openknowledge.eu - dns.ninja

`openknowledge.eu`

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

`eu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`si.dns.eu` ⭐
	NS	`be.dns.eu`
	NS	`w.dns.eu`
	NS	`x.dns.eu`
	NS	`y.dns.eu`
	SOA	`si.dns.eu`tech@eurid.eu serial=1125144647

Same first word

openknowledge.hk

openknowledge.eu

openknowledge.org

openknowledge.wixsite.com

openknowledge.be

openknowledge.ie

openknowledge.de

Similar names

knowledgeopen.info

knowledgeopen.com

DNS History

11 records (6 active, 5 former)

○NSa.ns14.net2015-06-02 → 2018-06-13 · 4 obs

● 2015-06-02 23:43:40
● 2018-06-13 23:37:32
○ 2026-02-21 12:41:16
○ 2026-06-13 18:01:48

○NSb.ns14.net2015-06-02 → 2018-06-13 · 4 obs

● 2015-06-02 23:43:40
● 2018-06-13 23:37:32
○ 2026-02-21 12:41:16
○ 2026-06-13 18:01:48

○NSc.ns14.net2015-06-02 → 2018-06-13 · 4 obs

● 2015-06-02 23:43:40
● 2018-06-13 23:37:32
○ 2026-02-21 12:41:16
○ 2026-06-13 18:01:48

○NSd.ns14.net2015-06-02 → 2018-06-13 · 4 obs

● 2015-06-02 23:43:40
● 2018-06-13 23:37:32
○ 2026-02-21 12:41:16
○ 2026-06-13 18:01:48

●NSns.udag.de2026-02-21 → 2026-06-13 · 3 obs

○ 2018-06-13 23:37:32
● 2026-02-21 12:41:16
● 2026-06-13 18:01:48

●NSns.udag.net2026-02-21 → 2026-06-13 · 3 obs

○ 2018-06-13 23:37:32
● 2026-02-21 12:41:16
● 2026-06-13 18:01:48

●NSns.udag.org2026-02-21 → 2026-06-13 · 3 obs

○ 2018-06-13 23:37:32
● 2026-02-21 12:41:16
● 2026-06-13 18:01:48

●MXmx00.udag.de2026-02-21 → 2026-06-13 · 2 obs

● 2026-02-21 12:41:16
● 2026-06-13 18:01:48

●MXmx01.udag.de2026-02-21 → 2026-06-13 · 2 obs

● 2026-02-21 12:41:16
● 2026-06-13 18:01:48

○A178.251.112.332015-06-02 → 2018-06-13 · 4 obs

● 2015-06-02 23:43:40
● 2018-06-13 23:37:32
○ 2026-02-21 12:41:16
○ 2026-06-13 18:01:48

●A89.31.143.902026-02-21 → 2026-06-13 · 3 obs

○ 2018-06-13 23:37:32
● 2026-02-21 12:41:16
● 2026-06-13 18:01:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
eu	w.dns.eu, x.dns.eu, y.dns.eu, be.dns.eu...	-
openknowledge.eu	ns.udag.de, ns.udag.net, ns.udag.org	-

✅ 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 openknowledge.eu (unsigned zone)

⏱️ Timing

Total: 473ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.31.143.90`
NS	3	`ns.udag.de, 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`

Analysis

IP Addresses

openknowledge.eu points to a single IP number: 89.31.143.90.

Additional host names — stemmer.ie, malu-online.eu, vermittlung-pflegekraefte.de and two others — share IP numbers with openknowledge.eu.

Name Servers

openknowledge.eu is delegated to three name servers: ns.udag.de, ns.udag.net and ns.udag.org.

The name servers of openknowledge.eu overlap at least partially with those of other domains — among them serious-drinking.de, my-balance.org, sgi.immo and two more.

ns.udag.de, ns.udag.net and ns.udag.org each resolve to two IP addresses: ns.udag.de resolves to 217.160.80.253 and 2001:8d8:fe:53:217:160:80:253; ns.udag.net resolves to 185.132.33.253 and 2607:f1c0:fe:53:185:132:33:253; ns.udag.org resolves to 185.132.34.253 and 2607:f1c0:fe:53:185:132:34:253.

Mail Servers

openknowledge.eu has two mail servers: mx00.udag.de and mx01.udag.de.

openknowledge.eu shares the same mail server setup as other domains, including ratgeber---forum.de, bringbo.com, gemcenter.de and two others.

Both mx00.udag.de and mx01.udag.de have a single IP address each — mx00.udag.de resolves to 62.146.106.39 while mx01.udag.de resolves to 62.146.106.40.