knowledge-art.co.jp - robtex.com

knowledge-art.co.jp

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:3ba2🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:b4eb🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.59.162Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.180.235🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSarcher.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c88🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarcher.ns.cloudflare.com
A2803:f800:50::6ca2:c388🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRarcher.ns.cloudflare.com
A2a06:98c1:50::ac40:2388🇺🇸 Cloudflare2a06:98c1:50::/45
PTRarcher.ns.cloudflare.com
A108.162.195.136🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarcher.ns.cloudflare.com
A162.159.44.136Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarcher.ns.cloudflare.com
A172.64.35.136🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarcher.ns.cloudflare.com
NSjacqueline.ns.cloudflare.com
A2606:4700:50::a29f:2684🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjacqueline.ns.cloudflare.com
A2803:f800:50::6ca2:c284🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjacqueline.ns.cloudflare.com
A2a06:98c1:50::ac40:2284🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjacqueline.ns.cloudflare.com
A108.162.194.132🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjacqueline.ns.cloudflare.com
A162.159.38.132Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjacqueline.ns.cloudflare.com
A172.64.34.132🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjacqueline.ns.cloudflare.com
MX_dc-mx.b30ba9c7a496.knowledge-art.co.jp ⭐
A85.131.197.187🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.
PTRsv16246.xserver.jp
TXTv=spf1 +a:sv16246.xserver.jp +a:knowledge-art.co.jp +mx include:spf.sender.xs...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.59.162, 172.67.180.235
IPv6 hints2606:4700:3035::6815:3ba2, 2606:4700:3037::ac43:b4eb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=168, name=cloudflare-ech.com
SOAarcher.ns.cloudflare.comdns@cloudflare.com serial=2409523739

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (58/100)

Previously MX for

knowledge-art.co.jp

Subdomains

b30ba9c7a496.knowledge-art.co.jp

Same first word

knowledge-art.co.jp

DNS History

16 records (7 active, 9 former)

NSarcher.ns.cloudflare.comjacqueline.ns.cloudflare.comns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMX_dc-mx.b30ba9c7a496.knowledge-art.co.jpknowledge-art.co.jpA104.21.59.162172.67.180.2352606:4700:3035::6815:3ba22606:4700:3037::ac43:b4eb2606:4700:3030::6815:3ba22606:4700:3036::ac43:b4eb85.131.197.187
●NSarcher.ns.cloudflare.com2026-04-28 → 2026-08-10 · 3 obs
○ 2026-03-28 05:06:18
● 2026-04-28 11:56:18
● 2026-08-10 16:03:38
●NSjacqueline.ns.cloudflare.com2026-04-28 → 2026-08-10 · 3 obs
○ 2026-03-28 05:06:18
● 2026-04-28 11:56:18
● 2026-08-10 16:03:38
○NSns1.xserver.jp2026-03-14 → 2026-03-28 · 4 obs
● 2026-03-14 10:50:06
● 2026-03-28 05:06:18
○ 2026-04-28 11:56:18
○ 2026-08-10 16:03:38
○NSns2.xserver.jp2026-03-14 → 2026-03-28 · 4 obs
● 2026-03-14 10:50:06
● 2026-03-28 05:06:18
○ 2026-04-28 11:56:18
○ 2026-08-10 16:03:38
○NSns3.xserver.jp2026-03-14 → 2026-03-28 · 4 obs
● 2026-03-14 10:50:06
● 2026-03-28 05:06:18
○ 2026-04-28 11:56:18
○ 2026-08-10 16:03:38
○NSns4.xserver.jp2026-03-14 → 2026-03-28 · 4 obs
● 2026-03-14 10:50:06
● 2026-03-28 05:06:18
○ 2026-04-28 11:56:18
○ 2026-08-10 16:03:38
○NSns5.xserver.jp2026-03-14 → 2026-03-28 · 4 obs
● 2026-03-14 10:50:06
● 2026-03-28 05:06:18
○ 2026-04-28 11:56:18
○ 2026-08-10 16:03:38
●MX_dc-mx.b30ba9c7a496.knowledge-art.co.jp2026-04-28 → 2026-08-10 · 3 obs
○ 2026-03-28 05:06:18
● 2026-04-28 11:56:18
● 2026-08-10 16:03:38
○MXknowledge-art.co.jp2026-03-14 → 2026-03-28 · 4 obs
● 2026-03-14 10:50:06
● 2026-03-28 05:06:18
○ 2026-04-28 11:56:18
○ 2026-08-10 16:03:38
●A104.21.59.1622026-04-28 → 2026-08-10 · 3 obs
○ 2026-03-28 05:06:18
● 2026-04-28 11:56:18
● 2026-08-10 16:03:38
●A172.67.180.2352026-04-28 → 2026-08-10 · 3 obs
○ 2026-03-28 05:06:18
● 2026-04-28 11:56:18
● 2026-08-10 16:03:38
○A2606:4700:3030::6815:3ba22026-04-28 → 2026-05-25 · 5 obs
○ 2026-03-28 05:06:18
● 2026-04-28 11:56:18
● 2026-05-25 04:07:46
○ 2026-06-24 13:13:46
○ 2026-08-10 16:03:38
●A2606:4700:3035::6815:3ba22026-06-24 → 2026-08-10 · 3 obs
○ 2026-05-25 04:07:46
● 2026-06-24 13:13:46
● 2026-08-10 16:03:38
○A2606:4700:3036::ac43:b4eb2026-04-28 → 2026-05-25 · 5 obs
○ 2026-03-28 05:06:18
● 2026-04-28 11:56:18
● 2026-05-25 04:07:46
○ 2026-06-24 13:13:46
○ 2026-08-10 16:03:38
●A2606:4700:3037::ac43:b4eb2026-06-24 → 2026-08-10 · 3 obs
○ 2026-05-25 04:07:46
● 2026-06-24 13:13:46
● 2026-08-10 16:03:38
○A85.131.197.1872026-03-14 → 2026-03-28 · 4 obs
● 2026-03-14 10:50:06
● 2026-03-28 05:06:18
○ 2026-04-28 11:56:18
○ 2026-08-10 16:03:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, c.dns.jp, b.dns.jp, h.dns.jp...-
knowledge-art.co.jparcher.ns.cloudflare.com, jacqueline.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.136

