mb.sydney-study.com - robtex.com

mb.sydney-study.com

DNSSEC⚠️ Not signed
A164.46.33.9🇯🇵 IDC164.46.32.0/19 Frontier Inc.
PTRrose-lanthanum109.znlc.jp

sydney-study.com

DNSSEC⚠️ Not signed
A2001:4860:4802:32::15🇺🇸 Google2001:4860::/32
A2001:4860:4802:34::15🇺🇸 Google2001:4860::/32
A2001:4860:4802:36::15🇺🇸 Google2001:4860::/32
A2001:4860:4802:38::15🇺🇸 Google2001:4860::/32
A216.239.32.21🇺🇸 Google216.239.32.0/24
A216.239.34.21🇺🇸 Google216.239.34.0/24
A216.239.36.21🇺🇸 Google216.239.36.0/24
A216.239.38.21🇺🇸 Google216.239.38.0/24
NSsydney-study.com ⭐
NSdns01.muumuu-domain.com
NSdns02.muumuu-domain.com
MXmb.sydney-study.com ⭐
TXTv=spf1 +ip4:164.46.33.9 ~all
SOAsydney-study.compostmaster@sydney-study.com serial=1658988467

MX for

sydney-study.com

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A164.46.33.9210.149.180.125
●A164.46.33.92026-04-14 → 2026-04-20 · 3 obs
○ 2016-04-24 08:30:00
● 2026-04-14 15:51:38
● 2026-04-20 11:23:50
○A210.149.180.1252015-06-10 → 2016-04-24 · 4 obs
● 2015-06-10 03:59:58
● 2016-04-24 08:30:00
○ 2026-04-14 15:51:38
○ 2026-04-20 11:23:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net...-
sydney-study.comdns01.muumuu-domain.com, dns02.muumuu-domain.com2 records

✅ Authoritative Response

Server:160.251.249.62

NS records: dns01.muumuu-domain.com, dns02.muumuu-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sydney-study.com (unsigned zone)

⏱️ Timing

Total: 514ms | Queries: -

📄 Records

TypeCountSample Data
A1164.46.33.9

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns01.muumuu-domain.com, dns02.muumuu-domain.com)

Analysis

Mail Server Role

mb.sydney-study.com serves as the mail server for sydney-study.com.

IP Addresses

mb.sydney-study.com points to IP number 164.46.33.9.

For instance, other host names mb.ryugaku-hoken.info, mb.mlt-ryugaku.com, mb.ny-ryugaku.com, rose-lanthanum109.znlc.jp and mb.deow.com.tw share IP numbers with mb.sydney-study.com.