`open-source-consulting.com`

DNSSEC	⚠️ Not signed
A	127.0.0.1
NS	`ns1.first-ns.de` ⭐
		A	2a01:4f8:0:a101::a:1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns1.first-ns.de`
		A	213.239.242.238^{🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2}
			PTR	`ns1.first-ns.de`
NS	`robotns2.second-ns.de`
		A	2a01:4f8:0:1::5ddc:2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`robotns2.second-ns.de`
		A	213.133.100.103^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`robotns2.second-ns.de`
NS	`robotns3.second-ns.com`
		A	2001:67c:192c::add:a3^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`robotns3.second-ns.com`
		A	193.47.99.3^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
			PTR	`robotns3.second-ns.com`
MX	`mail.open-source-consulting.com` ⭐
		A	127.0.0.1
SOA	`ns1.first-ns.de`dns@hetzner.com 2026-04-14 #0

`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=1778830336

Same first word

open-source-consulting.com

open-source-consulting.at

DNS History

5 records (5 active, 0 former)

●NSns1.first-ns.de2015-05-28 → 2026-05-15 · 2 obs

● 2015-05-28 17:36:50
● 2026-05-15 07:53:28

●NSrobotns2.second-ns.de2015-05-28 → 2026-05-15 · 2 obs

● 2015-05-28 17:36:50
● 2026-05-15 07:53:28

●NSrobotns3.second-ns.com2015-05-28 → 2026-05-15 · 2 obs

● 2015-05-28 17:36:50
● 2026-05-15 07:53:28

●MXmail.open-source-consulting.com2015-05-28 → 2026-05-15 · 2 obs

● 2015-05-28 17:36:50
● 2026-05-15 07:53:28

●A127.0.0.12015-05-28 → 2026-05-15 · 2 obs

● 2015-05-28 17:36:50
● 2026-05-15 07:53:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net...	-
open-source-consulting.com	ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com	2 records

✅ Authoritative Response

Server:213.239.242.238

NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-source-consulting.com (unsigned zone)

⏱️ Timing

Total: 1388ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`127.0.0.1`
NS	3	`robotns2.second-ns.de, robotns3.second-ns.com...`
MX	1	`mail.open-source-consulting.com (pri: 10`
SOA	1	`ns1.first-ns.de dns.hetzner.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (robotns3.second-ns.com, robotns3.second-ns.com)

Analysis

IP Addresses

open-source-consulting.com points to a single IP number: 127.0.0.1.

Other host names, for instance mail.qmgr.co.uk, daeryun.net, freelancermap.biz, h01301https01.bwtck.com and paperchord.com share IP numbers with open-source-consulting.com.

Name Servers

The delegation for open-source-consulting.com is handled by three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

open-source-consulting.com at least partially shares name servers with other domains, for instance goju-ryu.at, vvv.ch, jammers.de, sbnv.de and annotate.at.

These name servers are commonly used with the name servers ns.vvv.ch.

Two IP numbers per host:

robotns3.second-ns.com points to 2001:67c:192c::add:a3 and 193.47.99.3.

ns1.first-ns.de points to 2a01:4f8:0:a101::a:1 and 213.239.242.238.

robotns2.second-ns.de points to 2a01:4f8:0:1::5ddc:2 and 213.133.100.103.

Mail Servers

open-source-consulting.com is handled by a single mail server, mail.open-source-consulting.com.

mail.open-source-consulting.com points to a single IP: 127.0.0.1.

open-source-consulting.com - robtex.com