`ott-engineering.net`

DNSSEC	⚠️ Not signed
A	2003:2:2:15:80:150:6:143^{🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space}
A	80.150.6.143^{🇩🇪 DTAG80.144.0.0/13 Deutsche Telekom AG, Internet service provider}
NS	`dns01-tld.t-online.de` ⭐
		A	2003:2:6:137:80:157:195:90^{🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space}
		A	80.157.195.90^{🇩🇪 DTAG80.157.0.0/16 Deutsche Telekom AG, Internet service provider}
NS	`dns02-tld.t-online.de`
		A	2003:180:a::1:53^{🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space}
			PTR	`dns02-tld.t-online.de`
		A	212.185.24.9^{🇩🇪 DTAG212.184.0.0/15 Deutsche Telekom AG, Internet service provider}
			PTR	`dns02-tld.t-online.de`
MX	`smtp-01.tld.t-online.de` ⭐
		A	194.25.134.76^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`smtp-01.tld.t-online.de`
MX	`smtp-02.tld.t-online.de` ⭐
		A	194.25.134.12^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`smtp-02.tld.t-online.de`
TXT	`v=spf1 include:_spf.hier-im-netz.de ~all`
SOA	`dns01-tld.t-online.de`dns@telekom.de 2024-05-14 #1

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774922297

Same first word

ott-engineering.de

ott-engineering.net

DNS History

10 records (6 active, 4 former)

●NSdns01-tld.t-online.de2015-06-22 → 2026-03-31 · 3 obs

○ 2007-09-23 13:46:18
● 2015-06-22 21:42:18
● 2026-03-31 02:15:32

●NSdns02-tld.t-online.de2015-06-22 → 2026-03-31 · 3 obs

○ 2007-09-23 13:46:18
● 2015-06-22 21:42:18
● 2026-03-31 02:15:32

○NSns1.webpage.t-com.de2007-09-23 → 2007-09-23 · 3 obs

● 2007-09-23 13:46:18
○ 2015-06-22 21:42:18
○ 2026-03-31 02:15:32

○NSns2.webpage.t-com.de2007-09-23 → 2007-09-23 · 3 obs

● 2007-09-23 13:46:18
○ 2015-06-22 21:42:18
○ 2026-03-31 02:15:32

○MXmail.webpage.t-com.de2007-09-23 → 2007-09-23 · 3 obs

● 2007-09-23 13:46:18
○ 2015-06-22 21:42:18
○ 2026-03-31 02:15:32

○MXmailbackup.webpage.t-com.de2007-09-23 → 2007-09-23 · 3 obs

● 2007-09-23 13:46:18
○ 2015-06-22 21:42:18
○ 2026-03-31 02:15:32

●MXsmtp-01.tld.t-online.de2015-06-22 → 2026-03-31 · 3 obs

○ 2007-09-23 13:46:18
● 2015-06-22 21:42:18
● 2026-03-31 02:15:32

●MXsmtp-02.tld.t-online.de2015-06-22 → 2026-03-31 · 3 obs

○ 2007-09-23 13:46:18
● 2015-06-22 21:42:18
● 2026-03-31 02:15:32

●A2003:2:2:15:80:150:6:1432015-06-22 → 2026-03-31 · 3 obs

○ 2007-09-23 13:46:18
● 2015-06-22 21:42:18
● 2026-03-31 02:15:32

●A80.150.6.1432015-06-22 → 2026-03-31 · 3 obs

○ 2007-09-23 13:46:18
● 2015-06-22 21:42:18
● 2026-03-31 02:15:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	l.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
ott-engineering.net	dns01-tld.t-online.de, dns02-tld.t-online.de	-

✅ Authoritative Response

Server:212.185.24.9

NS records: dns01-tld.t-online.de, dns02-tld.t-online.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ott-engineering.net (unsigned zone)

⏱️ Timing

Total: 872ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`80.150.6.143`
AAAA	1	`2003:2:2:15:80:150:6:143`
NS	2	`dns02-tld.t-online.de, dns01-tld.t-online.de`
MX	2	`smtp-01.tld.t-online.de (pri: 10), smtp-02.tld.t-online.de (pri: 10)`
TXT	1	`v=spf1 include:_spf.hier-im-netz.de ~all`
SOA	1	`dns01-tld.t-online.de dns.telekom.de`

Analysis

IP Addresses

ott-engineering.net resolves to two IP numbers: 2003:2:2:15:80:150:6:143 and 80.150.6.143.

Other host names, for instance wenz-modellbau.de, uebtp.de, smitak.de, benedom.de and malerdurm.de share IP numbers with ott-engineering.net.

Name Servers

Two name servers dns01-tld.t-online.de and dns02-tld.t-online.de handle delegation for ott-engineering.net.

ott-engineering.net uses the same name server setup as other domains, for example imwald.de, rbs-software.de, ib-burghart.de, kunden-werden-fans.net and charlys-bar.com.

Host names with two IP numbers:

dns01-tld.t-online.de points to: 2003:2:6:137:80:157:195:90 and 80.157.195.90

dns02-tld.t-online.de points to: 2003:180:a::1:53 and 212.185.24.9

Mail Servers

ott-engineering.net is handled by two mail servers: smtp-01.tld.t-online.de and smtp-02.tld.t-online.de.

ott-engineering.net has the same mail server setup as other domains, including rosteckonline.de, legalipski.de, svfgb.com, schampera.com and immokartei.de.

Host names with one IP number: The host name smtp-01.tld.t-online.de points to 194.25.134.76 and the host name smtp-02.tld.t-online.de points to 194.25.134.12.

ott-engineering.net - robtex.com