doctorsmile.jp - robtex.com

doctorsmile.jp

DNSSEC⚠️ Not signed
A157.112.152.29🇯🇵 XSERVER-AS157.112.152.0/21 XSERVER Inc.
PTRsv928.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
MXdoctorsmile.jp
A157.112.152.29🇯🇵 XSERVER-AS157.112.152.0/21 XSERVER Inc.
PTRsv928.xserver.jp
TXTv=spf1 +a:sv928.xserver.jp +a:doctorsmile.jp +mx include:spf.sender.xserver.j...
SOAns1.xserver.jproot@xserver.jp serial=0

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1784327403

MX for

Same first word

Similar names

DNS History

11 records (7 active, 4 former)

20162017201820192020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpasns1.customer.ne.jpasns2.customer.ne.jpMXdoctorsmile.jpA157.112.152.29111.89.138.170119.245.144.220
NSasns1.customer.ne.jp2015-07-08 → 2017-01-26 · 4 obs
● 2015-07-08 06:55:34
● 2017-01-26 17:09:24
○ 2019-12-31 12:12:50
○ 2026-07-17 22:45:54
NSasns2.customer.ne.jp2015-07-08 → 2017-01-26 · 4 obs
● 2015-07-08 06:55:34
● 2017-01-26 17:09:24
○ 2019-12-31 12:12:50
○ 2026-07-17 22:45:54
NSns1.xserver.jp2019-12-31 → 2026-07-17 · 5 obs
○ 2017-01-26 17:09:24
● 2019-12-31 12:12:50
○ 2026-06-11 18:27:12
● 2026-07-09 13:45:28
● 2026-07-17 22:45:54
NSns2.xserver.jp2019-12-31 → 2026-07-17 · 5 obs
○ 2017-01-26 17:09:24
● 2019-12-31 12:12:50
○ 2026-06-11 18:27:12
● 2026-07-09 13:45:28
● 2026-07-17 22:45:54
NSns3.xserver.jp2019-12-31 → 2026-07-17 · 5 obs
○ 2017-01-26 17:09:24
● 2019-12-31 12:12:50
○ 2026-06-11 18:27:12
● 2026-07-09 13:45:28
● 2026-07-17 22:45:54
NSns4.xserver.jp2019-12-31 → 2026-07-17 · 5 obs
○ 2017-01-26 17:09:24
● 2019-12-31 12:12:50
○ 2026-06-11 18:27:12
● 2026-07-09 13:45:28
● 2026-07-17 22:45:54
NSns5.xserver.jp2019-12-31 → 2026-07-17 · 5 obs
○ 2017-01-26 17:09:24
● 2019-12-31 12:12:50
○ 2026-06-11 18:27:12
● 2026-07-09 13:45:28
● 2026-07-17 22:45:54
MXdoctorsmile.jp2019-12-31 → 2026-07-17 · 4 obs
● 2019-12-31 12:12:50
○ 2026-06-11 18:27:12
● 2026-07-09 13:45:28
● 2026-07-17 22:45:54
A111.89.138.1702017-01-26 → 2017-01-26 · 4 obs
○ 2016-03-06 19:02:06
● 2017-01-26 17:09:24
○ 2019-12-31 12:12:50
○ 2026-07-17 22:45:54
A119.245.144.2202015-07-08 → 2016-03-06 · 4 obs
● 2015-07-08 06:55:34
● 2016-03-06 19:02:06
○ 2017-01-26 17:09:24
○ 2026-07-17 22:45:54
A157.112.152.292019-12-31 → 2026-07-17 · 5 obs
○ 2017-01-26 17:09:24
● 2019-12-31 12:12:50
○ 2026-06-11 18:27:12
● 2026-07-09 13:45:28
● 2026-07-17 22:45:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpb.dns.jp, a.dns.jp, f.dns.jp, g.dns.jp...-
doctorsmile.jpns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...11 records

✅ Authoritative Response

Server:183.90.224.230

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 doctorsmile.jp (unsigned zone)

⏱️ Timing

Total: 998ms | Queries: -

📄 Records

TypeCountSample Data
A1157.112.152.29
NS5ns5.xserver.jp, ns2.xserver.jp...
MX1doctorsmile.jp (pri: 0)
TXT1v=spf1 +a:sv928.xserver.jp +a:doctorsmil
SOA1ns1.xserver.jp root.xserver.jp

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Mail Server Role

doctorsmile.jp serves as a mail server for doctorsmile.jp.

IP Addresses

doctorsmile.jp has exactly one IP address — 157.112.152.29.

sv928.xserver.jp, shimitaro.com, japantemple.net plus two other host names have IP numbers in common with doctorsmile.jp.

Name Servers

Five name servers handle delegation for doctorsmile.jp: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

There is at least partial name server overlap between doctorsmile.jp and other domains — laloo.jp, tane1.com, shizu-jinbank.or.jp and two more among them.

These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.

Host names carrying three IP numbers:

ns1.xserver.jp resolves to 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp resolves to 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp resolves to 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names resolving to a single IP address:

ns2.xserver.jp resolves to 35.72.43.26.

ns3.xserver.jp resolves to 202.226.36.247.

Mail Servers

doctorsmile.jp uses exactly one mail server, which is doctorsmile.jp.

doctorsmile.jp points to one IP number — 157.112.152.29.