`mail.optimus-prep.com`

DNSSEC	⚠️ Not signed
A	85.13.139.242^{🇩🇪 NMM-AS85.13.139.0/24 Neue Medien Muennich}
		PTR	`dd51204.kasserver.com`

`optimus-prep.com`

	DNSSEC	⚠️ Not signed
	A	85.13.139.242^{🇩🇪 NMM-AS85.13.139.0/24 Neue Medien Muennich}
	NS	`ns5.kasserver.com` ⭐
	NS	`ns6.kasserver.com`
	MX	`mail.optimus-prep.com` ⭐
	TXT	`v=spf1 a mx include:spf.kasserver.com ~all`
	SOA	`ns5.kasserver.com`hostmaster@kasserver.com serial=2603041121

MX for

optimus-prep.com

Same first word

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DNS History

4 records (1 active, 3 former)

○A67.202.92.82016-08-09 → 2016-08-09 · 4 obs

○ 2016-03-28 05:15:26
● 2016-08-09 22:13:18
○ 2026-03-07 07:53:42
○ 2026-03-28 10:39:22

○A69.162.151.682016-03-28 → 2016-03-28 · 4 obs

○ 2015-12-31 02:59:18
● 2016-03-28 05:15:26
○ 2016-08-09 22:13:18
○ 2026-03-28 10:39:22

○A85.13.133.1242015-05-27 → 2015-12-31 · 4 obs

● 2015-05-27 20:10:14
● 2015-12-31 02:59:18
○ 2016-03-28 05:15:26
○ 2026-03-28 10:39:22

●A85.13.139.2422026-03-07 → 2026-03-28 · 3 obs

○ 2016-08-09 22:13:18
● 2026-03-07 07:53:42
● 2026-03-28 10:39:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net...	-
optimus-prep.com	ns5.kasserver.com, ns6.kasserver.com	2 records

✅ Authoritative Response

Server:85.13.128.3

NS records: ns5.kasserver.com, ns6.kasserver.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimus-prep.com (unsigned zone)

⏱️ Timing

Total: 337ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.13.139.242`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns5.kasserver.com, ns6.kasserver.com)

Analysis

Mail Server Role

mail.optimus-prep.com serves as the mail server for optimus-prep.com.

IP Addresses

mail.optimus-prep.com points to an IP address: 85.13.139.242.

other host names include purewal.at, w00aa836.kasserver.com, w0101063.kasserver.com, melih.info and mail.ahmet.biz; they share IP numbers with mail.optimus-prep.com.

mail.optimus-prep.com - robtex.com