undo.jp - dns.ninja

undo.jp

DNSSEC⚠️ Not signed
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
SOAmaster.dns.ne.jptech@sakura.ad.jp 2026-05-01 #1

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=1784743203
rank #137265 globally
rank #2686 in the tld
📈 Tranco rank: #318,959

Subdomains

mdo.undo.jp
jwwfaq.undo.jp
yugu.undo.jp
spc.undo.jp
informel.undo.jp
all.undo.jp
undonut.undo.jp
jack.undo.jp
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tmkk.undo.jp
koeno.undo.jp
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Same first word

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DNS History

3 records (3 active, 0 former)

201020122014201620182020202220242026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jp
●NSmaster.dns.ne.jp2015-09-03 → 2026-07-22 · 3 obs
○ 2009-07-03 04:22:54
● 2015-09-03 21:49:08
● 2026-07-22 18:43:16
●NSns1.dns.ne.jp2009-07-03 → 2026-07-22 · 2 obs
● 2009-07-03 04:22:54
● 2026-07-22 18:43:16
●NSns2.dns.ne.jp2009-07-03 → 2026-07-22 · 2 obs
● 2009-07-03 04:22:54
● 2026-07-22 18:43:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpd.dns.jp, e.dns.jp, f.dns.jp, c.dns.jp...-
undo.jpns1.dns.ne.jp, ns2.dns.ne.jp2 records

✅ Authoritative Response

Server:61.211.236.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for undo.jp (unsigned zone)

⏱️ Timing

Total: 555ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
SOA1master.dns.ne.jp tech.sakura.ad.jp

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

undo.jp is a parent domain; its children include mdo.undo.jp, jwwfaq.undo.jp, yugu.undo.jp, spc.undo.jp, informel.undo.jp and a few other host names.

Name Servers

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

undo.jp partially shares its NS delegation with several other domains, including malignant.jpn.org, solidfromphoto.sakura.ne.jp, vrap.org and two others.

These name servers often co-occur with the name servers dns.sakura.ad.jp.

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.