concurrent.jp - dns.ninja

concurrent.jp

DNSSEC⚠️ Not signed
A157.7.44.226🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRusers263.vip.heteml.jp
NSdns0.heteml.jp ⭐
A157.7.44.53🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRdns510.heteml.jp
NSdns1.heteml.jp
A157.7.188.149🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRdns711.phy.heteml.jp
MXmx-proxy501.heteml.jp ⭐
A157.7.189.17🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
MXmx-proxy502.heteml.jp(20)
A157.7.189.18🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
TXTv=spf1 include:_spf.heteml.jp ~all
SOAdns0.heteml.jphostmaster@concurrent.jp serial=1782236897

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=1782244802

Subdomains

www.concurrent.jp

Same first word

concurrent.net
concurrent.biz
concurrent.org
concurrent.co
concurrent.dk
concurrent.eu
concurrent.jp
concurrent.ca
concurrent.tech
concurrent.com
concurrent.be
concurrent.co.za
concurrent.ch
concurrent.fr
concurrent.co.uk
concurrent.work

Similar names

truconnecr.com
currentcon.com

DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NSdns0.heteml.jpdns1.heteml.jpMXmx-proxy501.heteml.jpmx-proxy502.heteml.jpmail32.heteml.jpA157.7.44.226157.7.188.209210.224.177.212
●NSdns0.heteml.jp2015-06-30 → 2026-06-23 · 2 obs
● 2015-06-30 07:41:30
● 2026-06-23 20:14:56
●NSdns1.heteml.jp2015-06-30 → 2026-06-23 · 2 obs
● 2015-06-30 07:41:30
● 2026-06-23 20:14:56
○MXmail32.heteml.jp2015-06-30 → 2019-03-10 · 4 obs
● 2015-06-30 07:41:30
● 2019-03-10 08:57:06
○ 2026-02-28 10:31:54
○ 2026-06-23 20:14:56
●MXmx-proxy501.heteml.jp2026-02-28 → 2026-06-23 · 3 obs
○ 2019-03-10 08:57:06
● 2026-02-28 10:31:54
● 2026-06-23 20:14:56
●MXmx-proxy502.heteml.jp2026-02-28 → 2026-06-23 · 3 obs
○ 2019-03-10 08:57:06
● 2026-02-28 10:31:54
● 2026-06-23 20:14:56
○A157.7.188.2092015-11-12 → 2019-03-10 · 5 obs
○ 2015-06-30 07:41:30
● 2015-11-12 07:43:54
● 2019-03-10 08:57:06
○ 2026-02-28 10:31:54
○ 2026-06-23 20:14:56
●A157.7.44.2262026-02-28 → 2026-06-23 · 3 obs
○ 2019-03-10 08:57:06
● 2026-02-28 10:31:54
● 2026-06-23 20:14:56
○A210.224.177.2122015-06-30 → 2015-06-30 · 3 obs
● 2015-06-30 07:41:30
○ 2015-11-12 07:43:54
○ 2026-06-23 20:14:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
concurrent.jpdns0.heteml.jp, dns1.heteml.jp2 records

✅ Authoritative Response

Server:157.7.188.149

NS records: dns0.heteml.jp, dns1.heteml.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concurrent.jp (unsigned zone)

⏱️ Timing

Total: 924ms | Queries: -

📄 Records

TypeCountSample Data
A1157.7.44.226
NS2dns0.heteml.jp, dns1.heteml.jp
MX2mx-proxy501.heteml.jp (pri: 10), mx-proxy502.heteml.jp (pri: 20)
TXT1v=spf1 include:_spf.heteml.jp ~all
SOA1dns0.heteml.jp hostmaster.concurrent.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns0.heteml.jp, dns1.heteml.jp)

Analysis

Hierarchy

concurrent.jp serves as the parent of www.concurrent.jp.

IP Addresses

concurrent.jp has exactly one IP address — 157.7.44.226.

takeachance.jp, onyomi.jp, seamless-inc.com plus two other host names have IP numbers in common with concurrent.jp.

Name Servers

DNS delegation for concurrent.jp points to two name servers: dns0.heteml.jp and dns1.heteml.jp.

The name server configuration of concurrent.jp is shared with other domains, for instance seino-dc.net, okanoue-coffee.com, maruyamaclinic.or.jp and two others.

dns0.heteml.jp directs to 157.7.44.53 and dns1.heteml.jp directs to 157.7.188.149; each host name points to exactly one IP number.

Mail Servers

concurrent.jp uses two mail servers, mx-proxy501.heteml.jp and mx-proxy502.heteml.jp.

The mail server setup of concurrent.jp matches that of other domains such as hcdesign.jp, cielo-media.com, my-sonic.com and two others.

The mail servers of concurrent.jp are at least partially shared with other domains, including jepaa.info.

mx-proxy501.heteml.jp directs to 157.7.189.17 and mx-proxy502.heteml.jp directs to 157.7.189.18; each host name points to exactly one IP number.