proknowledge.nl - dns.ninja

`proknowledge.nl`

DNSSEC	🔒 Signed (DS record present)
A	85.214.70.213^{🇩🇪 STRATO85.214.0.0/15 AG}
		PTR	`proknowledge.nl`
NS	`ns3.stratoserver.net` ⭐
		A	2607:f1c0:fe:53:185:132:34:159^{🇺🇸 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	`ns3.stratoserver.net`
		A	185.132.34.159^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns3.stratoserver.net`
NS	`ns4.stratoserver.net`
		A	2001:8d8:fe:53:5747:2a74:d:32^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
		A	217.160.80.159^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
MX	`relay.rzone.de`⁽¹⁰⁰⁾
		A	81.169.145.96^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`relay.rzone.de`
TXT	`protonmail-verification=eff66dc620608fce33353938d4558401f6a8ebb6`
TXT	`v=spf1 include:_spf.protonmail.ch include:sender.zohoinvoice.com`
SOA	`ns3.stratoserver.net`hostmaster@strato-rz.de 2020-05-18 #18

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-08-11 07:00:01 +0000 (EPOCH 1786431601)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-08-11 #14

PTR for

213.70.214.85.in-addr.arpa

Same first word

proknowledge.nl

Similar names

knowlegedrop.xyz

DNS History

15 records (6 active, 9 former)

○NSns0.transip.net2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

○NSns1.transip.nl2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

○NSns2.transip.eu2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

●NSns3.stratoserver.net2026-02-17 → 2026-08-11 · 3 obs

○ 2017-03-27 20:31:00
● 2026-02-17 18:21:40
● 2026-08-11 08:06:24

●NSns4.stratoserver.net2026-02-17 → 2026-08-11 · 3 obs

○ 2017-03-27 20:31:00
● 2026-02-17 18:21:40
● 2026-08-11 08:06:24

○MXalt1.aspmx.l.google.com2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

○MXalt2.aspmx.l.google.com2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

○MXaspmx.l.google.com2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

○MXaspmx2.googlemail.com2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

○MXaspmx3.googlemail.com2015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

●MXmail.protonmail.ch2026-02-17 → 2026-08-11 · 3 obs

○ 2017-03-27 20:31:00
● 2026-02-17 18:21:40
● 2026-08-11 08:06:24

●MXmailsec.protonmail.ch2026-02-17 → 2026-08-11 · 3 obs

○ 2017-03-27 20:31:00
● 2026-02-17 18:21:40
● 2026-08-11 08:06:24

●MXrelay.rzone.de2026-02-17 → 2026-08-11 · 3 obs

○ 2017-03-27 20:31:00
● 2026-02-17 18:21:40
● 2026-08-11 08:06:24

○A149.210.141.172015-08-19 → 2017-03-27 · 4 obs

● 2015-08-19 03:19:44
● 2017-03-27 20:31:00
○ 2026-02-17 18:21:40
○ 2026-08-11 08:06:24

●A85.214.70.2132026-02-17 → 2026-08-11 · 3 obs

○ 2017-03-27 20:31:00
● 2026-02-17 18:21:40
● 2026-08-11 08:06:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns3.dns.nl, ns1.dns.nl	-
proknowledge.nl	ns4.stratoserver.net, ns3.stratoserver.net	-

✅ Authoritative Response

Server:217.160.80.159

NS records: ns4.stratoserver.net, ns3.stratoserver.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 503ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.214.70.213`
NS	2	`ns4.stratoserver.net, ns3.stratoserver.net`
MX	3	`mailsec.protonmail.ch (pri: 20), mail.protonmail.ch (pri: 10)...`
TXT	2	`v=spf1 include:_spf.protonmail.ch includ, protonmail-verification=eff66dc620608fce`
SOA	1	`ns3.stratoserver.net hostmaster.strato-r`

Analysis

IP Addresses

proknowledge.nl resolves to one IP address: 85.214.70.213.

Other host names, such as proknowledge-services.com, share IP numbers with proknowledge.nl.

Name Servers

proknowledge.nl is delegated to two name servers: ns3.stratoserver.net and ns4.stratoserver.net.

proknowledge.nl uses the same name servers as several other domains — among them korsmann.com, dechert-engineering.com, tunnel.de and two more.

ns3.stratoserver.net and ns4.stratoserver.net each resolve to two IP addresses: ns3.stratoserver.net points to 185.132.34.159 and 2607:f1c0:fe:53:185:132:34:159, while ns4.stratoserver.net points to 217.160.80.159 and 2001:8d8:fe:53:5747:2a74:d:32.

Mail Servers

proknowledge.nl is handled by three mail servers: mail.protonmail.ch, mailsec.protonmail.ch and relay.rzone.de.

proknowledge.nl has at least partial mail server overlap with other domains such as wnas.nl, sendme.email, grmn.nl and two more.

Hostnames that resolve to three IP addresses:

mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128.

mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.

Hosts with just one IP address:

relay.rzone.de points to 81.169.145.96.