`mail.rkwengineering.com`

DNSSEC	⚠️ Not signed
A	72.43.254.20^{🇺🇸 RoadRunner72.43.192.0/18 RR-Route}
		PTR	`mail.rkwengineering.com`

`rkwengineering.com`

	DNSSEC	⚠️ Not signed
	A	160.153.0.61^{🇺🇸 CLOUDFLARESPECTRUM160.153.0.0/24 MWP}
	NS	`ns57.domaincontrol.com` ⭐
	NS	`ns58.domaincontrol.com`
	MX	`rkwengineering-com.mail.protection.outlook.com` ⭐
	TXT	`v=spf1 include:spf.protection.outlook.com -all`
	TXT	`MS=ms67303031`
	SOA	`ns57.domaincontrol.com`dns@jomax.net 2023-07-18 #7

PTR for

20.254.43.72.in-addr.arpa

Previously MX for

rkwengineering.com

Same first word

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DNS History

1 record (1 active, 0 former)

●A72.43.254.202015-06-14 → 2026-04-02 · 2 obs

● 2015-06-14 19:57:04
● 2026-04-02 15:38:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rkwengineering.com	ns57.domaincontrol.com, ns58.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.76.29

NS records: ns57.domaincontrol.com, ns58.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rkwengineering.com (unsigned zone)

⏱️ Timing

Total: 87ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`72.43.254.20`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns57.domaincontrol.com, ns57.domaincontrol.com, ns58.domaincontrol.com...)

Analysis

IP Addresses

mail.rkwengineering.com points to a single IP number: 72.43.254.20.

mail.rkwengineering.com - robtex.com