🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`ost.jp`

DNSSEC	⚠️ Not signed
A	210.224.185.196^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www2556.sakura.ne.jp`
NS	`master.dns.ne.jp` ⭐
		A	210.224.172.18^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`master.dns.ne.jp`
NS	`ns1.dns.ne.jp`
		A	61.211.236.1^{🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`ns1.dns.ne.jp`
NS	`ns2.dns.ne.jp`
		A	133.167.21.1^{🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan}
			PTR	`ns2.dns.ne.jp`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx4.googlemail.com`⁽³⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`aspmx5.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com include:spf.protection.outlook.com -all`
TXT	`ms-domain-verification=9a40c1ef-7b45-47a5-a911-c5c47c4b5f6a`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2026-04-30 #5

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1792003503

Same first word

ost.immo

ost.co.za

ost.am

ost.run

ost.network

ost.servehttp.com

ost.center

ost.hr

ost.com.cn

ost.to

ost.works

ost.biz.id

ost.solutions

ost.org.mx

ost.qc.ca

ost.se

ost.ch

ost.org.pl

ost.nl

ost.re

ost.at

ost.olsztyn.pl

ost.repair

ost.jp

ost.be

ost.hu

ost.es

ost.associates

ost.one

ost.org.il

ost.org.ph

ost.fm

ost.clinic

ost.vg

ost.org.uk

ost.studio

ost.workers.dev

ost.services

ost.al

ost.plus

ost.info

ost.nu

ost.pm

ost.tn

ost.lv

ost.ac

ost.dedyn.io

ost.im

ost.net.au

ost.com.tr

ost.enterprises

ost.kz

ost.vin

ost.com.mx

ost.dk

ost.com.bo

ost.today

ost.kh.ua

ost.group

ost.ru

ost.doctor

ost.yt

ost.ru.com

ost.in

ost.pp.ua

ost.ooo

ost.solar

ost.fan

ost.bounceme.net

ost.homes

ost.su

ost.de

ost.design

ost.by

ost.edu

ost.ltd

ost.org.cn

ost.lu

ost.bond

ost.monster

ost.rich

ost.io

ost.ai

ost.com.sg

ost.agency

ost.wiki

ost.co.uk

ost.ae

ost.cz

ost.mn

ost.xyz

ost.world

ost.mx

ost.net

ost.ms

ost.org

ost.cl

ost.lt

ost.li

ost.la

ost.com.cy

ost.or.kr

ost.fi

ost.party

ost.it

ost.org.ma

ost.com.ph

ost.ie

ost.com.sa

ost.org.ua

ost.co.th

ost.edu.sa

ost.i234.me

ost.schule

ost.ro

ost.app

ost.pt

ost.com.pl

ost.pl

ost.now.sh

ost.co

ost.reservd.com

ost.net.cn

ost.eu

ost.travel

ost.zapto.org

ost.haus

ost.ir

ost.in.ua

ost.sk

ost.sh

ost.si

ost.no

ost.zone

ost.gr

ost.ph

ost.edu.pl

ost.wang

ost.pages.dev

ost.co.in

ost.ovh

ost.tech

ost.tools

ost.com

ost.sg

ost.kiev.ua

ost.net.pl

ost.digital

ost.moe

ost.dev

ost.careers

ost.icu

ost.ad

ost.sa

ost.com.ro

ost.bf

ost.fr

ost.soy

ost.ind.br

Similar names

tso.net.cn

ots.lt

ots.sa.com

ost.swiss

sto.gg

sot.inf.br

sto.com.gt

sto.autos

ost.net.ph

ots.com.ru

ots.com.ua

ost.com.br

sto.mv

ost.cn

sot.pl

sto.sakura.ne.jp

tos.net.tr

tos.quest

ots.ca

sot.nz

sto.casino

ost.fyi

ots.org.pk

tos.biz.id

tso.my

sot.co.at

sot.org.sa

sto.si

sto.wtf

sto.sx

sot.support

tos.voyage

sto.tychy.pl

sto.skin

sto.cards

sot.world

sto.vinnica.ua

sto.ma

ots.ru

tso.nl

tso.ddns.net

sot.bz

sto.wf

ots.eu

sto.co.jp

tso.group

sto.com.tr

sto.su

ots.global

sto.me

tos.photos

sto.tw

sto.rent

sot.kg

tos.run

sto.vercel.app

tos.freeboxos.fr

tos.energy

tso.company

tos.earth

tos.org.au

ots.network

ots.gb.net

tos.ae

tso.si

ots.education

tso.tax

ots.systems

sto.email

ots.my.id

tso.delivery

tos.org

tos.is

sto.ru

sto.workers.dev

tos.vpnplus.to

sto.net.cn

tso.it

tos.be

tos.com.my

sto.lol

tos.cl

ots.blue

ots.lv

Previous names

osslicense.jp

ossm.jp

ossn.jp

ossnet.jp

ossnews.jp

osso-wake.jp

osso.jp

ossplum.jp

osss.jp

osst.jp

osstech.jp

osstem.jp

ossu.jp

ossuidou.jp

ossunorth.jp

ossur.jp

ossvyo.jp

ossy.jp

ossystem.jp

Next names

ost-garden.jp

ost-group.jp

ost-inc.jp

osta.jp

ostabalo-navi.jp

ostan.jp

ostart.jp

ostate.jp

