`fs.studyplus.co.jp`

DNSSEC	⚠️ Not signed
A	13.227.207.25^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
		PTR	`server-13-227-207-25.gru3.r.cloudfront.net`
A	13.227.207.31^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
A	13.227.207.84^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
A	13.227.207.106^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}

`studyplus.co.jp`

	DNSSEC	⚠️ Not signed
	NS	`ns-735.awsdns-27.net` ⭐
	NS	`ns-1488.awsdns-58.org`
	NS	`ns-1885.awsdns-43.co.uk`
	NS	`ns-247.awsdns-30.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`aspmx2.googlemail.com`⁽¹⁰⁾
	MX	`aspmx3.googlemail.com`⁽¹⁰⁾
	TXT	`google-site-verification=2k-vo1F8CpIe2COAm0CUcE2teZoYGgTHjNIlE6C8c10`
	TXT	`google-site-verification=A5CrV9w0cpRgyVa_UnJ8ZisMo6nw3GsbRYUnyYu8On0`
	TXT	`google-site-verification=naLFlXBZ8Hrnau84WLI34dv5EJbtD_L_3zaeg_86qlc`
	TXT	`google-site-verification=x2nc5eVdlPXfYSb2TP33XSJ4tl6ZBnC1TDZ5eUJ6qeo`
	SOA	`ns-735.awsdns-27.net`awsdns-hostmaster@amazon.com serial=1

rank #758263 globally
rank #13708 in the tld
📈 Tranco rank: #863,811

Same first word

fs.dk

fs.io

fs.capital

fs.com.pk

fs.business

fs.tj

fs.ro

fs.network

fs.no

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fs.wtf

fs.sk

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fs.or.kr

fs.am

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fs.com.au

fs.eti.br

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fs.to

fs.tel

fs.lc

fs.net

fs.org.ua

fs.com.br

fs.qa

fs.by

fs.com.hn

fs.ai

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fs.is

fs.life

fs.gov.cy

fs.tl

fs.school.za

fs.ru

fs.srv.br

fs.ax

fs.at

fs.com.gt

fs.investments

fs.org

fs.church

fs.money

fs.fi

fs.or.at

fs.gd

fs.mk

fs.gy

fs.com.my

fs.uz

fs.biz

fs.com.tw

fs.team

fs.zone

fs.net.pl

fs.ind.br

fs.al

fs.com.ua

fs.direct

fs.services

fs.wine

fs.aland.fi

fs.co.zw

fs.co.cr

fs.fr

fs.se

fs.net.tr

fs.com.pe

fs.cc

fs.si

fs.cx

fs.run

fs.ms

fs.kz

fs.rj.gov.br

fs.co.ua

fs.net.ua

fs.com.ni

fs.sa

fs.eu

fs.pl

fs.com.sv

fs.tn

fs.com.cn

fs.com.tr

fs.fyi

fs.cn

fs.hk

fs.be

fs.lt

fs.gov.za

fs.ee

fs.su

fs.com.pl

fs.co.za

fs.vg

fs.co

fs.expert

fs.net.cn

fs.cm

fs.co.ke

fs.jo

fs.chat

fs.digital

fs.ca

fs.hn.cn

fs.blog

fs.net.br

fs.agric.za

Similar names

sf.cm

sf.fyi

sf.my

sf.cn

sf.org.ua

sf.sh

sf.in.th

sf.house

sf.tax

sf.media

sf.tours

sf.ws

sf.lt

sf.gr

sf.com.tw

sf.pe

sf.lv

sf.sk

sf.ac.th

sf.net

sf.cool

sf.gov.cn

sf.dating

sf.edu

sf.io

sf.com.co

sf.is

sf.com.my

sf.no

sf.ph

sf.net.nz

sf.cl

sf.church

sf.legal

sf.co.th

sf.com.tr

sf.ddns.net

sf.bike

sf.fi

sf.ru

sf.lc

sf.dojin.com

sf.dog

sf.gl

sf.co

sf.co.at

sf.gg

sf.jx.cn

sf.express

sf.am

sf.guide

sf.run

sf.org

sf.de

sf.ltd

sf.deals

DNS History

47 records (4 active, 43 former)

○MXalt1.aspmx.l.google.com2018-09-29 → 2026-02-17 · 4 obs

● 2018-09-29 07:18:18
● 2026-02-17 06:42:58
○ 2026-02-17 10:40:56
○ 2026-03-31 04:36:02

○MXalt2.aspmx.l.google.com2018-09-29 → 2026-02-17 · 4 obs

● 2018-09-29 07:18:18
● 2026-02-17 06:42:58
○ 2026-02-17 10:40:56
○ 2026-03-31 04:36:02

