jsug.org - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

jsug.org

DNSSEC⚠️ Not signed
A2401:2500:102:1202:133:242:139:216🇯🇵 SAKURA-A2401:2500::/32 (ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTR133.242.139.216.v6.sakura.ne.jp
A23.236.62.147🇺🇸 Google23.236.62.0/24
NS01.dnsv.jp ⭐
A2400:8500:3300::53🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.
PTR01.dnsv.jp
A157.7.32.53🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.
PTR01.dnsv.jp
NS02.dnsv.jp
A157.7.33.53🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.
PTR02.dnsv.jp
NS03.dnsv.jp
A2400:8500:3000::53🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.
PTR03.dnsv.jp
A157.7.34.53🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.
PTR03.dnsv.jp
NS04.dnsv.jp
A2400:8500:3fff::53🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.
PTR04.dnsv.jp
A157.7.35.53🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.
PTR04.dnsv.jp
MXjsug-org.mail.protection.outlook.com ⭐
A2a01:111:f403:cc1a::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tycp286cu02600.inbound.protection.outlook.com
A2a01:111:f403:cc1a::2🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tyvp286cu00302.inbound.protection.outlook.com
A2a01:111:f403:cc1f::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os9p286cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc1f::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01201.inbound.protection.outlook.com
A52.101.124.6🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tyvp286cu00206.inbound.protection.outlook.com
A52.101.157.10🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01302.inbound.protection.outlook.com
A52.101.157.11🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01203.inbound.protection.outlook.com
A52.101.157.40🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os9p286cu00100.inbound.protection.outlook.com
TXTMS=ms10988682
TXTv=spf1 ip4:133.242.139.216 include:spf.protection.outlook.com include:spf.smk...
SOA01.dnsv.jphostmaster@dnsv.jp serial=1750137267

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1786833801
WOT: SAFE (62/100)

Subdomains

mail.jsug.org

Same first word

jsug.com
jsug.org
jsug.de
jsug.co.za

Similar names

jgsu.cn
jugs.com.au
jsgu.com
jugs.fr
sjug.org
jugs.co
usgj.com
gsuj.net
jugs.ru
jgsu.com
gujs.org
jgsu.edu.cn
jugs.co.jp
gujs.xyz
gusj.nl
jugs.es
usjg.com
ugjs.com
jugs.ch
gsuj.com
ujgs.com
jugs.org
gjus.com
sujg.com
jsgu.org
jugs.eu
gusj.com
sugj.com
jugs.nl
gjus.org
jugs.info
jugs.jp
jugs.ai
jugs.com
jgus.com
jusg.com
ujsg.com
gusj.be

DNS History

9 records (7 active, 2 former)

20162017201820192020202120222023202420252026NS01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jpMXjsug-org.mail.protection.outlook.commail.jsug.orgA23.236.62.1472401:2500:102:1202:133:242:139:216133.242.139.216
●NS01.dnsv.jp2015-06-17 → 2026-08-15 · 2 obs
● 2015-06-17 22:14:24
● 2026-08-15 23:20:08
●NS02.dnsv.jp2015-06-17 → 2026-08-15 · 2 obs
● 2015-06-17 22:14:24
● 2026-08-15 23:20:08
●NS03.dnsv.jp2015-06-17 → 2026-08-15 · 2 obs
● 2015-06-17 22:14:24
● 2026-08-15 23:20:08
●NS04.dnsv.jp2015-06-17 → 2026-08-15 · 2 obs
● 2015-06-17 22:14:24
● 2026-08-15 23:20:08
●MXjsug-org.mail.protection.outlook.com2026-06-14 → 2026-08-15 · 3 obs
○ 2017-06-11 12:38:10
● 2026-06-14 23:02:58
● 2026-08-15 23:20:08
○MXmail.jsug.org2015-06-17 → 2017-06-11 · 4 obs
● 2015-06-17 22:14:24
● 2017-06-11 12:38:10
○ 2026-06-14 23:02:58
○ 2026-08-15 23:20:08
○A133.242.139.2162015-06-17 → 2017-06-11 · 4 obs
● 2015-06-17 22:14:24
● 2017-06-11 12:38:10
○ 2026-06-14 23:02:58
○ 2026-08-15 23:20:08
●A23.236.62.1472026-06-14 → 2026-08-15 · 3 obs
○ 2017-06-11 12:38:10
● 2026-06-14 23:02:58
● 2026-08-15 23:20:08
●A2401:2500:102:1202:133:242:139:2162015-06-17 → 2026-08-15 · 2 obs
● 2015-06-17 22:14:24
● 2026-08-15 23:20:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
jsug.org01.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp, 04.dnsv.jp-

✅ Authoritative Response

Server:157.7.32.53

NS records: 01.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp, 04.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jsug.org (unsigned zone)

⏱️ Timing

Total: 988ms | Queries: -

📄 Records

TypeCountSample Data
A123.236.62.147
AAAA12401:2500:102:1202:133:242:139:216
NS401.dnsv.jp, 02.dnsv.jp...
MX1jsug-org.mail.protection.outlook.com (pr
TXT2MS=ms10988682, v=spf1 ip4:133.242.139.216 include:spf.p
SOA101.dnsv.jp hostmaster.dnsv.jp

Analysis

Hierarchy

jsug.org is the parent zone for mail.jsug.org.

IP Addresses

jsug.org resolves to the IP addresses 23.236.62.147 and 2401:2500:102:1202:133:242:139:216

yuyufudousan.com, freeriga.lv, axrail.com plus two other host names have IP numbers in common with jsug.org.

Name Servers

Four name servers handle the delegation for jsug.org: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

jsug.org partially shares its NS delegation with several other domains, including yscp.jp, elnumancia.com, jp-aiwa.com and two others.

Host names pointing to two IP addresses:

01.dnsv.jp maps to two IP addresses — 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp maps to two IP addresses — 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp maps to two IP addresses — 157.7.35.53 and 2400:8500:3fff::53.

Host names resolving to a single IP address:

02.dnsv.jp points to the IP address 157.7.33.53.

Mail Servers

jsug.org uses one mail server — jsug-org.mail.protection.outlook.com.

jsug-org.mail.protection.outlook.com has 8 IP addresses: 52.101.124.6, 52.101.157.10, 52.101.157.11 plus 5 more.