mail.securityonlinecourse.com - robtex.com

mail.securityonlinecourse.com

DNSSEC⚠️ Not signed
A107.180.40.48🇺🇸 AS400754107.180.0.0/18 IAD2 Allocation
PTR48.40.180.107.host.secureserver.net

securityonlinecourse.com

DNSSEC⚠️ Not signed
A107.180.40.48🇺🇸 AS400754107.180.0.0/18 IAD2 Allocation
NSns51.domaincontrol.com ⭐
NSns52.domaincontrol.com
MXmail.securityonlinecourse.com ⭐
TXTv=spf1 a mx ptr include:secureserver.net ~all
SOAns51.domaincontrol.comdns@jomax.net 2025-12-07 #0

MX for

securityonlinecourse.com

Same first word

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DNS History

1 record (1 active, 0 former)

A107.180.40.48
●A107.180.40.482026-07-09 → 2026-08-06 · 2 obs
● 2026-07-09 04:17:48
● 2026-08-06 03:07:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net...-
securityonlinecourse.comns51.domaincontrol.com, ns52.domaincontrol.com4 records

✅ Authoritative Response

Server:173.201.73.26

NS records: ns51.domaincontrol.com, ns52.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for securityonlinecourse.com (unsigned zone)

⏱️ Timing

Total: 503ms | Queries: -

📄 Records

TypeCountSample Data
A1107.180.40.48

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns51.domaincontrol.com, ns51.domaincontrol.com, ns52.domaincontrol.com...)

Analysis

Mail Server Role

securityonlinecourse.com uses mail.securityonlinecourse.com as a mail server.

IP Addresses

mail.securityonlinecourse.com resolves to one IP address: 107.180.40.48.

deaconminder.com, baltimoreclubtracks.com, swordpen.com and two other host names share IP numbers with mail.securityonlinecourse.com.