open-knowledge.net - dns.ninja

`open-knowledge.net`

DNSSEC	⚠️ Not signed
A	89.31.143.90^{🇩🇪 UDAG89.31.143.0/24}
NS	`ns.udag.de` ⭐
		A	2001:8d8:fe:53:217:160:80:253^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns.udag.de`
		A	217.160.80.253^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns.udag.de`
NS	`ns.udag.net`
		A	2607:f1c0:fe:53:185:132:33:253^{🇺🇸 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	`ns.udag.net`
		A	185.132.33.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns.udag.net`
NS	`ns.udag.org`
		A	2607:f1c0:fe:53:185:132:34:253^{🇺🇸 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	`ns.udag.org`
		A	185.132.34.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns.udag.org`
MX	`mx00.udag.de` ⭐
		A	62.146.106.39^{🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH}
			PTR	`mx00.udag.de`
MX	`mx01.udag.de`⁽²⁰⁾
		A	62.146.106.40^{🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH}
			PTR	`mx01.udag.de`
TXT	`v=spf1 include:_smtp.udag.de ~all`
SOA	`ns.udag.de`hostmaster@united-domains.de 2023-12-18 #2

`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=1784819482

Subdomains

gw.open-knowledge.net

Same first word

open-knowledge.it

open-knowledge.com

open-knowledge.net

DNS History

11 records (6 active, 5 former)

○NSa.ns14.net2015-08-15 → 2017-07-06 · 4 obs

● 2015-08-15 16:30:34
● 2017-07-06 01:02:50
○ 2026-04-03 17:28:54
○ 2026-07-23 15:22:48

○NSb.ns14.net2015-08-15 → 2017-07-06 · 4 obs

● 2015-08-15 16:30:34
● 2017-07-06 01:02:50
○ 2026-04-03 17:28:54
○ 2026-07-23 15:22:48

○NSc.ns14.net2015-08-15 → 2017-07-06 · 4 obs

● 2015-08-15 16:30:34
● 2017-07-06 01:02:50
○ 2026-04-03 17:28:54
○ 2026-07-23 15:22:48

○NSd.ns14.net2015-08-15 → 2017-07-06 · 4 obs

● 2015-08-15 16:30:34
● 2017-07-06 01:02:50
○ 2026-04-03 17:28:54
○ 2026-07-23 15:22:48

●NSns.udag.de2026-04-03 → 2026-07-23 · 3 obs

○ 2017-07-06 01:02:50
● 2026-04-03 17:28:54
● 2026-07-23 15:22:48

●NSns.udag.net2026-04-03 → 2026-07-23 · 3 obs

○ 2017-07-06 01:02:50
● 2026-04-03 17:28:54
● 2026-07-23 15:22:48

●NSns.udag.org2026-04-03 → 2026-07-23 · 3 obs

○ 2017-07-06 01:02:50
● 2026-04-03 17:28:54
● 2026-07-23 15:22:48

●MXmx00.udag.de2026-04-03 → 2026-07-23 · 2 obs

● 2026-04-03 17:28:54
● 2026-07-23 15:22:48

●MXmx01.udag.de2026-04-03 → 2026-07-23 · 2 obs

● 2026-04-03 17:28:54
● 2026-07-23 15:22:48

○A178.251.112.332015-08-15 → 2017-07-06 · 4 obs

● 2015-08-15 16:30:34
● 2017-07-06 01:02:50
○ 2026-04-03 17:28:54
○ 2026-07-23 15:22:48

●A89.31.143.902026-04-03 → 2026-07-23 · 3 obs

○ 2017-07-06 01:02:50
● 2026-04-03 17:28:54
● 2026-07-23 15:22:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
open-knowledge.net	ns.udag.de, ns.udag.net, ns.udag.org	2 records

✅ Authoritative Response

Server:185.132.34.253

NS records: ns.udag.de, ns.udag.net, ns.udag.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-knowledge.net (unsigned zone)

⏱️ Timing

Total: 189ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.31.143.90`
NS	3	`ns.udag.net, ns.udag.org...`
MX	2	`mx00.udag.de (pri: 10), mx01.udag.de (pri: 20)`
TXT	1	`v=spf1 include:_smtp.udag.de ~all`
SOA	1	`ns.udag.de hostmaster.united-domains.de`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.udag.net, ns.udag.net)

Analysis

Hierarchy

The domain gw.open-knowledge.net falls under the parent open-knowledge.net.

IP Addresses

open-knowledge.net directs to one IP number, which is 89.31.143.90.

Among the host names that share IP numbers with open-knowledge.net are points-of.com, sportplatz.media, whatsweb.de and two others.

Name Servers

DNS for open-knowledge.net is handled by three authoritative name servers: ns.udag.de, ns.udag.net and ns.udag.org.

At least some of open-knowledge.net's name servers are shared with other domains, for example tillack-partner.de, tndyv.de, eucolab.com and two more.

Three hostnames — ns.udag.de, ns.udag.net and ns.udag.org — each have two IP addresses: ns.udag.de has 217.160.80.253 and 2001:8d8:fe:53:217:160:80:253, ns.udag.net has 185.132.33.253 and 2607:f1c0:fe:53:185:132:33:253, and ns.udag.org has 185.132.34.253 and 2607:f1c0:fe:53:185:132:34:253.

Mail Servers

The MX records for open-knowledge.net point to two mail servers: mx00.udag.de and mx01.udag.de.

open-knowledge.net has the same mail server arrangement as a number of other domains, for example tyrolwind.at, gluecksnester.org, fachanwalt-immobilienrecht.email and two more.

Each of mx00.udag.de and mx01.udag.de has one IP address: mx00.udag.de uses 62.146.106.39 and mx01.udag.de uses 62.146.106.40.