knowledge-h.com - robtex.com

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knowledge-h.com

DNSSEC⚠️ Not signed
A34.111.141.225🇺🇸 Google34.108.0.0/14
PTR225.141.111.34.bc.googleusercontent.com
NSns1.xserver.jp ⭐
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MXsmtp.google.com ⭐
A2607:f8b0:4004:c17::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbl-in-f26.1e100.net
A2607:f8b0:4004:c1f::1a🇺🇸 Google2607:f8b0:4004::/48
PTRpd-in-f26.1e100.net
A2607:f8b0:4004:c1f::1b🇺🇸 Google2607:f8b0:4004::/48
PTRpd-in-f27.1e100.net
A2607:f8b0:4004:c21::1b🇺🇸 Google2607:f8b0:4004::/48
PTRpe-in-f27.1e100.net
A64.233.180.26🇺🇸 Google64.233.180.0/24
PTRon-in-f26.1e100.net
PTRpe-in-f26.1e100.net
A64.233.180.27🇺🇸 Google64.233.180.0/24
PTRon-in-f27.1e100.net
PTRpe-in-f27.1e100.net
A142.251.16.26🇺🇸 Google142.251.16.0/24
PTRbl-in-f26.1e100.net
A142.251.179.26🇺🇸 Google142.251.179.0/24
PTRpd-in-f26.1e100.net
A142.251.179.27🇺🇸 Google142.251.179.0/24
PTRpd-in-f27.1e100.net
TXTv=spf1 include:46828509.spf10.hubspotemail.net -all
TXTgoogle-site-verification=PVo4Bq9IgeMjGb8QLWNpIbingkO3VVDBor5KbxV9mRQ
SOAns1.xserver.jproot@xserver.jp serial=0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786738539

Same first word

knowledge-h.com

DNS History

7 records (7 active, 0 former)

NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXsmtp.google.comA34.111.141.225
●NSns1.xserver.jp2026-08-09 → 2026-08-14 · 2 obs
● 2026-08-09 11:34:50
● 2026-08-14 20:27:32
●NSns2.xserver.jp2026-08-09 → 2026-08-14 · 2 obs
● 2026-08-09 11:34:50
● 2026-08-14 20:27:32
●NSns3.xserver.jp2026-08-09 → 2026-08-14 · 2 obs
● 2026-08-09 11:34:50
● 2026-08-14 20:27:32
●NSns4.xserver.jp2026-08-09 → 2026-08-14 · 2 obs
● 2026-08-09 11:34:50
● 2026-08-14 20:27:32
●NSns5.xserver.jp2026-08-09 → 2026-08-14 · 2 obs
● 2026-08-09 11:34:50
● 2026-08-14 20:27:32
●MXsmtp.google.com2026-08-09 → 2026-08-14 · 2 obs
● 2026-08-09 11:34:50
● 2026-08-14 20:27:32
●A34.111.141.2252026-08-09 → 2026-08-14 · 2 obs
● 2026-08-09 11:34:50
● 2026-08-14 20:27:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
knowledge-h.comns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...-

✅ Authoritative Response

Server:202.226.36.170

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledge-h.com (unsigned zone)

⏱️ Timing

Total: 1166ms | Queries: -

📄 Records

TypeCountSample Data
A134.111.141.225
NS5ns2.xserver.jp, ns4.xserver.jp...
MX1SMTP.GOOGLE.com (pri: 1)
TXT2google-site-verification=PVo4Bq9IgeMjGb8, v=spf1 include:46828509.spf10.hubspotema
SOA1ns1.xserver.jp root.xserver.jp

Analysis

IP Addresses

knowledge-h.com directs to one IP number, which is 34.111.141.225.

Among the host names that share IP numbers with knowledge-h.com are kids-internship.com, kyojinphoto.com, phosna.com and two others.

Name Servers

The authoritative name servers for knowledge-h.com are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

knowledge-h.com has at least partial name server overlap with other domains, such as ubisoft-support.jp, heartlink.jp, totoro.co and two others.

It is common to see these name servers used together with name servers ns4.xserver.jp and ns5.xserver.jp.

Hosts with three IP address records:

ns1.xserver.jp has IP addresses 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp has IP addresses 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp has IP addresses 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Hosts that resolve to one IP address:

ns2.xserver.jp directs to 35.72.43.26.

ns3.xserver.jp directs to 202.226.36.247.

Mail Servers

knowledge-h.com routes its mail through a single mail server, smtp.google.com.

knowledge-h.com has the same mail server arrangement as a number of other domains, for example hoteliernews.com.br, sleuthkit.org, nexzinternational.com and two more.

knowledge-h.com shares at least some of its mail servers with other domains — for example bigdooh.com.br, colegiologosofico.com.br, cargoinc.com and two more.

smtp.google.com directs to 9 IP numbers, including 64.233.180.26, 64.233.180.27 and 142.251.16.26, along with 6 other.