1stengineering.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`1stengineering.com`

DNSSEC	⚠️ Not signed
A	2a01:238:20a:202:1152::^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
		PTR	`w98.rzone.de`
A	81.169.145.152^{🇩🇪 STRATO81.169.144.0/22 AG}
NS	`docks13.rzone.de` ⭐
		A	2001:8d8:fe:53:5747:2a74:d:13^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`docks13.rzone.de`
		A	217.160.80.140^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`docks13.rzone.de`
NS	`shades11.rzone.de`
		A	2607:f1c0:fe:53:185:132:34:138^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`shades11.rzone.de`
		A	185.132.34.138^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`shades11.rzone.de`
MX	`smtp.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::2097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtp.rzone.de`
		A	81.169.145.98^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtp.rzone.de`
SOA	`docks13.rzone.de`hostmaster@strato-rz.de 2020-06-03 #15

`com`

	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=1786850484

Same first word

1stengineering.com

DNS History

7 records (5 active, 2 former)

●NSdocks13.rzone.de2015-05-18 → 2026-08-16 · 2 obs

● 2015-05-18 15:35:32
● 2026-08-16 03:41:40

●NSshades11.rzone.de2015-05-18 → 2026-08-16 · 2 obs

● 2015-05-18 15:35:32
● 2026-08-16 03:41:40

●MXsmtp.rzone.de2015-05-18 → 2026-08-16 · 2 obs

● 2015-05-18 15:35:32
● 2026-08-16 03:41:40

●A2a01:238:20a:202:1152::2026-06-14 → 2026-08-16 · 3 obs

○ 2017-01-30 17:31:20
● 2026-06-14 21:26:44
● 2026-08-16 03:41:40

○A2a01:238:20a:202:1161::2015-05-18 → 2017-01-30 · 4 obs

● 2015-05-18 15:35:32
● 2017-01-30 17:31:20
○ 2026-06-14 21:26:44
○ 2026-08-16 03:41:40

●A81.169.145.1522026-06-14 → 2026-08-16 · 3 obs

○ 2017-01-30 17:31:20
● 2026-06-14 21:26:44
● 2026-08-16 03:41:40

○A81.169.145.1612015-05-18 → 2017-01-30 · 4 obs

● 2015-05-18 15:35:32
● 2017-01-30 17:31:20
○ 2026-06-14 21:26:44
○ 2026-08-16 03:41:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
1stengineering.com	shades11.rzone.de, docks13.rzone.de	-

✅ Authoritative Response

Server:185.132.34.138

NS records: shades11.rzone.de, docks13.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 1stengineering.com (unsigned zone)

⏱️ Timing

Total: 375ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.145.152`
AAAA	1	`2a01:238:20a:202:1152::`
NS	2	`docks13.rzone.de, shades11.rzone.de`
MX	1	`smtp.rzone.de (pri: 5)`
SOA	1	`docks13.rzone.de hostmaster.strato-rz.de`

Analysis

IP Addresses

1stengineering.com points to the IP addresses 81.169.145.152 and 2a01:238:20a:202:1152::

dertasse.de, tennis-michelbach.de, projetplus.net plus two other host names have IP numbers in common with 1stengineering.com.

Name Servers

1stengineering.com uses two name servers for its delegation: docks13.rzone.de and shades11.rzone.de.

The name server configuration of 1stengineering.com is shared with other domains, for instance first-legacy.com, terrassendach1a.de, hoelk.com and two others.

The name servers of 1stengineering.com overlap at least partially with those of other domains — among them abc-touristik.de, human-design.at, proscan.info and two more.

These name servers commonly appear in delegations together with shades04.rzone.de, shades05.rzone.de, docks14.rzone.de and 7 other.

The two host names docks13.rzone.de and shades11.rzone.de each have a pair of IP addresses: docks13.rzone.de has 217.160.80.140 and 2001:8d8:fe:53:5747:2a74:d:13, and shades11.rzone.de has 185.132.34.138 and 2607:f1c0:fe:53:185:132:34:138.

Mail Servers

1stengineering.com uses one mail server — smtp.rzone.de.

The mail server setup of 1stengineering.com matches that of other domains such as ainasfika.nl, null.campusodins.com, ljgservices.com and two others.

smtp.rzone.de resolves to two IP numbers — 81.169.145.98 and 2a01:238:20a:202:50f0::2097.