ryugakucost.com - robtex.com

ryugakucost.com

DNSSEC⚠️ Not signed
A183.181.91.118🇯🇵 XSERVER-AS183.181.90.0/23 XSERVER Inc.
PTRsv1117.wpx.ne.jp
NSns1.wpx.ne.jp ⭐
A157.112.145.65🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.66🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.67🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.68🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.69🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.70🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.145🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.146🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
A157.112.145.232🇯🇵 XSERVER-AS157.112.144.0/21 XSERVER Inc.
PTRns1.wpx.ne.jp
NSns2.wpx.ne.jp
A120.136.10.149🇯🇵 XSERVER-AS120.136.8.0/22 XSERVER Inc.
A120.136.10.150🇯🇵 XSERVER-AS120.136.8.0/22 XSERVER Inc.
A120.136.10.243🇯🇵 XSERVER-AS120.136.8.0/22 XSERVER Inc.
PTRns2.wpx.ne.jp
A183.90.225.214🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.225.215🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.225.216🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.225.217🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.225.218🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
NSns3.wpx.ne.jp
A157.112.182.226🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.227🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.228🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.229🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.230🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.254🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.244🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.wpx.ne.jp
MXryugakucost.com ⭐
A183.181.91.118🇯🇵 XSERVER-AS183.181.90.0/23 XSERVER Inc.
PTRsv1117.wpx.ne.jp
TXTv=spf1 +a:sv1117.wpx.ne.jp +a:ryugakucost.com +mx include:spf.sender.xserver....
SOAns1.wpx.ne.jproot@wpx.ne.jp serial=0

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=1774493232

MX for

ryugakucost.com

Subdomains

www.ryugakucost.com

Same first word

ryugakucost.com

DNS History

13 records (5 active, 8 former)

2017201820192020202120222023202420252026NSns1.wpx.ne.jpns2.wpx.ne.jpns3.wpx.ne.jpns-1041.awsdns-02.orgns-1728.awsdns-24.co.ukns-391.awsdns-48.comns-883.awsdns-46.netMXryugakucost.comaspmx.l.google.comaspmx2.googlemail.comA183.181.91.11852.68.200.16352.68.75.249
○NSns-1041.awsdns-02.org2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26
○NSns-1728.awsdns-24.co.uk2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26
○NSns-391.awsdns-48.com2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26
○NSns-883.awsdns-46.net2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26
●NSns1.wpx.ne.jp2026-03-04 → 2026-03-26 · 3 obs
○ 2016-12-18 22:00:50
● 2026-03-04 17:49:24
● 2026-03-26 02:56:26
●NSns2.wpx.ne.jp2026-03-04 → 2026-03-26 · 3 obs
○ 2016-12-18 22:00:50
● 2026-03-04 17:49:24
● 2026-03-26 02:56:26
●NSns3.wpx.ne.jp2026-03-04 → 2026-03-26 · 3 obs
○ 2016-12-18 22:00:50
● 2026-03-04 17:49:24
● 2026-03-26 02:56:26
○MXaspmx.l.google.com2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26
○MXaspmx2.googlemail.com2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26
●MXryugakucost.com2026-03-04 → 2026-03-26 · 3 obs
○ 2016-12-18 22:00:50
● 2026-03-04 17:49:24
● 2026-03-26 02:56:26
●A183.181.91.1182026-03-04 → 2026-03-26 · 3 obs
○ 2016-12-18 22:00:50
● 2026-03-04 17:49:24
● 2026-03-26 02:56:26
○A52.68.200.1632016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26
○A52.68.75.2492016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 22:00:50
○ 2026-03-04 17:49:24
○ 2026-03-26 02:56:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
ryugakucost.comns1.wpx.ne.jp, ns2.wpx.ne.jp, ns3.wpx.ne.jp-

✅ Authoritative Response

Server:157.112.145.65

NS records: ns1.wpx.ne.jp, ns2.wpx.ne.jp, ns3.wpx.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ryugakucost.com (unsigned zone)

⏱️ Timing

Total: 1305ms | Queries: -

📄 Records

TypeCountSample Data
A1183.181.91.118
NS3ns1.wpx.ne.jp, ns3.wpx.ne.jp...
MX1ryugakucost.com (pri: 0)
TXT1v=spf1 +a:sv1117.wpx.ne.jp +a:ryugakucos
SOA1ns1.wpx.ne.jp root.wpx.ne.jp

Analysis

Hierarchy

ryugakucost.com is the parent of www.ryugakucost.com.

Mail Server Role

For ryugakucost.com, the mail server is ryugakucost.com.

IP Addresses

ryugakucost.com points to a single IP number: 183.181.91.118.

other host names for instance lalala-usa.com, obakeblader.com, sv1117.wpx.ne.jp, ryugaku-canada.com and www.lalalaaustralia.com share IP numbers with ryugakucost.com.

Name Servers

ryugakucost.com is delegated to three name servers: ns1.wpx.ne.jp, ns2.wpx.ne.jp and ns3.wpx.ne.jp.

ryugakucost.com at least partially shares name servers with other domains, for instance roomm.net, eroside.info, umilog.jp, gingakei.com and nlayer.net.

Host names with nine IP numbers: ns1.wpx.ne.jp points to 157.112.145.65, 157.112.145.66, 157.112.145.67, 157.112.145.68, 157.112.145.69, 157.112.145.70, 157.112.145.145, 157.112.145.146 and 157.112.145.232.

Host names with eight IP numbers: ns2.wpx.ne.jp points to 120.136.10.149, 120.136.10.150, 120.136.10.243, 183.90.225.214, 183.90.225.215, 183.90.225.216, 183.90.225.217 and 183.90.225.218.

Host names with seven IP numbers: ns3.wpx.ne.jp points to 157.112.182.226, 157.112.182.227, 157.112.182.228, 157.112.182.229, 157.112.182.230, 157.112.182.254 and 202.226.37.244.

Mail Servers

One mail server handles ryugakucost.com.

Host name ryugakucost.com points to IP address 183.181.91.118.