mail.oa-sys.net - robtex.com

mail.oa-sys.net

DNSSEC⚠️ Not signed
A162.43.120.122🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc.
PTRsv14121.xserver.jp

oa-sys.net

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:9f09🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:4267🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.66.103Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.159.9🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSchloe.ns.cloudflare.com ⭐
NScoleman.ns.cloudflare.com
MXmail.oa-sys.net ⭐
TXTgoogle-site-verification=U7W-aELobdBmq-Wh4MfjW2sULR4abnyqazX4BVUbGIs
TXTv=spf1 +a:sv14121.xserver.jp +a:oa-sys.net +mx include:spf.sender.xserver.jp ...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.66.103, 172.67.159.9
IPv62606:4700:3033::ac43:9f09, 2606:4700:3035::6815:4267
SOAchloe.ns.cloudflare.comdns@cloudflare.com serial=2399022473

MX for

oa-sys.net

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DNS History

1 record (1 active, 0 former)

A162.43.120.122
●A162.43.120.1222026-03-24 → 2026-03-26 · 2 obs
● 2026-03-24 03:29:22
● 2026-03-26 18:40:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neta.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
oa-sys.netchloe.ns.cloudflare.com, coleman.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.85

NS records: chloe.ns.cloudflare.com, coleman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oa-sys.net (unsigned zone)

⏱️ Timing

Total: 490ms | Queries: -

📄 Records

TypeCountSample Data
A1162.43.120.122

Analysis

Mail Server Role

mail.oa-sys.net serves as the mail server for oa-sys.net.

IP Addresses

mail.oa-sys.net points to a single IP: 162.43.120.122.

Other host names, for instance wesden.net, tri-aichi.com, wanderkokuho.com, azojim.com and ns1.wwwims.net share IP numbers with mail.oa-sys.net.