jrjsk.com - robtex.com
jrjsk.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.172.136.10🇯🇵 GMO-INTERNET210.172.128.0/19 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | unused-210-172-136-010.interq.or.jp | ||||||
| NS | ns1.jtg-net.jp ⭐ | ||||||
| A | 58.147.160.57🇯🇵 JTIS58.147.160.0/21 | ||||||
| PTR | ns1.jtg-net.jp | ||||||
| PTR | ns11.jtis.co.jp | ||||||
| PTR | ns1.jtis.co.jp | ||||||
| NS | dns3.dion.ne.jp ⚠️ Not in parent delegation | ||||||
| A | 210.141.108.248🇯🇵 KDDI210.141.96.0/19 | ||||||
| PTR | dns3.dion.ne.jp | ||||||
| NS | ns2.jtg-net.jp | ||||||
| A | 58.147.160.58🇯🇵 JTIS58.147.160.0/21 | ||||||
| PTR | ns2.jtg-net.jp | ||||||
| PTR | ns12.jtis.co.jp | ||||||
| PTR | ns2.jtis.co.jp | ||||||
| MX | mgy.cybermail.jp ⭐ | ||||||
| A | 133.186.38.55🇯🇵 TOKAI-NETWORK133.186.32.0/20 TOKAI-NET | ||||||
| PTR | mgy.cybermail.jp | ||||||
| TXT | v=spf1 ip4:58.147.161.46 ip4:58.147.161.47 ip4:58.147.164.46 include:spfcm.cy... | ||||||
| TXT | MS=ms37865924 | ||||||
| SOA | ns1.jtg-net.jppostmaster@jtis.co.jp 2026-04-23 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1777320356 | ||||||
Subdomains
mail.jrjsk.com |
Same first word
jrjsk.com |
Similar names
DNS History
7 records (5 active, 2 former)
●NSdns3.dion.ne.jp2015-08-21 → 2026-04-27 · 2 obs
● 2026-04-27 20:14:10
●NSns1.jtg-net.jp2015-08-21 → 2026-04-27 · 2 obs
● 2026-04-27 20:14:10
●NSns2.jtg-net.jp2015-08-21 → 2026-04-27 · 2 obs
● 2026-04-27 20:14:10
●MXmgy.cybermail.jp2026-03-06 → 2026-04-27 · 3 obs
● 2026-03-06 07:59:14
● 2026-04-27 20:14:10
○MXmx1.jtg-net.jp2015-08-21 → 2017-07-01 · 4 obs
● 2017-07-01 18:10:52
○ 2026-03-06 07:59:14
○ 2026-04-27 20:14:10
○MXmx2.jtg-net.jp2015-08-21 → 2017-07-01 · 4 obs
● 2017-07-01 18:10:52
○ 2026-03-06 07:59:14
○ 2026-04-27 20:14:10
●A210.172.136.102015-08-21 → 2026-04-27 · 2 obs
● 2026-04-27 20:14:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net... | - |
| jrjsk.com | ns1.jtg-net.jp, ns2.jtg-net.jp | - |
✅ Authoritative Response
Server:58.147.160.58
NS records: ns1.jtg-net.jp, ns2.jtg-net.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jrjsk.com (unsigned zone)
⏱️ Timing
Total: 960ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.172.136.10 |
| NS | 3 | ns1.jtg-net.jp, dns3.dion.ne.jp... |
| MX | 1 | mgy.cybermail.jp (pri: 10) |
| TXT | 2 | MS=ms37865924, v=spf1 ip4:58.147.161.46 ip4:58.147.161. |
| SOA | 1 | ns1.jtg-net.jp postmaster.jtis.co.jp |
Analysis
Hierarchy
The parent of mail.jrjsk.com is jrjsk.com.
IP Addresses
jrjsk.com points to a single IP address: 210.172.136.10.
Name Servers
jrjsk.com is delegated to three name servers: ns1.jtg-net.jp, ns2.jtg-net.jp and dns3.dion.ne.jp.
jrjsk.com at least partially shares name servers with other domains, for example jfe-gr.com, yp-web.ne.jp, trans-media.co.jp, viewentry.jp and 152h.31.204.61.in-addr.arpa.
these name servers are commonly used with the following name servers: dns1.jregroup.ne.jp, dns2.jregroup.ne.jp, dns4.dion.ne.jp, ns11.jtis.co.jp, nsx01.jfe-gr.net, nsx01u.jfe-gr.net, nsx02.jfe-gr.net, nsx02u.jfe-gr.net, nsx21.jfe-gr.net and nsx22.jfe-gr.net.
Host names with a single IP address:
ns1.jtg-net.jp resolves to 58.147.160.57.
ns2.jtg-net.jp resolves to 58.147.160.58.
dns3.dion.ne.jp resolves to 210.141.108.248.
Mail Servers
The mgy.cybermail.jp mail server handles jrjsk.com.
jrjsk.com shares the same mail server setup as other domains, including kenkatsu.or.jp, jrtbinm.co.jp, jrtours.co.jp, chitahantogmo.or.jp and hospital.kasugai.aichi.jp.
jrjsk.com shares some mail servers with other domains, at least partially, for instance tokyo-koatsu.co.jp, tokyo-food.com, coinpark.co.jp and sanwa-conveyor.co.jp.
mgy.cybermail.jp points to a single IP number: 133.186.38.55.