`mail.webmasters.jp`

DNSSEC	⚠️ Not signed
A	220.208.131.153^{🇯🇵 CORALNET220.208.128.0/18 REACH (Customer Route)}
		PTR	`rev220208131153.coralnet.or.jp`

`webmasters.jp`

	DNSSEC	⚠️ Not signed
	A	220.208.131.153^{🇯🇵 CORALNET220.208.128.0/18 REACH (Customer Route)}
	NS	`sv101.tnm-idc.jp` ⭐
	NS	`ns0.tnm-idc.jp`
	MX	`mail.webmasters.jp` ⭐
	TXT	`v=spf1 +a +mx +a:sv101.tnm-idc.jp ~all`
	SOA	`sv101.tnm-idc.jp`info@tnm-idc.jp 2023-08-21 #2

WOT: SAFE (63/100)
WOT: SAFE (70/100)

MX for

webmasters.jp

Previously MX for

www.webmasters.jp

Same first word

mail.com.py

mail.guru

mail.bing

mail.lv

mail.babyblue.jp

mail.in-berlin.de

mail.no-ip.biz

mail.host

mail.management

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mail.mg.gov.br

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mail.report

mail.fail

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mail.blogspot.com

mail.gob.bo

mail.dnsfor.me

mail.dix.asia

mail.sg

mail.eu.com

mail.camp

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mail.kikirara.jp

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mail.hr

mail.gov.tn

mail.pb.gov.br

mail.oops.jp

mail.eu

mail.(0x7075737379)cat.jp

mail.tm

mail.boo.jp

mail.co.za

mail.zp.ua

mail.ac.me

mail.info.at

mail.nis.za

mail.gov.ua

mail.net.ua

mail.com.au

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mail.gov.vc

mail.realm.cz

mail.vu

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mail.mayfirst.org

mail.systems

mail.itigo.jp

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mail.babymilk.jp

mail.gov.by

mail.chat

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mail.gov.ps

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mail.team

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mail.tn

mail.serveftp.com

mail.by

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mail.virtualuser.de

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mail.exchange

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mail.lk3.ru

mail.com.mk

mail.ap.gov.br

mail.dp.ua

mail.myjino.ru

mail.space

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mail.rr.gov.br

mail.read-books.org

mail.ilovecollege.info

mail.gmx

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mail.site

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mail.ws

mail.holiday

mail.zombie.jp

mail.ma

mail.mr

mail.gov.af

mail.hashbang.sh

mail.mil.ru

mail.schwarz

mail.co.uk

mail.net.mk

mail.rj.gov.br

mail.freedesktop.org

mail.direct

mail.yandex

mail.sh.cn

mail.vacations

mail.my

mail.gov.mz

mail.gov.ph

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DNS History

2 records (1 active, 1 former)

●A220.208.131.1532026-02-15 → 2026-03-28 · 3 obs

○ 2020-02-24 09:29:32
● 2026-02-15 16:03:30
● 2026-03-28 11:45:56

○A59.106.147.2262015-03-22 → 2020-02-24 · 4 obs

● 2015-03-22 14:07:58
● 2020-02-24 09:29:32
○ 2026-02-15 16:03:30
○ 2026-03-28 11:45:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
webmasters.jp	sv101.tnm-idc.jp, ns0.tnm-idc.jp	2 records

✅ Authoritative Response

Server:220.208.131.5

NS records: sv101.tnm-idc.jp, ns0.tnm-idc.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for webmasters.jp (unsigned zone)

⏱️ Timing

Total: 707ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`220.208.131.153`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns0.tnm-idc.jp, sv101.tnm-idc.jp)

Analysis

Mail Server Role

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

IP Addresses

mail.webmasters.jp resolves to one IP number: 220.208.131.153.

Other host names, for instance ns2.webmasters.jp, webmasters.jp and rev220208131153.coralnet.or.jp share IP numbers with mail.webmasters.jp.

mail.webmasters.jp - robtex.com