`mail.sebworld.de`

DNSSEC	⚠️ Not signed
A	87.139.116.49^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
		PTR	`mail.sebworld.de`
MX	`smtpin.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::1097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtpin.rzone.de`
		A	81.169.145.97^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtpin.rzone.de`

`sebworld.de`

	DNSSEC	⚠️ Not signed
	A	2a05:cc00::74:98:10^{🇩🇪 TTM2a05:cc00::/29 23Media Route}
	A	109.71.74.98^{🇩🇪 TTM109.71.72.0/22}
	NS	`docks13.rzone.de` ⭐
	NS	`shades20.rzone.de`
	MX	`sebworld-de.mail.protection.outlook.com` ⭐
	TXT	`google-site-verification=do2ZwPjCWpQkc5RlJYEJ-JrzWshCYyJ4qxjkv0im5sI`
	TXT	`klaviyo-site-verification=SQTAep`
	TXT	`MS=ms22197287`
	TXT	`google-site-verification=UL6K1d3XfLrnmHSRVv0YSrZIDESyHBQBd7drgdrIBxc`
	TXT	`MS=ms64430286`
	TXT	`v=spf1 a mx include:_spf.strato.com include:return-cname.emailsys.net include...`
	SOA	`docks13.rzone.de`hostmaster@strato-rz.de 2020-05-15 #66

WOT: SAFE (61/100)
WOT: SAFE (67/100)
📈 Tranco rank: #988,648

PTR for

49.116.139.87.in-addr.arpa

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DNS History

3 records (2 active, 1 former)

○MXsmtp.rzone.de2015-06-09 → 2016-09-07 · 4 obs

● 2015-06-09 18:48:58
● 2016-09-07 23:46:48
○ 2026-05-10 23:36:46
○ 2026-05-10 23:36:48

●MXsmtpin.rzone.de2026-05-10 → 2026-05-10 · 3 obs

○ 2016-09-07 23:46:48
● 2026-05-10 23:36:46
● 2026-05-10 23:36:48

●A87.139.116.492026-05-10 → 2026-05-10 · 2 obs

● 2026-05-10 23:36:46
● 2026-05-10 23:36:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
sebworld.de	shades20.rzone.de, docks13.rzone.de	-

✅ Authoritative Response

Server:185.132.34.147

NS records: shades20.rzone.de, docks13.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sebworld.de (unsigned zone)

⏱️ Timing

Total: 1752ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.139.116.49`
MX	1	`smtpin.rzone.de (pri: 5)`

Analysis

IP Addresses

mail.sebworld.de points to a single IP number: 87.139.116.49.

Mail Servers

mail.sebworld.de is handled by a single mail server, smtpin.rzone.de.

mail.sebworld.de uses the same mail server configuration as other domains, such as birgitschroeder.de, mail.stefan-kockrick.com, osaja.de, gamersgarden.de and emu-verband.de.

smtpin.rzone.de resolves to two IP numbers: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.

mail.sebworld.de - robtex.com

mail.sebworld.de

sebworld.de