○MXaspmx.l.google.com2018-09-29 → 2026-02-17 · 4 obs

● 2018-09-29 07:18:18
● 2026-02-17 06:42:58
○ 2026-02-17 10:40:56
○ 2026-03-31 04:36:02

○MXaspmx2.googlemail.com2018-09-29 → 2026-02-17 · 4 obs

● 2018-09-29 07:18:18
● 2026-02-17 06:42:58
○ 2026-02-17 10:40:56
○ 2026-03-31 04:36:02

○MXaspmx3.googlemail.com2018-09-29 → 2026-02-17 · 4 obs

● 2018-09-29 07:18:18
● 2026-02-17 06:42:58
○ 2026-02-17 10:40:56
○ 2026-03-31 04:36:02

○A13.226.155.1012026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:19:38
● 2026-03-22 12:52:10
○ 2026-03-22 15:16:28
○ 2026-03-31 04:36:02

○A13.226.155.642026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:19:38
● 2026-03-22 12:52:10
○ 2026-03-22 15:16:28
○ 2026-03-31 04:36:02

○A13.226.155.872026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:19:38
● 2026-03-22 12:52:10
○ 2026-03-22 15:16:28
○ 2026-03-31 04:36:02

○A13.226.155.912026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 09:19:38
● 2026-03-22 12:52:10
○ 2026-03-22 15:16:28
○ 2026-03-31 04:36:02

●A13.227.207.1062026-03-28 → 2026-03-31 · 23 obs

○ 2026-03-27 20:19:10
● 2026-03-28 13:30:40
● 2026-03-28 15:37:48
○ 2026-03-28 17:17:22
● 2026-03-28 19:39:48
○ 2026-03-28 21:40:32
○ 2026-03-28 22:28:24
● 2026-03-28 23:19:56
● 2026-03-29 03:57:46
○ 2026-03-29 04:45:42
● 2026-03-29 11:08:16
○ 2026-03-29 15:11:54
○ 2026-03-29 16:43:40
● 2026-03-29 19:22:28
○ 2026-03-29 21:34:56
● 2026-03-29 23:39:24
○ 2026-03-30 01:18:12
○ 2026-03-30 04:06:44
● 2026-03-30 09:18:46
○ 2026-03-30 16:47:04
○ 2026-03-30 22:43:02
● 2026-03-31 04:36:00
● 2026-03-31 04:36:02

●A13.227.207.252026-03-28 → 2026-03-31 · 23 obs

●A13.227.207.312026-03-28 → 2026-03-31 · 23 obs

●A13.227.207.842026-03-28 → 2026-03-31 · 23 obs

○A13.33.235.1092026-03-24 → 2026-03-26 · 9 obs

○ 2026-03-24 09:56:08
● 2026-03-24 13:08:42
○ 2026-03-24 13:50:40
● 2026-03-24 14:46:16
○ 2026-03-24 18:47:58
○ 2026-03-26 05:21:22
● 2026-03-26 05:56:28
○ 2026-03-26 08:12:20
○ 2026-03-31 04:36:02

