a2-works.com - robtex.com

a2-works.com

DNSSEC⚠️ Not signed
A162.43.104.17🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.
PTRsv14616.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
MXa2-works.com ⭐
A162.43.104.17🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.
PTRsv14616.xserver.jp
TXTv=spf1 +a:sv14616.xserver.jp +a:a2-works.com +mx include:spf.sender.xserver.j...
SOAns1.xserver.jproot@xserver.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=1776170677

MX for

a2-works.com

Same first word

a2-works.com

DNS History

7 records (7 active, 0 former)

NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXa2-works.comA162.43.104.17
●NSns1.xserver.jp2026-03-31 → 2026-04-14 · 2 obs
● 2026-03-31 22:57:40
● 2026-04-14 12:45:50
●NSns2.xserver.jp2026-03-31 → 2026-04-14 · 2 obs
● 2026-03-31 22:57:40
● 2026-04-14 12:45:50
●NSns3.xserver.jp2026-03-31 → 2026-04-14 · 2 obs
● 2026-03-31 22:57:40
● 2026-04-14 12:45:50
●NSns4.xserver.jp2026-03-31 → 2026-04-14 · 2 obs
● 2026-03-31 22:57:40
● 2026-04-14 12:45:50
●NSns5.xserver.jp2026-03-31 → 2026-04-14 · 2 obs
● 2026-03-31 22:57:40
● 2026-04-14 12:45:50
●MXa2-works.com2026-03-31 → 2026-04-14 · 2 obs
● 2026-03-31 22:57:40
● 2026-04-14 12:45:50
●A162.43.104.172026-03-31 → 2026-04-14 · 2 obs
● 2026-03-31 22:57:40
● 2026-04-14 12:45:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net...-
a2-works.comns1.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 a2-works.com (unsigned zone)

⏱️ Timing

Total: 3917ms | Queries: -

📄 Records

TypeCountSample Data
A1162.43.104.17
NS5ns1.xserver.jp, ns2.xserver.jp...
MX1a2-works.com (pri: 0)
TXT1v=spf1 +a:sv14616.xserver.jp +a:a2-works
SOA1ns1.xserver.jp root.xserver.jp

Analysis

Mail Server Role

a2-works.com serves as the mail server for a2-works.com.

IP Addresses

a2-works.com points to a single IP number: 162.43.104.17.

Other host names, for instance www.att-japan.net, migakiya-enma.com, sv.depot-island.co.jp, takumano.com and mail.migakiya-enma.com share IP numbers with a2-works.com.

Name Servers

a2-works.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

a2-works.com at least partially shares name servers with other domains, for instance straw-wara.net, native-phrase.com, cityhotel-michi.com, oki-geopark.jp and mangando.jp.

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

A single mail server handles a2-works.com.

a2-works.com points to a single IP: 162.43.104.17.