backs.jp - dns.ninja

backs.jp

DNSSEC⚠️ Not signed
A112.78.121.42🇯🇵 SAKURA-C112.78.112.0/20 (4/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTR42.121.78.112.static.www345b.sakura.ne.jp
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 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
PTRns2.dns.ne.jp
MXbacks.jp ⭐
A112.78.121.42🇯🇵 SAKURA-C112.78.112.0/20 (4/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTR42.121.78.112.static.www345b.sakura.ne.jp
TXTv=spf1 a:www345b.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2016-12-08 #13

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=1783190703
WOT: SAFE (19/100)

MX for

backs.jp

Subdomains

mail.backs.jp

Same first word

backs.se
backs.eu
backs.jp
backs.co.uk
backs.com
backs.nu
backs.it
backs.co.jp
backs.de
backs.no
backs.dk
backs.net
backs.ch
backs.xyz
backs.pl

Similar names

kbcsa.org.au
cbask.sk
cskba.co.za
abcks.gov
abcks.com
aksbc.com
abkcs.com
akcsb.com
kbcsa.com
bacsk.com
kbsca.com
askcb.co
kabsc.com
kbcsa.co.za
skbac.ac.th
askcb.com
bkasc.com
askbc.com
skcab.se
skbca.com
sbcak.fi
sback.com
absck.com
csakb.org
sback.de
bkacs.com
abcsk.com
kbsac.com
basck.com
basck.org
bcask.com
bcksa.com
sbakc.com
sback.org
bacsk.cn
kacsb.com
ackbs.com
abcsk.sk

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpnsas1.firstserver.ne.jpnsas2.firstserver.ne.jpMXbacks.jpmail.backs.jpmx1.firstserver.ne.jpmx2.firstserver.ne.jpA112.78.121.42203.183.20.154
●NSmaster.dns.ne.jp2016-12-20 → 2026-07-04 · 3 obs
○ 2016-12-06 05:21:22
● 2016-12-20 18:34:14
● 2026-07-04 19:41:36
●NSns1.dns.ne.jp2016-12-20 → 2026-07-04 · 3 obs
○ 2016-12-06 05:21:22
● 2016-12-20 18:34:14
● 2026-07-04 19:41:36
●NSns2.dns.ne.jp2016-12-20 → 2026-07-04 · 3 obs
○ 2016-12-06 05:21:22
● 2016-12-20 18:34:14
● 2026-07-04 19:41:36
○NSnsas1.firstserver.ne.jp2015-08-20 → 2016-12-06 · 4 obs
● 2015-08-20 16:06:10
● 2016-12-06 05:21:22
○ 2016-12-20 18:34:14
○ 2026-07-04 19:41:36
○NSnsas2.firstserver.ne.jp2015-08-20 → 2016-12-06 · 4 obs
● 2015-08-20 16:06:10
● 2016-12-06 05:21:22
○ 2016-12-20 18:34:14
○ 2026-07-04 19:41:36
●MXbacks.jp2016-12-20 → 2026-07-04 · 3 obs
○ 2016-12-06 05:21:22
● 2016-12-20 18:34:14
● 2026-07-04 19:41:36
○MXmail.backs.jp2015-08-20 → 2016-12-06 · 4 obs
● 2015-08-20 16:06:10
● 2016-12-06 05:21:22
○ 2016-12-20 18:34:14
○ 2026-07-04 19:41:36
○MXmx1.firstserver.ne.jp2015-08-20 → 2016-12-06 · 4 obs
● 2015-08-20 16:06:10
● 2016-12-06 05:21:22
○ 2016-12-20 18:34:14
○ 2026-07-04 19:41:36
○MXmx2.firstserver.ne.jp2015-08-20 → 2016-12-06 · 4 obs
● 2015-08-20 16:06:10
● 2016-12-06 05:21:22
○ 2016-12-20 18:34:14
○ 2026-07-04 19:41:36
●A112.78.121.422016-12-20 → 2026-07-04 · 3 obs
○ 2016-12-06 05:21:22
● 2016-12-20 18:34:14
● 2026-07-04 19:41:36
○A203.183.20.1542015-08-20 → 2016-12-06 · 4 obs
● 2015-08-20 16:06:10
● 2016-12-06 05:21:22
○ 2016-12-20 18:34:14
○ 2026-07-04 19:41:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
backs.jpns1.dns.ne.jp, ns2.dns.ne.jp2 records

✅ Authoritative Response

Server:133.167.21.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for backs.jp (unsigned zone)

⏱️ Timing

Total: 937ms | Queries: -

📄 Records

TypeCountSample Data
A1112.78.121.42
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1backs.jp (pri: 10)
TXT1v=spf1 a:www345b.sakura.ne.jp mx ~all
SOA1master.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

Hierarchy

The domain mail.backs.jp falls under the parent backs.jp.

Mail Server Role

backs.jp is listed as a mail server for itself.

IP Addresses

backs.jp resolves to one IP address: 112.78.121.42.

Other host names share IP numbers with backs.jp; 42.121.78.112.static.www345b.sakura.ne.jp is one such example.

Name Servers

Three name servers are authoritative for backs.jp: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

At least some of backs.jp's name servers are shared with other domains, for example sniburi.com, prohobby.sakura.ne.jp, rightmind.jp and two more.

Three hostnames, one IP address apiece: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.

Mail Servers

Mail for backs.jp is handled by one mail server — backs.jp.

There is one IP number for backs.jp: 112.78.121.42.