iryou21.net - robtex.com

iryou21.net

DNSSEC⚠️ Not signed
A183.90.231.4🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv203.xbiz.ne.jp
NSns1.xbiz.ne.jp ⭐
A157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
PTRns1.xbiz.ne.jp
NSns2.xbiz.ne.jp
A35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xbiz.ne.jp
NSns3.xbiz.ne.jp
A157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc.
PTRns3.xbiz.ne.jp
MXiryou21.net ⭐
A183.90.231.4🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
PTRsv203.xbiz.ne.jp
TXTv=spf1 +a:sv203.xbiz.ne.jp +a:iryou21.net +mx include:spf.sender.xserver.jp ~all
SOAns1.xbiz.ne.jproot@xbiz.ne.jp serial=0

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=1778679761
WOT: UNKNOWN (61/100)

MX for

iryou21.net

Subdomains

mail.iryou21.net

Same first word

iryou21.net
iryou21.jp

Similar names

riyou21.com

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSns1.xbiz.ne.jpns2.xbiz.ne.jpns3.xbiz.ne.jpns.namedserver.netns2.namedserver.netMXiryou21.netmail.iryou21.netA183.90.231.4153.122.17.70
○NSns.namedserver.net2015-08-15 → 2020-03-31 · 4 obs
● 2015-08-15 00:06:48
● 2020-03-31 20:11:36
○ 2026-03-29 10:41:28
○ 2026-05-13 14:12:52
●NSns1.xbiz.ne.jp2026-03-29 → 2026-05-13 · 3 obs
○ 2020-03-31 20:11:36
● 2026-03-29 10:41:28
● 2026-05-13 14:12:52
○NSns2.namedserver.net2015-08-15 → 2020-03-31 · 4 obs
● 2015-08-15 00:06:48
● 2020-03-31 20:11:36
○ 2026-03-29 10:41:28
○ 2026-05-13 14:12:52
●NSns2.xbiz.ne.jp2026-03-29 → 2026-05-13 · 3 obs
○ 2020-03-31 20:11:36
● 2026-03-29 10:41:28
● 2026-05-13 14:12:52
●NSns3.xbiz.ne.jp2026-03-29 → 2026-05-13 · 3 obs
○ 2020-03-31 20:11:36
● 2026-03-29 10:41:28
● 2026-05-13 14:12:52
●MXiryou21.net2015-08-15 → 2026-05-13 · 2 obs
● 2015-08-15 00:06:48
● 2026-05-13 14:12:52
○MXmail.iryou21.net2015-08-15 → 2020-03-31 · 4 obs
● 2015-08-15 00:06:48
● 2020-03-31 20:11:36
○ 2026-03-29 10:41:28
○ 2026-05-13 14:12:52
○A153.122.17.702015-08-15 → 2020-03-31 · 4 obs
● 2015-08-15 00:06:48
● 2020-03-31 20:11:36
○ 2026-03-29 10:41:28
○ 2026-05-13 14:12:52
●A183.90.231.42026-03-29 → 2026-05-13 · 3 obs
○ 2020-03-31 20:11:36
● 2026-03-29 10:41:28
● 2026-05-13 14:12:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netk.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...-
iryou21.netns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp-

✅ Authoritative Response

Server:157.112.182.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for iryou21.net (unsigned zone)

⏱️ Timing

Total: 4899ms | Queries: -

📄 Records

TypeCountSample Data
A1183.90.231.4
NS3ns1.xbiz.ne.jp, ns2.xbiz.ne.jp...
MX1iryou21.net (pri: 0)
TXT1v=spf1 +a:sv203.xbiz.ne.jp +a:iryou21.ne
SOA1ns1.xbiz.ne.jp root.xbiz.ne.jp

Analysis

Hierarchy

The parent of mail.iryou21.net is iryou21.net.

Mail Server Role

iryou21.net serves as the mail server for iryou21.net.

IP Addresses

iryou21.net points to an IP address: 183.90.231.4.

other host names include iryou21.jp, posillipo-cucina.jp, mail.iryou21.net, minsah-shop.com and 3backs.com; they share IP numbers with iryou21.net.

Name Servers

iryou21.net is delegated to three name servers ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.

iryou21.net at least partially shares name servers with other domains, for instance kyokyogo.or.jp, onthe.osaka, takumi-waterproof.com, matsunaga-tire.com and beautyone.co.jp.

Host names with one IP:

ns1.xbiz.ne.jp points to 157.112.182.247; ns2.xbiz.ne.jp points to 35.76.79.244; ns3.xbiz.ne.jp points to 157.112.191.237.

Mail Servers

iryou21.net is handled by a single mail server.

The host name iryou21.net points to IP 183.90.231.4.