ostberg.jp

ostbin.jp

ostc-childschool.jp

ostc.jp

ostco.jp

ostcure.jp

ostd.jp

oste-treat.jp

oste.jp

ostec.jp

ostech.jp

ostechgroup-recruit.jp

DNS History

13 records (11 active, 2 former)

●NSmaster.dns.ne.jp2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●NSns1.dns.ne.jp2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●NSns2.dns.ne.jp2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●MXalt1.aspmx.l.google.com2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●MXalt2.aspmx.l.google.com2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●MXaspmx.l.google.com2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●MXaspmx2.googlemail.com2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●MXaspmx3.googlemail.com2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●MXaspmx4.googlemail.com2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

●MXaspmx5.googlemail.com2015-07-16 → 2026-10-14 · 2 obs

● 2015-07-16 02:24:38
● 2026-10-14 20:12:00

○A210.224.185.1912020-12-01 → 2020-12-01 · 4 obs

○ 2017-08-14 02:14:38
● 2020-12-01 18:30:56
○ 2026-03-17 06:47:30
○ 2026-10-14 20:12:00

●A210.224.185.1962026-03-17 → 2026-10-14 · 3 obs

○ 2020-12-01 18:30:56
● 2026-03-17 06:47:30
● 2026-10-14 20:12:00

○A49.212.11.1762015-07-16 → 2017-08-14 · 4 obs

● 2015-07-16 02:24:38
● 2017-08-14 02:14:38
○ 2020-12-01 18:30:56
○ 2026-10-14 20:12:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
ost.jp	ns2.dns.ne.jp, ns1.dns.ne.jp	2 records

✅ Authoritative Response

Server:61.211.236.1

NS records: ns2.dns.ne.jp, ns1.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 769ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.224.185.196`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	7	`aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...`
TXT	2	`v=spf1 include:_spf.google.com include:s, ms-domain-verification=9a40c1ef-7b45-47a`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)

Analysis

IP Addresses

ost.jp has exactly one IP address — 210.224.185.196.

sannine.co.jp, hokurikuchuzai.co.jp, star-craft.org plus two other host names have IP numbers in common with ost.jp.

Name Servers

DNS for ost.jp is handled by three authoritative name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

ost.jp has at least partial name server overlap with other domains, such as deardevil.info, kentarofujii.net, momi-osaka.com and two others.

master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp all have one IP address each — master.dns.ne.jp directs to 210.224.172.18, ns1.dns.ne.jp directs to 61.211.236.1 and ns2.dns.ne.jp directs to 133.167.21.1.

Mail Servers

Mail for ost.jp is routed through 7 mail servers, including aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.

At least some of the mail servers used by ost.jp are shared with other domains: pasturenotes.com, zoomegle.com, aceroflex.com.pe and two others among them.

These mail servers are often deployed together with aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx2.googlemail.com has two IP addresses: 192.178.234.26 and 2800:3f0:4003:c14::1a.

aspmx3.googlemail.com has two IP addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx4.googlemail.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.

aspmx5.googlemail.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1a.

aspmx.l.google.com has two IP addresses: 172.253.63.27 and 2607:f8b0:4004:c1d::1a.

alt1.aspmx.l.google.com has two IP addresses: 192.178.234.26 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

Host names pointing to 2800:3f0:4003:c14::1a IP addresses: aspmx2.googlemail.com and alt1.aspmx.l.google.com.

Host names pointing to 192.178.234.26 IP addresses: aspmx2.googlemail.com and alt1.aspmx.l.google.com.

Host names pointing to 2a00:1450:400b:c02::1a IP addresses: aspmx3.googlemail.com and alt2.aspmx.l.google.com.