leetcode.jp - dns.ninja

leetcode.jp

DNSSEC⚠️ Not signed
A49.212.198.109🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww2899.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
MXleetcode.jp ⭐
A49.212.198.109🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww2899.sakura.ne.jp
TXTv=spf1 a:www2899.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2019-09-26 #23

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=1781406902

MX for

leetcode.jp

Same first word

leetcode.in
leetcode.ca
leetcode.io
leetcode.net
leetcode.uz
leetcode.pro
leetcode.com
leetcode.wang
leetcode.codes
leetcode.co
leetcode.jp
leetcode.cn

Similar names

codeleet.com
telecode.com.br
codetele.com
telecode.co.il
teledeco.com
teledoce.com.uy
telecode.ru
teledoce.com
deteleco.com
eteledoc.com
telecode.net
telecode.co
deleteco.com
telecode.de
teledoce.net
telecode.com
leetocde.com
codelete.com
letecode.com

DNS History

5 records (5 active, 0 former)

202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXleetcode.jpA49.212.198.109
●NSmaster.dns.ne.jp2020-03-05 → 2026-06-14 · 2 obs
● 2020-03-05 06:43:36
● 2026-06-14 03:38:04
●NSns1.dns.ne.jp2020-03-05 → 2026-06-14 · 2 obs
● 2020-03-05 06:43:36
● 2026-06-14 03:38:04
●NSns2.dns.ne.jp2020-03-05 → 2026-06-14 · 2 obs
● 2020-03-05 06:43:36
● 2026-06-14 03:38:04
●MXleetcode.jp2020-03-05 → 2026-06-14 · 2 obs
● 2020-03-05 06:43:36
● 2026-06-14 03:38:04
●A49.212.198.1092020-03-05 → 2026-06-14 · 2 obs
● 2020-03-05 06:43:36
● 2026-06-14 03:38:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpd.dns.jp, h.dns.jp, f.dns.jp, e.dns.jp...-
leetcode.jpns2.dns.ne.jp, ns1.dns.ne.jp2 records

✅ Authoritative Response

Server:133.167.21.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for leetcode.jp (unsigned zone)

⏱️ Timing

Total: 582ms | Queries: -

📄 Records

TypeCountSample Data
A149.212.198.109
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1leetcode.jp (pri: 10)
TXT1v=spf1 a:www2899.sakura.ne.jp mx ~all
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

Mail Server Role

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

IP Addresses

leetcode.jp resolves to one IP address: 49.212.198.109.

jmaac.co.jp, ohta-hp.com, suiseien.com and two other host names share IP numbers with leetcode.jp.

Name Servers

leetcode.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

At least some of leetcode.jp's name servers are shared with other domains, for example tokuwari.co.jp, 1.0.2.0.6.2.1.0.3.5.1.0.6.3.0.3.2.0.1.0.0.0.5.2.1.0.4.2.ip6.arpa, imc-net.jp and two more.

These name servers tend to be used in conjunction with the name servers dns.sakura.ad.jp.

master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: 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 leetcode.jp is handled by one mail server — leetcode.jp.

leetcode.jp resolves to a single IP number: 49.212.198.109.