justudy.net - robtex.com

justudy.net

DNSSEC⚠️ Not signed
A199.36.158.100🇺🇸 Fastly199.36.158.0/24 Google
NSns-1176.awsdns-19.org ⭐
A2600:9000:5304:9800::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1176.awsdns-19.org
A205.251.196.152🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1176.awsdns-19.org
NSns-1559.awsdns-02.co.uk
A2600:9000:5306:1700::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1559.awsdns-02.co.uk
A205.251.198.23🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1559.awsdns-02.co.uk
NSns-414.awsdns-51.com
A2600:9000:5301:9e00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-414.awsdns-51.com
A205.251.193.158🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-414.awsdns-51.com
NSns-524.awsdns-01.net
A2600:9000:5302:c00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-524.awsdns-01.net
A205.251.194.12🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-524.awsdns-01.net
MXmx01.lolipop.jp ⭐
A157.7.107.233🇯🇵 GMO-INTERNET157.7.64.0/18 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
TXThosting-site=lms-production-c13aa
TXTv=spf1 a:uns01.lolipop.jp a:uns02.lolipop.jp include:justudy.net -all
SOAns-1176.awsdns-19.orgawsdns-hostmaster@amazon.com serial=1

net

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778528392

Same first word

justudy.net
justudy.co.il
justudy.cn

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSns-1176.awsdns-19.orgns-1559.awsdns-02.co.ukns-414.awsdns-51.comns-524.awsdns-01.netjm1.dns.comjm2.dns.comns01.domaincontrol.comns02.domaincontrol.comMXmx01.lolipop.jpmailstore1.secureserver.netsmtp.secureserver.netA199.36.158.100114.80.210.214154.215.135.37
○NSjm1.dns.com2020-01-07 → 2020-01-07 · 3 obs
○ 2017-03-25 02:57:02
● 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
○NSjm2.dns.com2020-01-07 → 2020-01-07 · 3 obs
○ 2017-03-25 02:57:02
● 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
●NSns-1176.awsdns-19.org2026-05-11 → 2026-05-11 · 2 obs
○ 2020-01-07 22:55:28
● 2026-05-11 19:45:12
●NSns-1559.awsdns-02.co.uk2026-05-11 → 2026-05-11 · 2 obs
○ 2020-01-07 22:55:28
● 2026-05-11 19:45:12
●NSns-414.awsdns-51.com2026-05-11 → 2026-05-11 · 2 obs
○ 2020-01-07 22:55:28
● 2026-05-11 19:45:12
●NSns-524.awsdns-01.net2026-05-11 → 2026-05-11 · 2 obs
○ 2020-01-07 22:55:28
● 2026-05-11 19:45:12
○NSns01.domaincontrol.com2015-08-12 → 2017-03-25 · 4 obs
● 2015-08-12 11:48:24
● 2017-03-25 02:57:02
○ 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
○NSns02.domaincontrol.com2015-08-12 → 2017-03-25 · 4 obs
● 2015-08-12 11:48:24
● 2017-03-25 02:57:02
○ 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
○MXmailstore1.secureserver.net2015-08-12 → 2017-03-25 · 4 obs
● 2015-08-12 11:48:24
● 2017-03-25 02:57:02
○ 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
●MXmx01.lolipop.jp2026-05-11 → 2026-05-11 · 2 obs
○ 2020-01-07 22:55:28
● 2026-05-11 19:45:12
○MXsmtp.secureserver.net2015-08-12 → 2017-03-25 · 4 obs
● 2015-08-12 11:48:24
● 2017-03-25 02:57:02
○ 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
○A114.80.210.2142015-08-12 → 2017-03-25 · 4 obs
● 2015-08-12 11:48:24
● 2017-03-25 02:57:02
○ 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
○A154.215.135.372020-01-07 → 2020-01-07 · 3 obs
○ 2017-03-25 02:57:02
● 2020-01-07 22:55:28
○ 2026-05-11 19:45:12
●A199.36.158.1002026-05-11 → 2026-05-11 · 2 obs
○ 2020-01-07 22:55:28
● 2026-05-11 19:45:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netg.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net...-
justudy.netns-524.awsdns-01.net, ns-414.awsdns-51.com, ns-1559.awsdns-02.co.uk, ns-1176.awsdns-19.org2 records

✅ Authoritative Response

Server:205.251.194.12

NS records: ns-524.awsdns-01.net, ns-414.awsdns-51.com, ns-1559.awsdns-02.co.uk, ns-1176.awsdns-19.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for justudy.net (unsigned zone)

⏱️ Timing

Total: 484ms | Queries: -

📄 Records

TypeCountSample Data
A1199.36.158.100
NS4ns-1176.awsdns-19.org, ns-1559.awsdns-02.co.uk...
MX1mx01.lolipop.jp (pri: 10)
TXT2hosting-site=lms-production-c13aa, v=spf1 a:uns01.lolipop.jp a:uns02.lolipo
SOA1ns-1176.awsdns-19.org awsdns-hostmaster.

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-524.awsdns-01.net, ns-524.awsdns-01.net)

Analysis

IP Addresses

justudy.net resolves to a single IP address: 199.36.158.100.

Other host names including tsubasafc.com, feedbackdeveloperservice.firebaseapp.com, cancel-541946541-binance-com.web.app, contact-for-case-reply-ovq3.web.app and revaapp.co share IP numbers with justudy.net.

Name Servers

justudy.net is delegated to four name servers: ns-414.awsdns-51.com, ns-524.awsdns-01.net, ns-1176.awsdns-19.org and ns-1559.awsdns-02.co.uk.

justudy.net at least partially shares name servers with other domains, including beststage.co.jp, d3adccsj5l5fic.cloudfront.net, huddler.app, storyllp.ai and flyakeed.com.

Hosts with two IP numbers:

Host ns-414.awsdns-51.com points to 2600:9000:5301:9e00::1 and 205.251.193.158

Host ns-524.awsdns-01.net points to 2600:9000:5302:c00::1 and 205.251.194.12

Host ns-1176.awsdns-19.org points to 2600:9000:5304:9800::1 and 205.251.196.152

Host ns-1559.awsdns-02.co.uk points to 2600:9000:5306:1700::1 and 205.251.198.23

Mail Servers

justudy.net is handled by a single mail server, mx01.lolipop.jp.

justudy.net shares its mail server setup with other domains, including kk-golf.com, le-blanco.com, cbs-dream.com, ts-koda.com and aiwa-eco.com.

mx01.lolipop.jp points to a single IP: 157.7.107.233.