○A13.33.235.582026-03-24 → 2026-03-26 · 9 obs

○A13.33.235.632026-03-24 → 2026-03-26 · 9 obs

○A13.33.235.942026-03-24 → 2026-03-26 · 9 obs

○A13.35.78.1032026-02-15 → 2026-03-27 · 126 obs

○ 2026-02-15 14:16:58
○ 2026-02-15 22:01:58
● 2026-02-15 22:33:10
○ 2026-02-15 23:07:26
○ 2026-02-16 02:48:38
● 2026-02-16 20:53:32
● 2026-02-17 06:42:58
○ 2026-02-17 10:40:56
○ 2026-02-17 19:13:30
● 2026-02-17 21:24:48
○ 2026-02-17 23:07:40
○ 2026-02-18 01:47:34
● 2026-02-18 02:24:44
○ 2026-02-18 07:25:06
○ 2026-02-18 20:18:32
● 2026-02-19 05:30:56
○ 2026-02-19 11:24:58
○ 2026-02-19 21:42:14
● 2026-02-20 14:48:56
○ 2026-02-20 21:09:42
● 2026-02-21 14:04:54
● 2026-02-21 15:22:38
○ 2026-02-22 05:18:58
○ 2026-02-22 10:32:42
● 2026-02-22 16:50:28
● 2026-02-22 19:37:14
○ 2026-02-22 23:08:00
○ 2026-02-23 20:31:42
● 2026-02-23 21:45:04
● 2026-02-24 04:16:54
○ 2026-02-24 06:32:28
● 2026-02-24 18:58:18
○ 2026-02-24 20:12:46
○ 2026-02-25 11:06:52
● 2026-02-25 13:26:08
○ 2026-02-25 21:05:46
○ 2026-02-26 08:35:28
● 2026-02-26 11:57:58
○ 2026-02-26 20:21:10
● 2026-02-27 02:28:02
● 2026-02-27 06:34:46
○ 2026-02-27 11:18:34
● 2026-02-27 14:13:58
● 2026-02-28 00:13:24
○ 2026-02-28 04:42:08
○ 2026-02-28 05:12:58
● 2026-02-28 13:51:30
○ 2026-02-28 14:24:42
● 2026-02-28 17:15:08
● 2026-03-01 05:37:44
○ 2026-03-01 06:32:40
○ 2026-03-01 07:15:32
● 2026-03-01 16:58:04
○ 2026-03-01 17:52:48
○ 2026-03-02 03:18:22
● 2026-03-02 05:01:54
● 2026-03-02 20:29:48
○ 2026-03-02 23:07:38
○ 2026-03-03 00:15:14
● 2026-03-03 02:39:10
○ 2026-03-03 04:57:00
○ 2026-03-04 01:49:22
● 2026-03-04 07:59:58
○ 2026-03-04 12:13:46
○ 2026-03-04 18:18:46
● 2026-03-05 17:54:04
○ 2026-03-05 20:31:10
○ 2026-03-06 23:36:50
● 2026-03-07 00:13:16
○ 2026-03-07 01:12:34
● 2026-03-07 02:59:30
○ 2026-03-07 04:14:18
○ 2026-03-10 05:15:20
● 2026-03-10 10:09:24
○ 2026-03-10 18:05:02
● 2026-03-10 22:11:16
○ 2026-03-10 23:08:10
○ 2026-03-11 04:31:24
● 2026-03-11 13:50:10
○ 2026-03-11 23:08:26
○ 2026-03-13 07:09:18
● 2026-03-14 00:43:40
○ 2026-03-14 01:34:10
○ 2026-03-16 11:31:02
● 2026-03-16 15:00:00
○ 2026-03-16 19:03:36
○ 2026-03-17 01:16:56
● 2026-03-17 02:48:06
○ 2026-03-17 05:29:56
○ 2026-03-17 15:29:40
● 2026-03-17 18:39:30
○ 2026-03-17 20:24:58
● 2026-03-18 00:02:16
● 2026-03-18 01:56:16
○ 2026-03-18 03:12:20
● 2026-03-18 05:28:54
○ 2026-03-18 07:06:50
○ 2026-03-18 15:41:10
● 2026-03-19 00:03:26
○ 2026-03-19 03:01:22
○ 2026-03-19 05:58:18
● 2026-03-19 11:04:08
○ 2026-03-19 15:27:20
○ 2026-03-20 07:58:42
● 2026-03-20 11:19:18
○ 2026-03-20 14:12:54
○ 2026-03-21 21:03:04
● 2026-03-22 05:57:16
● 2026-03-22 09:19:38
○ 2026-03-22 12:52:10
○ 2026-03-22 18:38:26
● 2026-03-23 00:13:56
● 2026-03-23 07:27:26
○ 2026-03-23 11:34:14
○ 2026-03-24 18:47:58
● 2026-03-25 11:22:26
○ 2026-03-25 15:33:28
● 2026-03-25 23:08:40
● 2026-03-26 00:13:38
○ 2026-03-26 04:09:48
● 2026-03-26 05:21:22
○ 2026-03-26 05:56:28
○ 2026-03-27 02:32:28
● 2026-03-27 09:55:22
○ 2026-03-27 20:19:10
○ 2026-03-31 04:36:02

