yb-system.com - robtex.com

yb-system.com

DNSSEC⚠️ Not signed
A133.167.8.82🇯🇵 SAKURA-C133.167.0.0/16 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRwww5172.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
MXyb-system.com ⭐
A133.167.8.82🇯🇵 SAKURA-C133.167.0.0/16 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRwww5172.sakura.ne.jp
TXTv=spf1 a:www5172.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2022-05-26 #15

com

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=1774540547

MX for

yb-system.com

Same first word

yb-system.com

Similar names

by-system.com

DNS History

14 records (5 active, 9 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpns-1223.awsdns-24.orgns-1815.awsdns-34.co.ukns-71.awsdns-08.comns-953.awsdns-55.netMXyb-system.commail.ta9n.co.jpA133.167.8.82124.47.193.8027.121.42.18027.121.42.18227.121.42.184
●NSmaster.dns.ne.jp2026-03-26 → 2026-03-26 · 3 obs
○ 2017-06-21 17:29:46
● 2026-03-26 16:19:20
● 2026-03-26 16:19:22
○NSns-1223.awsdns-24.org2015-07-11 → 2017-06-21 · 4 obs
● 2015-07-11 09:11:50
● 2017-06-21 17:29:46
○ 2026-03-26 16:19:20
○ 2026-03-26 16:19:22
○NSns-1815.awsdns-34.co.uk2015-07-11 → 2017-06-21 · 4 obs
● 2015-07-11 09:11:50
● 2017-06-21 17:29:46
○ 2026-03-26 16:19:20
○ 2026-03-26 16:19:22
○NSns-71.awsdns-08.com2015-07-11 → 2017-06-21 · 4 obs
● 2015-07-11 09:11:50
● 2017-06-21 17:29:46
○ 2026-03-26 16:19:20
○ 2026-03-26 16:19:22
○NSns-953.awsdns-55.net2015-07-11 → 2017-06-21 · 4 obs
● 2015-07-11 09:11:50
● 2017-06-21 17:29:46
○ 2026-03-26 16:19:20
○ 2026-03-26 16:19:22
●NSns1.dns.ne.jp2026-03-26 → 2026-03-26 · 3 obs
○ 2017-06-21 17:29:46
● 2026-03-26 16:19:20
● 2026-03-26 16:19:22
●NSns2.dns.ne.jp2026-03-26 → 2026-03-26 · 3 obs
○ 2017-06-21 17:29:46
● 2026-03-26 16:19:20
● 2026-03-26 16:19:22
○MXmail.ta9n.co.jp2016-01-26 → 2017-06-21 · 4 obs
● 2016-01-26 17:03:54
● 2017-06-21 17:29:46
○ 2026-03-26 16:19:20
○ 2026-03-26 16:19:22
●MXyb-system.com2026-03-26 → 2026-03-26 · 3 obs
○ 2017-06-21 17:29:46
● 2026-03-26 16:19:20
● 2026-03-26 16:19:22
○A124.47.193.802015-07-11 → 2015-11-12 · 4 obs
● 2015-07-11 09:11:50
● 2015-11-12 01:00:02
○ 2016-01-26 17:03:54
○ 2026-03-26 16:19:22
●A133.167.8.822026-03-26 → 2026-03-26 · 3 obs
○ 2017-06-21 17:29:46
● 2026-03-26 16:19:20
● 2026-03-26 16:19:22
○A27.121.42.1802015-07-11 → 2015-11-12 · 4 obs
● 2015-07-11 09:11:50
● 2015-11-12 01:00:02
○ 2016-01-26 17:03:54
○ 2026-03-26 16:19:22
○A27.121.42.1822016-01-26 → 2016-01-26 · 4 obs
○ 2015-11-12 01:00:02
● 2016-01-26 17:03:54
○ 2016-04-12 05:11:50
○ 2026-03-26 16:19:22
○A27.121.42.1842016-04-12 → 2017-06-21 · 5 obs
○ 2016-01-26 17:03:54
● 2016-04-12 05:11:50
● 2017-06-21 17:29:46
○ 2026-03-26 16:19:20
○ 2026-03-26 16:19:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net...-
yb-system.comns1.dns.ne.jp, ns2.dns.ne.jp-

✅ Authoritative Response

Server:61.211.236.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yb-system.com (unsigned zone)

⏱️ Timing

Total: 619ms | Queries: -

📄 Records

TypeCountSample Data
A1133.167.8.82
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1yb-system.com (pri: 10)
TXT1v=spf1 a:www5172.sakura.ne.jp mx ~all
SOA1master.dns.ne.jp tech.sakura.ad.jp

Analysis

Mail Server Role

yb-system.com serves as the mail server for yb-system.com.

IP Addresses

yb-system.com points to a single IP number: 133.167.8.82.

Other host names, for instance famousjapanese.com, jikohasan-soudan.com, lululumusica.com, dan-yuasa.jp and tsukiji.biz share IP numbers with yb-system.com.

Name Servers

The delegation for yb-system.com is handled by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

yb-system.com at least partially shares name servers with other domains, for instance aibic.net, rws-group.co.jp, arigato.jp, browns.jp.net and 233.16.160.in-addr.arpa.

These name servers are commonly used with the name servers dns.sakura.ad.jp.

Host names with one IP number:

master.dns.ne.jp points to 210.224.172.18.

ns1.dns.ne.jp points to 61.211.236.1.

ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

A single mail server handles yb-system.com.

yb-system.com points to a single IP: 133.167.8.82.