`spamblock3.ottenhoff.net`

CNAME	`h1.ottenhoff.net`
DNSSEC	⚠️ Not signed
A	52.88.137.57^{🇺🇸 Amazon52.88.0.0/15 EC2 PDX Prefix}
		PTR	`ec2-52-88-137-57.us-west-2.compute.amazonaws.com`

`ottenhoff.net`

	DNSSEC	⚠️ Not signed
	A	52.88.137.57^{🇺🇸 Amazon52.88.0.0/15 EC2 PDX Prefix}
	NS	`ns1.ottenhoff.net` ⭐
	NS	`ns2.ottenhoff.net`
	MX	`mx1.mailchannels.net` ⭐
	MX	`mx2.mailchannels.net` ⭐
	TXT	`FQxJPrzSKmyjzDy9zvsmKagS9s94DTH1`
	TXT	`google-site-verification=gQIyREwsal0VDK_17ZLv-VLAO_u8IOxgei3KJMcxRTo`
	TXT	`google-site-verification=AIgHIcIyFesgycPnME8nEZV1scRzRePFOKHyXVGATN8`
	TXT	`v=spf1 include:_spf.ottenhoff.net include:_spf.getharvest.com include:cmail1....`
	SOA	`ns1.ottenhoff.net`admin@oc03.com 2026-03-31 #2

📈 Tranco rank: #162,936

Previously MX for

DNS History

9 records (1 active, 8 former)

○NSdns1.spamrl.com2015-06-27 → 2026-02-15 · 4 obs

● 2015-06-27 22:34:28
● 2026-02-15 06:34:32
○ 2026-02-24 13:11:18
○ 2026-04-24 13:48:42

○NSdns2.spamrl.com2016-07-09 → 2026-02-15 · 5 obs

○ 2015-06-27 22:34:28
● 2016-07-09 21:45:50
● 2026-02-15 06:34:32
○ 2026-02-24 13:11:18
○ 2026-04-24 13:48:42

○NSdns3.spamrl.com2016-07-09 → 2026-02-15 · 5 obs

○ 2015-06-27 22:34:28
● 2016-07-09 21:45:50
● 2026-02-15 06:34:32
○ 2026-02-24 13:11:18
○ 2026-04-24 13:48:42

○NSdns4.spamrl.com2016-07-09 → 2026-02-15 · 5 obs

○ 2015-06-27 22:34:28
● 2016-07-09 21:45:50
● 2026-02-15 06:34:32
○ 2026-02-24 13:11:18
○ 2026-04-24 13:48:42

○A2a00:1630:2:1c05::22016-07-09 → 2026-02-15 · 5 obs

○ 2016-06-23 13:36:52
● 2016-07-09 21:45:50
● 2026-02-15 06:34:32
○ 2026-02-24 13:11:18
○ 2026-04-24 13:48:42

○A31.204.150.412016-07-09 → 2026-02-15 · 5 obs

○ 2016-06-23 13:36:52
● 2016-07-09 21:45:50
● 2026-02-15 06:34:32
○ 2026-02-24 13:11:18
○ 2026-04-24 13:48:42

○A46.16.74.242015-06-27 → 2016-03-12 · 4 obs

● 2015-06-27 22:34:28
● 2016-03-12 12:52:36
○ 2016-05-23 15:20:40
○ 2026-04-24 13:48:42

○A46.16.75.882016-05-23 → 2016-06-23 · 5 obs

○ 2016-03-12 12:52:36
● 2016-05-23 15:20:40
● 2016-06-23 13:36:52
○ 2016-07-09 21:45:50
○ 2026-04-24 13:48:42

●CNAMEh1.ottenhoff.net2026-02-15 → 2026-04-24 · 2 obs

● 2026-02-15 06:34:32
● 2026-04-24 13:48:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
ottenhoff.net	ns1.ottenhoff.net, ns2.ottenhoff.net	2 records

✅ Authoritative Response

Server:52.43.52.224

NS records: ns1.ottenhoff.net, ns2.ottenhoff.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ottenhoff.net (unsigned zone)

⏱️ Timing

Total: 294ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`h1.ottenhoff.net`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.ottenhoff.net, ns2.ottenhoff.net)

Analysis

IP Addresses

spamblock3.ottenhoff.net resolves to one IP number: 52.88.137.57.

other host names including email.sshbclaw.com, aasun.com, ottenhoffconsulting.net, willesq.com and ottenhoffconsulting.com share IP numbers with spamblock3.ottenhoff.net.

spamblock3.ottenhoff.net - robtex.com