world-u.com - robtex.com

world-u.com

DNSSEC⚠️ Not signed
A133.167.8.58🇯🇵 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
PTRwww5148.sakura.ne.jp
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
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c17::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbl-in-f26.1e100.net
A142.251.111.26🇺🇸 Google142.251.111.0/24
PTRbk-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.27🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1b🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f27.1e100.net
PTRws-in-x1b.1e100.net
A173.194.76.26🇺🇸 Google173.194.76.0/24
PTRws-in-f26.1e100.net
TXTgoogle-site-verification=AatNtJ-8_W-YSYb2LUrwXcrDAsMK9Uc4nZHHd8kY4EY
TXTv=spf1 include:_spf.google.com include:_spf.sakura.ne.jp ~all
SOA01.dnsv.jphostmaster@dnsv.jp serial=1777687395

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=1778491122

Previously MX for

www.world-u.com
world-u.com

Subdomains

www.world-u.com

Same first word

world-u.com

Similar names

u-world.cn
url-dow.blogspot.com
u-world.co.jp

DNS History

16 records (10 active, 6 former)

20162017201820192020202120222023202420252026NS01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jpmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comworld-u.comworld-u2.sakura.ne.jpA133.167.8.58219.94.156.62
●NS01.dnsv.jp2015-12-27 → 2026-05-11 · 3 obs
○ 2015-10-24 16:51:44
● 2015-12-27 18:47:14
● 2026-05-11 09:28:48
●NS02.dnsv.jp2015-12-27 → 2026-05-11 · 3 obs
○ 2015-10-24 16:51:44
● 2015-12-27 18:47:14
● 2026-05-11 09:28:48
●NS03.dnsv.jp2015-12-27 → 2026-05-11 · 3 obs
○ 2015-10-24 16:51:44
● 2015-12-27 18:47:14
● 2026-05-11 09:28:48
●NS04.dnsv.jp2015-12-27 → 2026-05-11 · 3 obs
○ 2015-10-24 16:51:44
● 2015-12-27 18:47:14
● 2026-05-11 09:28:48
○NSmaster.dns.ne.jp2015-06-13 → 2015-10-24 · 4 obs
● 2015-06-13 08:20:08
● 2015-10-24 16:51:44
○ 2015-12-27 18:47:14
○ 2026-05-11 09:28:48
○NSns1.dns.ne.jp2015-06-13 → 2015-10-24 · 4 obs
● 2015-06-13 08:20:08
● 2015-10-24 16:51:44
○ 2015-12-27 18:47:14
○ 2026-05-11 09:28:48
○NSns2.dns.ne.jp2015-06-13 → 2015-10-24 · 4 obs
● 2015-06-13 08:20:08
● 2015-10-24 16:51:44
○ 2015-12-27 18:47:14
○ 2026-05-11 09:28:48
●MXalt1.aspmx.l.google.com2020-04-03 → 2026-05-11 · 3 obs
○ 2017-04-04 07:45:56
● 2020-04-03 00:09:48
● 2026-05-11 09:28:48
●MXalt2.aspmx.l.google.com2020-04-03 → 2026-05-11 · 3 obs
○ 2017-04-04 07:45:56
● 2020-04-03 00:09:48
● 2026-05-11 09:28:48
●MXalt3.aspmx.l.google.com2020-04-03 → 2026-05-11 · 3 obs
○ 2017-04-04 07:45:56
● 2020-04-03 00:09:48
● 2026-05-11 09:28:48
●MXalt4.aspmx.l.google.com2020-04-03 → 2026-05-11 · 3 obs
○ 2017-04-04 07:45:56
● 2020-04-03 00:09:48
● 2026-05-11 09:28:48
●MXaspmx.l.google.com2020-04-03 → 2026-05-11 · 3 obs
○ 2017-04-04 07:45:56
● 2020-04-03 00:09:48
● 2026-05-11 09:28:48
○MXworld-u.com2015-06-13 → 2015-10-24 · 4 obs
● 2015-06-13 08:20:08
● 2015-10-24 16:51:44
○ 2015-12-27 18:47:14
○ 2026-05-11 09:28:48
○MXworld-u2.sakura.ne.jp2015-12-27 → 2017-04-04 · 5 obs
○ 2015-10-24 16:51:44
● 2015-12-27 18:47:14
● 2017-04-04 07:45:56
○ 2020-04-03 00:09:48
○ 2026-05-11 09:28:48
●A133.167.8.582026-04-06 → 2026-05-11 · 3 obs
○ 2020-04-03 00:09:48
● 2026-04-06 12:36:00
● 2026-05-11 09:28:48
○A219.94.156.622015-06-13 → 2020-04-03 · 4 obs
● 2015-06-13 08:20:08
● 2020-04-03 00:09:48
○ 2026-04-06 12:36:00
○ 2026-05-11 09:28:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
world-u.com01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp-

✅ Authoritative Response

Server:157.7.35.53

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for world-u.com (unsigned zone)

⏱️ Timing

Total: 1505ms | Queries: -

📄 Records

TypeCountSample Data
A1133.167.8.58
NS401.dnsv.jp, 02.dnsv.jp...
MX5alt1.aspmx.l.google.com (pri: 5), alt2.aspmx.l.google.com (pri: 5)...
TXT2google-site-verification=AatNtJ-8_W-YSYb, v=spf1 include:_spf.google.com include:_
SOA101.dnsv.jp hostmaster.dnsv.jp

Analysis

Hierarchy

world-u.com is the parent of www.world-u.com.

IP Addresses

world-u.com resolves to a single IP: 133.167.8.58.

Other host names, for instance harryserver.sakura.ne.jp, ashimiya.jp, fgumi.sakura.ne.jp, horinaga.net and fgumi.com share IP numbers with world-u.com.

Name Servers

world-u.com is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

world-u.com shares some name servers with other domains, for example r-intl.com, hslaw.jp, pdj.jp, skincare-univ.com and tokutake.co.jp.

Host names with two IP numbers:

01.dnsv.jp points to 2400:8500:3300::53 and 157.7.32.53

03.dnsv.jp points to 2400:8500:3000::53 and 157.7.34.53

04.dnsv.jp points to 2400:8500:3fff::53 and 157.7.35.53

Host names with one IP number:

02.dnsv.jp points to 157.7.33.53

Mail Servers

world-u.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

world-u.com shares some mail servers with other domains, at least partially; for instance jaytours.com, ns500671.ns500754.ns500671.ns500731.ns500754.ns500671.ns500704.ns500705.ns500705.ns500649.lustychickser.com, ns500742.ns500671.ns500731.ns500742.ns500688.ns500704.ns500671.ns500678.ns500649.lustychickser.com, ns500754.ns500754.ns500671.ns500754.ns500671.ns500291.ns500671.ns500671.ns500666.ns500153.tenderladiesbz.com and ns500765.ns500693.ns500734.ns500699.ns500734.ns500734.ns500728.ns500693.ns500683.ns500588.ns500683.ns500699.ns500632.ns500632.ns500602.dtrkdll.com.

these mail servers are often used together with the mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IPs:

Host aspmx.l.google.com has IPs 2607:f8b0:4004:c17::1a and 142.251.111.26.

Host alt1.aspmx.l.google.com has IPs 2607:f8b0:4023:2801::1a and 192.178.128.27.

Host alt2.aspmx.l.google.com has IPs 2a00:1450:400b:c02::1a and 172.253.116.27.

Host alt3.aspmx.l.google.com has IPs 2a00:1450:4009:c0f::1b and 192.178.223.26.

Host alt4.aspmx.l.google.com has IPs 2a00:1450:400c:c00::1b and 173.194.76.26.