optico.co.jp - robtex.com

optico.co.jp

DNSSEC⚠️ Not signed
A183.90.241.7🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.
PTRsv7486.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
MXoptico.co.jp ⭐
A183.90.241.7🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.
PTRsv7486.xserver.jp
TXTv=spf1 +a:sv7486.xserver.jp +a:optico.co.jp +mx include:spf.sender.xserver.jp...
SOAns1.xserver.jproot@xserver.jp serial=0

co.jp

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

MX for

optico.co.jp

Same first word

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opotic.com
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pictoo.com
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itcoop.or.jp
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topico.com
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cotopi.com
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octopi.biz
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topico.it
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pociot.dk
pitoco.com
itcoop.org
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octopi.de
iotpoc.com
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toopic.com
octopi.com
tipcoo.com
topico.com.br
potico.cn

DNS History

7 records (7 active, 0 former)

2020202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXoptico.co.jpA183.90.241.7
●NSns1.xserver.jp2019-12-13 → 2026-07-19 · 2 obs
● 2019-12-13 14:14:50
● 2026-07-19 16:52:40
●NSns2.xserver.jp2019-12-13 → 2026-07-19 · 2 obs
● 2019-12-13 14:14:50
● 2026-07-19 16:52:40
●NSns3.xserver.jp2019-12-13 → 2026-07-19 · 2 obs
● 2019-12-13 14:14:50
● 2026-07-19 16:52:40
●NSns4.xserver.jp2019-12-13 → 2026-07-19 · 2 obs
● 2019-12-13 14:14:50
● 2026-07-19 16:52:40
●NSns5.xserver.jp2019-12-13 → 2026-07-19 · 2 obs
● 2019-12-13 14:14:50
● 2026-07-19 16:52:40
●MXoptico.co.jp2019-12-13 → 2026-07-19 · 2 obs
● 2019-12-13 14:14:50
● 2026-07-19 16:52:40
●A183.90.241.72019-12-13 → 2026-07-19 · 2 obs
● 2019-12-13 14:14:50
● 2026-07-19 16:52:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
optico.co.jpns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...11 records

✅ 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 optico.co.jp (unsigned zone)

⏱️ Timing

Total: 908ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.241.7
NS5ns4.xserver.jp, ns1.xserver.jp...
MX1optico.co.jp (pri: 0)
TXT1v=spf1 +a:sv7486.xserver.jp +a:optico.co
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

optico.co.jp handles its own mail, functioning as its own mail server.

IP Addresses

optico.co.jp resolves to just one IP address, 183.90.241.7.

Two other host names, along with asset-cube.co.jp, crg-be.com and mx1.webcontents.net, also share IP numbers with optico.co.jp.

Name Servers

optico.co.jp delegates to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

At least some of optico.co.jp's name servers are shared with other domains, for example fuefuki-hp.net, ryu-ga-gotoku-live.com, plamodel-shoshinshanavi.com and two more.

These name servers tend to be deployed in combination with the name servers ns4.xserver.jp and ns5.xserver.jp.

Hostnames that map to three IP numbers:

ns1.xserver.jp maps to three IP addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp maps to three IP addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp maps to three IP addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names that point to one IP address:

ns2.xserver.jp resolves to the IP address 35.72.43.26.

ns3.xserver.jp resolves to the IP address 202.226.36.247.

Mail Servers

optico.co.jp is served by just one mail server: optico.co.jp.

optico.co.jp resolves to 183.90.241.7 and no other IP number.