knowledge-life.com - robtex.com

knowledge-life.com

DNSSEC⚠️ Not signed
A183.90.238.20🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv2319.xserver.jp
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
MXknowledge-life.com ⭐
A183.90.238.20🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv2319.xserver.jp
TXTgoogle-site-verification=YtLsUJPjIGFSi95epu6FOKew7JZUrg7-1PxK2WQa_5E
TXTv=spf1 +a:sv2319.xserver.jp +a:knowledge-life.com +mx include:spf.sender.xser...
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=1774540547

MX for

knowledge-life.com

Same first word

knowledge-life.com

Similar names

life-knowledge.hatenablog.com

DNS History

14 records (7 active, 7 former)

2017201820192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpmaster.dns.ne.jpns1.dns.ne.jpns1.namebrightdns.comns2.dns.ne.jpns2.namebrightdns.comMXknowledge-life.comA183.90.238.2059.106.19.60CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com
○NSmaster.dns.ne.jp2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 13:11:20
○ 2017-10-28 17:15:48
○ 2026-03-26 16:18:28
○NSns1.dns.ne.jp2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 13:11:20
○ 2017-10-28 17:15:48
○ 2026-03-26 16:18:28
○NSns1.namebrightdns.com2017-10-28 → 2017-10-28 · 4 obs
○ 2016-12-20 13:11:20
● 2017-10-28 17:15:48
○ 2026-03-19 06:52:12
○ 2026-03-26 16:18:28
●NSns1.xserver.jp2026-03-19 → 2026-03-26 · 3 obs
○ 2017-10-28 17:15:48
● 2026-03-19 06:52:12
● 2026-03-26 16:18:28
○NSns2.dns.ne.jp2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 13:11:20
○ 2017-10-28 17:15:48
○ 2026-03-26 16:18:28
○NSns2.namebrightdns.com2017-10-28 → 2017-10-28 · 4 obs
○ 2016-12-20 13:11:20
● 2017-10-28 17:15:48
○ 2026-03-19 06:52:12
○ 2026-03-26 16:18:28
●NSns2.xserver.jp2026-03-19 → 2026-03-26 · 3 obs
○ 2017-10-28 17:15:48
● 2026-03-19 06:52:12
● 2026-03-26 16:18:28
●NSns3.xserver.jp2026-03-19 → 2026-03-26 · 3 obs
○ 2017-10-28 17:15:48
● 2026-03-19 06:52:12
● 2026-03-26 16:18:28
●NSns4.xserver.jp2026-03-19 → 2026-03-26 · 3 obs
○ 2017-10-28 17:15:48
● 2026-03-19 06:52:12
● 2026-03-26 16:18:28
●NSns5.xserver.jp2026-03-19 → 2026-03-26 · 3 obs
○ 2017-10-28 17:15:48
● 2026-03-19 06:52:12
● 2026-03-26 16:18:28
●MXknowledge-life.com2016-12-20 → 2026-03-26 · 4 obs
● 2016-12-20 13:11:20
○ 2017-10-28 17:15:48
● 2026-03-19 06:52:12
● 2026-03-26 16:18:28
●A183.90.238.202026-03-19 → 2026-03-26 · 3 obs
○ 2017-10-28 17:15:48
● 2026-03-19 06:52:12
● 2026-03-26 16:18:28
○A59.106.19.602016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 13:11:20
○ 2017-10-28 17:15:48
○ 2026-03-26 16:18:28
○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-10-28 → 2017-10-28 · 3 obs
● 2017-10-28 17:15:48
○ 2026-03-19 06:52:12
○ 2026-03-26 16:18:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
knowledge-life.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-life.com (unsigned zone)

⏱️ Timing

Total: 1206ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.238.20
NS5ns2.xserver.jp, ns3.xserver.jp...
MX1knowledge-life.com (pri: 0)
TXT2google-site-verification=YtLsUJPjIGFSi95, v=spf1 +a:sv2319.xserver.jp +a:knowledge
SOA1ns1.xserver.jp root.xserver.jp

Analysis

Mail Server Role

For knowledge-life.com, the mail server is knowledge-life.com.

IP Addresses

knowledge-life.com resolves to one IP number: 183.90.238.20.

other host names including www.tokyo-heart-rhythm.clinic, pop.futabahoikuen.com, tachikawa-musashimurayama-lease.com, tokyo-heart-rhythm.clinic and www.genepa.com share IP numbers with knowledge-life.com.

Name Servers

knowledge-life.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

knowledge-life.com at least partially shares name servers with other domains, for instance keio-flex.com, starpress.co.jp, e-omiai.jp, begginers-cryptocurrency.com and 4season-eye.com.

Host names with three IP numbers:

ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246; ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247; ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names with one IP number:

ns2.xserver.jp points to: 35.72.43.26; ns3.xserver.jp points to: 202.226.36.247.

Mail Servers

knowledge-life.com is served by a single mail server, knowledge-life.com.

knowledge-life.com resolves to IP 183.90.238.20.