NS records: archer.ns.cloudflare.com, jacqueline.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledge-art.co.jp (unsigned zone)

⏱️ Timing

Total: 571ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.59.162, 172.67.180.235
AAAA22606:4700:3035::6815:3ba2, 2606:4700:3037::ac43:b4eb
NS2archer.ns.cloudflare.com, jacqueline.ns.cloudflare.com
MX1_dc-mx.b30ba9c7a496.knowledge-art.co.jp
TXT1v=spf1 +a:sv16246.xserver.jp +a:knowledg
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1archer.ns.cloudflare.com dns.cloudflare.

Analysis

Hierarchy

The domain b30ba9c7a496.knowledge-art.co.jp falls under the parent knowledge-art.co.jp.

IP Addresses

knowledge-art.co.jp points to the four IP addresses 104.21.59.162, 172.67.180.235, 2606:4700:3035::6815:3ba2 and 2606:4700:3037::ac43:b4eb.

chemistbar.com, integralcloud.click, totvs.sindpd.org.br plus two other host names have IP numbers in common with knowledge-art.co.jp.

Name Servers

knowledge-art.co.jp is delegated to two name servers: archer.ns.cloudflare.com and jacqueline.ns.cloudflare.com.

The name server configuration of knowledge-art.co.jp is shared with other domains, for instance coastviewsmag.com, reclassic.com.br, hostahora.com and two others.

At least some of knowledge-art.co.jp's name servers are shared with other domains, for example zoomarkt.de, jeux-de-casino-gratuits-en-ligne-fr.com, aoninvestmentpro.com and two more.

These name servers tend to be deployed in combination with the name servers osmar.ns.cloudflare.com and gabe.ns.cloudflare.com.

Hosts with 6 IP addresses each:

archer.ns.cloudflare.com resolves to 108.162.195.136, 162.159.44.136, 172.64.35.136 and 3 other IP addresses.

jacqueline.ns.cloudflare.com resolves to 108.162.194.132, 162.159.38.132, 172.64.34.132 and 3 other IP addresses.

Mail Servers

knowledge-art.co.jp uses one mail server — _dc-mx.b30ba9c7a496.knowledge-art.co.jp.

_dc-mx.b30ba9c7a496.knowledge-art.co.jp resolves to a single IP number: 85.131.197.187.