🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`flexknowledge.com`

DNSSEC	⚠️ Not signed
A	192.166.99.66^{🇳🇱 A2B192.166.96.0/22 Route originating in AS51088 for Effect-ICT B.V.}
NS	`ns1.openprovider.nl` ⭐
		A	2400:cb00:2049:1::a29f:1a0a^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.10^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.openprovider.be`
		A	2400:cb00:2049:1::a29f:1b60^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.27.96^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns3.openprovider.eu`
		A	2400:cb00:2049:1::a29f:3059^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.48.89^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`flexwerkadvies-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c967::8^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cpjpr04cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::1^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::8^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db5pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::f^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00507.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
		A	52.101.73.155^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr02cu00203.inbound.protection.outlook.com`
		A	52.101.103.39^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-miypr05cu00207.inbound.protection.outlook.com`
		A	52.101.181.156^{🇵🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-wa4pr05cu00104.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com ip4:185.232.249.9 ip4:91.238.177.78...`
TXT	`MS=ms87834238`
SOA	`ns1.openprovider.nl`dns@openprovider.eu 2023-06-26 #1

`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=1788993453

Previously MX for

flexknowledge.com

Same first word

flexknowledge.nl

flexknowledge.com

flexknowledge.eu

Similar names

knowledgeflex.com

Previous names

Next names

flexko.com

flexkobs.com

flexkodersbrazil.com

flexkom-dev.com

flexkom-store.com

flexkom.com

flexkomapp.com

flexkommail.com

flexkompoland.com

DNS History

16 records (5 active, 11 former)

○NSns0.transip.net2015-07-03 → 2016-05-03 · 4 obs

● 2015-07-03 16:22:10
● 2016-05-03 00:09:00
○ 2017-01-12 10:44:20
○ 2026-09-09 22:49:00

○NSns1.lanlogic.nl2017-01-12 → 2019-01-31 · 5 obs

○ 2016-05-03 00:09:00
● 2017-01-12 10:44:20
● 2019-01-31 23:12:16
○ 2026-09-01 00:42:20
○ 2026-09-09 22:49:00

●NSns1.openprovider.nl2026-09-01 → 2026-09-09 · 3 obs

○ 2019-01-31 23:12:16
● 2026-09-01 00:42:20
● 2026-09-09 22:49:00

○NSns1.transip.nl2015-07-03 → 2016-05-03 · 4 obs

● 2015-07-03 16:22:10
● 2016-05-03 00:09:00
○ 2017-01-12 10:44:20
○ 2026-09-09 22:49:00

○NSns2.lanlogic.nl2017-01-12 → 2019-01-31 · 5 obs

○ 2016-05-03 00:09:00
● 2017-01-12 10:44:20
● 2019-01-31 23:12:16
○ 2026-09-01 00:42:20
○ 2026-09-09 22:49:00

●NSns2.openprovider.be2026-09-01 → 2026-09-09 · 3 obs

○ 2019-01-31 23:12:16
● 2026-09-01 00:42:20
● 2026-09-09 22:49:00

○NSns2.transip.eu2015-07-03 → 2016-05-03 · 4 obs

● 2015-07-03 16:22:10
● 2016-05-03 00:09:00
○ 2017-01-12 10:44:20
○ 2026-09-09 22:49:00

●NSns3.openprovider.eu2026-09-01 → 2026-09-09 · 3 obs

○ 2019-01-31 23:12:16
● 2026-09-01 00:42:20
● 2026-09-09 22:49:00

○MXflexknowledge.com2015-07-03 → 2015-11-10 · 4 obs

● 2015-07-03 16:22:10
● 2015-11-10 08:17:04
○ 2016-02-12 00:14:40
○ 2026-09-09 22:49:00

●MXflexwerkadvies-com.mail.protection.outlook.com2026-09-01 → 2026-09-09 · 3 obs

○ 2019-01-31 23:12:16
● 2026-09-01 00:42:20
● 2026-09-09 22:49:00

○MXmx.transip.email2016-02-12 → 2019-01-31 · 5 obs

○ 2015-11-10 08:17:04
● 2016-02-12 00:14:40
● 2019-01-31 23:12:16
○ 2026-09-01 00:42:20
○ 2026-09-09 22:49:00

○MXrelay.transip.nl2015-07-03 → 2015-11-10 · 4 obs

● 2015-07-03 16:22:10
● 2015-11-10 08:17:04
○ 2016-02-12 00:14:40
○ 2026-09-09 22:49:00

●A192.166.99.662026-09-01 → 2026-09-09 · 3 obs

○ 2019-01-31 23:12:16
● 2026-09-01 00:42:20
● 2026-09-09 22:49:00

○A212.114.110.2172017-01-12 → 2019-01-31 · 5 obs

○ 2016-05-03 00:09:00
● 2017-01-12 10:44:20
● 2019-01-31 23:12:16
○ 2026-09-01 00:42:20
○ 2026-09-09 22:49:00

○A2a01:7c8:eb:0:95:170:70:1162015-07-03 → 2016-05-03 · 4 obs

● 2015-07-03 16:22:10
● 2016-05-03 00:09:00
○ 2017-01-12 10:44:20
○ 2026-09-09 22:49:00

○A95.170.70.1162015-07-03 → 2016-05-03 · 4 obs

● 2015-07-03 16:22:10
● 2016-05-03 00:09:00
○ 2017-01-12 10:44:20
○ 2026-09-09 22:49:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net...	-
flexknowledge.com	ns1.openprovider.nl, ns3.openprovider.eu, ns2.openprovider.be	-

✅ Authoritative Response

Server:162.159.27.96

NS records: ns1.openprovider.nl, ns3.openprovider.eu, ns2.openprovider.be

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 437ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.166.99.66`
NS	3	`ns3.openprovider.eu, ns2.openprovider.be...`
MX	1	`flexwerkadvies-com.mail.protection.outlo`
TXT	2	`MS=ms87834238, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.openprovider.nl dns.openprovider.eu`

Analysis

IP Addresses

flexknowledge.com has exactly one IP address — 192.166.99.66.

fysiowantveld.nl, noordwijkcongress.com, monkeyblue.nl plus two other host names have IP numbers in common with flexknowledge.com.

Name Servers

DNS for flexknowledge.com is handled by three authoritative name servers: ns2.openprovider.be, ns3.openprovider.eu and ns1.openprovider.nl.

There is at least partial name server overlap between flexknowledge.com and other domains — newbooksbybaker.com, lasportiva-france.fr, rentavillainsuriname.com and two more among them.

Three hostnames — ns2.openprovider.be, ns3.openprovider.eu and ns1.openprovider.nl — each have two IP addresses: ns2.openprovider.be has 162.159.27.96 and 2400:cb00:2049:1::a29f:1b60, ns3.openprovider.eu has 162.159.48.89 and 2400:cb00:2049:1::a29f:3059, and ns1.openprovider.nl has 162.159.26.10 and 2400:cb00:2049:1::a29f:1a0a.

Mail Servers

flexknowledge.com uses one mail server — flexwerkadvies-com.mail.protection.outlook.com.

flexknowledge.com uses the same mail servers as other domains, including flexknowledge.eu.

flexwerkadvies-com.mail.protection.outlook.com has 8 IP addresses: 52.101.73.153, 52.101.73.155, 52.101.103.39 plus 5 more.

flexknowledge.com - robtex.com