a03.net - robtex.com

a03.net

DNSSEC⚠️ Not signed
A85.131.221.16🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.
PTRsv17055.xserver.jp
NSns1.xserver.jp ⭐
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MXa03.net ⭐
A85.131.221.16🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.
PTRsv17055.xserver.jp
TXTv=spf1 +a:sv17055.xserver.jp +a:a03.net +mx include:spf.sender.xserver.jp ~all
SOAns1.xserver.jproot@xserver.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=1778425341

MX for

a03.net

Same first word

a03.com
a03.cn
a03.com.au
a03.uk
a03.azurefd.net
a03.eu
a03.ru
a03.net

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DNS History

13 records (7 active, 6 former)

2008201020122014201620182020202220242026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpns1.cp-28.webhostbox.netns1.rolet.comns2.cp-28.webhostbox.netns2.rolet.comMXa03.netA85.131.221.16162.251.85.73199.79.62.21
○NSns1.cp-28.webhostbox.net2015-06-21 → 2017-06-04 · 5 obs
○ 2007-09-19 15:35:10
● 2015-06-21 23:49:16
● 2017-06-04 08:14:32
○ 2026-05-07 00:01:34
○ 2026-05-10 15:29:00
○NSns1.rolet.com2007-09-19 → 2007-09-19 · 3 obs
● 2007-09-19 15:35:10
○ 2015-06-21 23:49:16
○ 2026-05-10 15:29:00
●NSns1.xserver.jp2026-05-07 → 2026-05-10 · 3 obs
○ 2017-06-04 08:14:32
● 2026-05-07 00:01:34
● 2026-05-10 15:29:00
○NSns2.cp-28.webhostbox.net2015-06-21 → 2017-06-04 · 5 obs
○ 2007-09-19 15:35:10
● 2015-06-21 23:49:16
● 2017-06-04 08:14:32
○ 2026-05-07 00:01:34
○ 2026-05-10 15:29:00
○NSns2.rolet.com2007-09-19 → 2007-09-19 · 3 obs
● 2007-09-19 15:35:10
○ 2015-06-21 23:49:16
○ 2026-05-10 15:29:00
●NSns2.xserver.jp2026-05-07 → 2026-05-10 · 3 obs
○ 2017-06-04 08:14:32
● 2026-05-07 00:01:34
● 2026-05-10 15:29:00
●NSns3.xserver.jp2026-05-07 → 2026-05-10 · 3 obs
○ 2017-06-04 08:14:32
● 2026-05-07 00:01:34
● 2026-05-10 15:29:00
●NSns4.xserver.jp2026-05-07 → 2026-05-10 · 3 obs
○ 2017-06-04 08:14:32
● 2026-05-07 00:01:34
● 2026-05-10 15:29:00
●NSns5.xserver.jp2026-05-07 → 2026-05-10 · 3 obs
○ 2017-06-04 08:14:32
● 2026-05-07 00:01:34
● 2026-05-10 15:29:00
●MXa03.net2015-06-21 → 2026-05-10 · 3 obs
○ 2007-09-19 15:35:10
● 2015-06-21 23:49:16
● 2026-05-10 15:29:00
○A162.251.85.732017-06-04 → 2017-06-04 · 4 obs
○ 2016-04-10 07:27:04
● 2017-06-04 08:14:32
○ 2026-05-07 00:01:34
○ 2026-05-10 15:29:00
○A199.79.62.212015-06-21 → 2016-04-10 · 5 obs
○ 2007-09-19 15:35:10
● 2015-06-21 23:49:16
● 2016-04-10 07:27:04
○ 2017-06-04 08:14:32
○ 2026-05-10 15:29:00
●A85.131.221.162026-05-07 → 2026-05-10 · 3 obs
○ 2017-06-04 08:14:32
● 2026-05-07 00:01:34
● 2026-05-10 15:29:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nete.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net...-
a03.netns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...-

✅ Authoritative Response

Server:35.72.43.26

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a03.net (unsigned zone)

⏱️ Timing

Total: 1097ms | Queries: -

📄 Records

TypeCountSample Data
A185.131.221.16
NS5ns5.xserver.jp, ns4.xserver.jp...
MX1a03.net (pri: 0)
TXT1v=spf1 +a:sv17055.xserver.jp +a:a03.net
SOA1ns1.xserver.jp root.xserver.jp

Analysis

Mail Server Role

a03.net serves as the mail server for a03.net.

IP Addresses

a03.net points to IP number 85.131.221.16.

Other host names, for instance, tanii-net.com share IP numbers with a03.net.

Name Servers

a03.net is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

a03.net shares name servers with other domains at least partially, for example fujifilmmuseum.com, ichitoku.com, ast-aster.com, wellforce.jp and gelatora.com.

Host names with three IP numbers:

ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names with one IP number:

ns2.xserver.jp points to: 35.72.43.26.

ns3.xserver.jp points to: 202.226.36.247.

Mail Servers

a03.net is handled by a single mail server, a03.net.

a03.net points to a single IP: 85.131.221.16.