○A13.35.78.52026-02-15 → 2026-03-27 · 126 obs

○A13.35.78.542026-02-15 → 2026-03-27 · 126 obs

○A13.35.78.72026-02-15 → 2026-03-27 · 126 obs

○A18.154.132.1022026-02-16 → 2026-03-19 · 75 obs

○ 2026-02-15 23:07:26
● 2026-02-16 02:48:38
○ 2026-02-16 20:53:32
○ 2026-02-18 07:25:06
● 2026-02-18 12:35:14
● 2026-02-18 19:21:26
○ 2026-02-18 20:18:32
○ 2026-02-19 05:30:56
● 2026-02-19 11:24:58
○ 2026-02-19 13:24:38
○ 2026-02-22 05:18:58
● 2026-02-22 10:32:42
○ 2026-02-22 16:50:28
○ 2026-02-24 20:12:46
● 2026-02-25 09:24:36
○ 2026-02-25 11:06:52
○ 2026-02-26 03:09:22
● 2026-02-26 08:35:28
○ 2026-02-26 11:57:58
○ 2026-02-27 06:34:46
● 2026-02-27 11:18:34
○ 2026-02-27 14:13:58
○ 2026-02-28 00:13:24
● 2026-02-28 04:42:08
● 2026-02-28 05:12:58
○ 2026-02-28 13:51:30
○ 2026-03-01 05:37:44
● 2026-03-01 06:32:40
● 2026-03-01 07:15:32
○ 2026-03-01 16:58:04
● 2026-03-01 17:52:48
○ 2026-03-01 18:35:28
○ 2026-03-02 23:07:38
● 2026-03-03 00:15:14
○ 2026-03-03 02:39:10
● 2026-03-03 04:57:00
○ 2026-03-03 14:05:46
○ 2026-03-05 20:31:10
● 2026-03-06 14:22:22
○ 2026-03-06 20:25:26
○ 2026-03-09 03:01:00
● 2026-03-09 04:45:32
○ 2026-03-10 02:15:46
○ 2026-03-10 10:09:24
● 2026-03-10 18:05:02
○ 2026-03-10 22:11:16
○ 2026-03-11 23:08:26
● 2026-03-12 03:33:24
○ 2026-03-12 04:28:30
○ 2026-03-12 14:38:08
● 2026-03-12 20:46:12
○ 2026-03-13 07:09:18
○ 2026-03-14 14:53:52
● 2026-03-14 16:37:34
○ 2026-03-14 18:43:34
● 2026-03-14 19:55:16
● 2026-03-14 20:53:08
○ 2026-03-15 02:39:38
○ 2026-03-15 17:54:22
● 2026-03-15 22:39:20
○ 2026-03-16 01:49:46
○ 2026-03-16 15:00:00
● 2026-03-16 19:03:36
● 2026-03-17 01:16:56
○ 2026-03-17 02:48:06
○ 2026-03-17 08:39:46
● 2026-03-17 15:29:40
○ 2026-03-17 18:39:30
○ 2026-03-18 09:51:06
● 2026-03-18 11:10:50
○ 2026-03-18 15:41:10
○ 2026-03-19 00:03:26
● 2026-03-19 03:01:22
○ 2026-03-19 05:58:18
○ 2026-03-31 04:36:02

○A18.154.132.1152026-02-16 → 2026-03-19 · 75 obs

○A18.154.132.622026-02-16 → 2026-03-19 · 75 obs

○A18.154.132.742026-02-16 → 2026-03-19 · 75 obs

○A18.173.5.242026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 15:58:10
● 2026-03-22 18:38:26
○ 2026-03-23 00:13:56
○ 2026-03-31 04:36:02

○A18.173.5.52026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 15:58:10
● 2026-03-22 18:38:26
○ 2026-03-23 00:13:56
○ 2026-03-31 04:36:02

○A18.173.5.692026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 15:58:10
● 2026-03-22 18:38:26
○ 2026-03-23 00:13:56
○ 2026-03-31 04:36:02

○A18.173.5.842026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-22 15:58:10
● 2026-03-22 18:38:26
○ 2026-03-23 00:13:56
○ 2026-03-31 04:36:02

