● 2026-09-09 00:36:08
○ 2026-09-30 16:39:06
○ 2026-10-27 21:51:36

●NSpola.ns.cloudflare.com2026-09-30 → 2026-10-27 · 3 obs

○ 2026-09-09 00:36:08
● 2026-09-30 16:39:06
● 2026-10-27 21:51:36

●MX_dc-mx.291c893f4f14.cardstack.jp2026-09-30 → 2026-10-27 · 3 obs

○ 2026-09-09 00:36:08
● 2026-09-30 16:39:06
● 2026-10-27 21:51:36

○MXcardstack.jp2026-09-09 → 2026-09-09 · 3 obs

● 2026-09-09 00:36:08
○ 2026-09-30 16:39:06
○ 2026-10-27 21:51:36

●A104.21.85.82026-09-30 → 2026-10-27 · 3 obs

○ 2026-09-09 00:36:08
● 2026-09-30 16:39:06
● 2026-10-27 21:51:36

●A172.67.200.1112026-09-30 → 2026-10-27 · 3 obs

○ 2026-09-09 00:36:08
● 2026-09-30 16:39:06
● 2026-10-27 21:51:36

○A183.90.183.1592026-09-09 → 2026-09-09 · 3 obs

● 2026-09-09 00:36:08
○ 2026-09-30 16:39:06
○ 2026-10-27 21:51:36

●A2606:4700:3034::ac43:c86f2026-09-30 → 2026-10-27 · 3 obs

○ 2026-09-09 00:36:08
● 2026-09-30 16:39:06
● 2026-10-27 21:51:36

●A2606:4700:3037::6815:55082026-09-30 → 2026-10-27 · 3 obs

○ 2026-09-09 00:36:08
● 2026-09-30 16:39:06
● 2026-10-27 21:51:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
cardstack.jp	clay.ns.cloudflare.com, pola.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.88

NS records: clay.ns.cloudflare.com, pola.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cardstack.jp (unsigned zone)

⏱️ Timing

Total: 2253ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.200.111, 104.21.85.8`
AAAA	2	`2606:4700:3037::6815:5508, 2606:4700:3034::ac43:c86f`
NS	2	`clay.ns.cloudflare.com, pola.ns.cloudflare.com`
MX	1	`_dc-mx.291c893f4f14.cardstack.jp (pri: 1`
TXT	1	`v=spf1 ip4:183.90.183.159 include:_spf.c`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`clay.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

cardstack.jp resolves to four IP addresses: 104.21.85.8, 172.67.200.111, 2606:4700:3034::ac43:c86f and 2606:4700:3037::6815:5508.

Name Servers

cardstack.jp uses two name servers for its delegation: clay.ns.cloudflare.com and pola.ns.cloudflare.com.

Host names with 6 IP numbers:

The host name clay.ns.cloudflare.com points to: 108.162.193.88, 172.64.33.88, 173.245.59.88 and 3 other.

The host name pola.ns.cloudflare.com points to: 108.162.192.214, 172.64.32.214, 173.245.58.214 and 3 other.

Mail Servers

cardstack.jp routes its mail through a single mail server, _dc-mx.291c893f4f14.cardstack.jp.

cardstack.jp - robtex.com

cardstack.jp

jp

Previously MX for

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`cardstack.jp`

`jp`