rerf.jp - dns.ninja

rerf.jp

DNSSEC⚠️ Not signed
NSns1.rerf.or.jp ⭐
A157.7.1.2🇯🇵 SINET-AS157.7.0.0/19 Housyasen
PTRns1.rerf.or.jp
NSns2.rerf.or.jp
A157.7.1.4🇯🇵 SINET-AS157.7.0.0/19 Housyasen
PTRns2.rerf.or.jp
MXrerf-jp.mail.protection.outlook.com ⭐
A2a01:111:f403:cc1a::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-ty3p286cu00101.inbound.protection.outlook.com
A2a01:111:f403:cc1a::2🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tyvp286cu00302.inbound.protection.outlook.com
A2a01:111:f403:cc1f::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os9p286cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc1f::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01201.inbound.protection.outlook.com
A52.101.124.0🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tycp286cu02600.inbound.protection.outlook.com
A52.101.124.1🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ty3p286cu00101.inbound.protection.outlook.com
A52.101.157.11🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01203.inbound.protection.outlook.com
A52.101.157.40🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os9p286cu00100.inbound.protection.outlook.com
TXTv=spf1 mx include:spf.protection.outlook.com include:_spf.salesforce.com ~all
SOAns1.rerf.or.jphostmaster@rerf.or.jp 2026-03-16 #2

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=1781373603
rank #850375 globally
rank #16139 in the tld
WOT: SAFE (92/100)

Subdomains

www.rerf.jp

Same first word

rerf.or.jp
rerf.in
rerf.jp
rerf.net
rerf.us
rerf.com

Similar names

errf.xyz
refr.us
rfer.us
frer.de
frre.com
ferr.ca
frre.de
rfre.org
refr.de
rfer.ee
frer.ru
refr.co
refr.net
efrr.org
frre.ru
efrr.com
ferr.nl
rref.org
erfr.xyz
ferr.fr
ferr.es
refr.ru
frre.fr
refr.la
frer.com.ar
frer.fr
rfer.al
frre.net
ferr.us
ferr.in
frer.cz
refr.at
ferr.at
refr.eu
errf.org
rrfe.com
ferr.net
frer.co
ferr.ru
ferr.jp
ferr.co
refr.org
refr.com
rrfe.org
rfer.be
rref.net
refr.ca
rfer.de
ferr.org
ferr.de
refr.nl
rfer.com
rref.com
rfer.me
refr.cc
rfre.com.au
frer.it
rrfe.co.in
erfr.com
ferr.eu
rfre.com
ferr.it

DNS History

8 records (3 active, 5 former)

20162017201820192020202120222023202420252026NSns1.rerf.or.jpns2.rerf.or.jpwww.rerf.or.jpMXrerf-jp.mail.protection.outlook.comclearswift.rerf.jpironmail2.rerf.or.jpmailgw.rerf.or.jpA157.7.1.4
●NSns1.rerf.or.jp2015-07-22 → 2026-06-13 · 2 obs
● 2015-07-22 07:05:42
● 2026-06-13 18:35:30
●NSns2.rerf.or.jp2020-10-29 → 2026-06-13 · 3 obs
○ 2017-03-30 04:47:06
● 2020-10-29 03:10:08
● 2026-06-13 18:35:30
○NSwww.rerf.or.jp2015-07-22 → 2017-03-30 · 4 obs
● 2015-07-22 07:05:42
● 2017-03-30 04:47:06
○ 2020-10-29 03:10:08
○ 2026-06-13 18:35:30
○MXclearswift.rerf.jp2015-07-22 → 2016-08-19 · 4 obs
● 2015-07-22 07:05:42
● 2016-08-19 03:24:00
○ 2017-03-30 04:47:06
○ 2026-06-13 18:35:30
○MXironmail2.rerf.or.jp2015-07-22 → 2016-08-19 · 4 obs
● 2015-07-22 07:05:42
● 2016-08-19 03:24:00
○ 2017-03-30 04:47:06
○ 2026-06-13 18:35:30
○MXmailgw.rerf.or.jp2017-03-30 → 2020-10-29 · 5 obs
○ 2016-08-19 03:24:00
● 2017-03-30 04:47:06
● 2020-10-29 03:10:08
○ 2026-03-07 08:13:14
○ 2026-06-13 18:35:30
●MXrerf-jp.mail.protection.outlook.com2026-03-07 → 2026-06-13 · 3 obs
○ 2020-10-29 03:10:08
● 2026-03-07 08:13:14
● 2026-06-13 18:35:30
○A157.7.1.42015-07-22 → 2017-03-30 · 4 obs
● 2015-07-22 07:05:42
● 2017-03-30 04:47:06
○ 2020-10-29 03:10:08
○ 2026-06-13 18:35:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
rerf.jpns1.rerf.or.jp, ns2.rerf.or.jp2 records

✅ Authoritative Response

Server:157.7.1.2

NS records: ns1.rerf.or.jp, ns2.rerf.or.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rerf.jp (unsigned zone)

⏱️ Timing

Total: 927ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns1.rerf.or.jp, ns2.rerf.or.jp
MX1rerf-jp.mail.protection.outlook.com (pri
TXT1v=spf1 mx include:spf.protection.outlook
SOA1ns1.rerf.or.jp hostmaster.rerf.or.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.rerf.or.jp, ns1.rerf.or.jp)

Analysis

Hierarchy

The domain www.rerf.jp falls under the parent rerf.jp.

Name Servers

Two name servers handle the delegation for rerf.jp: ns1.rerf.or.jp and ns2.rerf.or.jp.

rerf.jp shares its name server setup with other domains, including 20.7.157.in-addr.arpa, 2.7.157.in-addr.arpa, 1.7.157.in-addr.arpa and two others.

Each of ns1.rerf.or.jp and ns2.rerf.or.jp has one IP address: ns1.rerf.or.jp uses 157.7.1.2 and ns2.rerf.or.jp uses 157.7.1.4.

Mail Servers

rerf.jp has one mail server: rerf-jp.mail.protection.outlook.com.

rerf-jp.mail.protection.outlook.com points to 8 IP numbers: 52.101.124.0, 52.101.124.1, 52.101.157.11 and 5 other.