○A18.245.218.1122026-02-15 → 2026-03-30 · 172 obs

○ 2018-09-29 07:18:18
● 2026-02-15 14:16:58
● 2026-02-15 22:01:58
○ 2026-02-15 22:33:10
● 2026-02-15 23:07:26
○ 2026-02-16 02:48:38
○ 2026-02-17 06:42:58
● 2026-02-17 10:40:56
● 2026-02-17 19:13:30
○ 2026-02-17 21:24:48
● 2026-02-17 23:07:40
● 2026-02-18 01:47:34
○ 2026-02-18 02:24:44
● 2026-02-18 07:25:06
○ 2026-02-18 12:35:14
○ 2026-02-18 19:21:26
● 2026-02-18 20:18:32
○ 2026-02-19 05:30:56
○ 2026-02-19 11:24:58
● 2026-02-19 13:24:38
● 2026-02-19 21:42:14
○ 2026-02-20 14:48:56
● 2026-02-20 21:09:42
○ 2026-02-21 14:04:54
○ 2026-02-21 15:22:38
● 2026-02-22 05:18:58
○ 2026-02-22 10:32:42
○ 2026-02-22 19:37:14
● 2026-02-22 23:08:00
● 2026-02-23 20:31:42
○ 2026-02-23 21:45:04
○ 2026-02-24 04:16:54
● 2026-02-24 06:32:28
○ 2026-02-24 18:58:18
● 2026-02-24 20:12:46
○ 2026-02-25 09:24:36
● 2026-02-25 11:06:52
○ 2026-02-25 13:26:08
● 2026-02-25 21:05:46
● 2026-02-26 03:09:22
○ 2026-02-26 08:35:28
○ 2026-02-26 11:57:58
● 2026-02-26 20:21:10
○ 2026-02-27 02:28:02
○ 2026-02-28 13:51:30
● 2026-02-28 14:24:42
○ 2026-02-28 17:15:08
○ 2026-03-01 17:52:48
● 2026-03-01 18:35:28
● 2026-03-02 03:18:22
○ 2026-03-02 05:01:54
○ 2026-03-02 20:29:48
● 2026-03-02 23:07:38
○ 2026-03-03 00:15:14
○ 2026-03-03 04:57:00
● 2026-03-03 14:05:46
● 2026-03-04 01:49:22
○ 2026-03-04 07:59:58
● 2026-03-04 12:13:46
● 2026-03-04 18:18:46
○ 2026-03-05 17:54:04
● 2026-03-05 20:31:10
○ 2026-03-06 14:22:22
● 2026-03-06 20:25:26
● 2026-03-06 23:36:50
○ 2026-03-07 00:13:16
● 2026-03-07 01:12:34
○ 2026-03-07 02:59:30
● 2026-03-07 04:14:18
○ 2026-03-07 21:20:46
● 2026-03-08 05:50:28
● 2026-03-09 03:01:00
○ 2026-03-09 04:45:32
● 2026-03-10 02:15:46
● 2026-03-10 05:15:20
○ 2026-03-10 10:09:24
○ 2026-03-10 22:11:16
● 2026-03-10 23:08:10
● 2026-03-11 04:31:24
○ 2026-03-11 13:50:10
● 2026-03-11 23:08:26
○ 2026-03-12 03:33:24
● 2026-03-12 04:28:30
● 2026-03-12 05:01:12
○ 2026-03-12 11:40:24
○ 2026-03-12 20:46:12
● 2026-03-13 07:09:18
○ 2026-03-14 00:43:40
● 2026-03-14 01:34:10
● 2026-03-14 14:53:52
○ 2026-03-14 16:37:34
● 2026-03-14 18:43:34
○ 2026-03-14 19:55:16
○ 2026-03-14 20:53:08
● 2026-03-15 02:39:38
● 2026-03-15 17:54:22
○ 2026-03-15 22:39:20
● 2026-03-16 01:49:46
● 2026-03-16 11:31:02
○ 2026-03-16 15:00:00
○ 2026-03-17 02:48:06
● 2026-03-17 05:29:56
● 2026-03-17 08:39:46
○ 2026-03-17 15:29:40
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○A18.245.218.1172026-02-15 → 2026-03-30 · 172 obs

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○A18.245.218.912026-02-15 → 2026-03-30 · 172 obs

○A3.169.231.1092026-03-12 → 2026-03-12 · 5 obs

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○A52.68.116.1652018-09-29 → 2018-09-29 · 3 obs

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○A54.64.241.2362018-09-29 → 2018-09-29 · 3 obs

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○A99.84.160.102026-03-07 → 2026-03-07 · 4 obs

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○A99.84.160.1042026-03-07 → 2026-03-07 · 4 obs

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○A99.84.160.1052026-03-07 → 2026-03-07 · 4 obs

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○A99.84.160.502026-03-07 → 2026-03-07 · 4 obs

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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, f.dns.jp, g.dns.jp, c.dns.jp...	-
studyplus.co.jp	ns-735.awsdns-27.net, ns-1488.awsdns-58.org, ns-1885.awsdns-43.co.uk, ns-247.awsdns-30.com	-

✅ Authoritative Response

Server:205.251.199.93

NS records: ns-735.awsdns-27.net, ns-1488.awsdns-58.org, ns-1885.awsdns-43.co.uk, ns-247.awsdns-30.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyplus.co.jp (unsigned zone)

⏱️ Timing

Total: 986ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.227.207.31, 13.227.207.84...`

Analysis

IP Addresses

Four IP numbers are pointed to by fs.studyplus.co.jp: 13.227.207.25, 13.227.207.31, 13.227.207.84 and 13.227.207.106.

other host names including chasecureton.com, mnawsb.launches.appsflyersdk.com, ceipre.conversions.appsflyersdk.com, d1abwmxs72py4b.cloudfront.net and d35i6e7ob99atx.cloudfront.net share IP numbers with fs.studyplus.co.jp.

fs.studyplus.co.jp - robtex.com