`optimumassessment.com`

DNSSEC	🔒 Signed (DS record present)
A	2001:4018:8800:3::78^{🇳🇱 Interconnect2001:4018::/32 MLC/InterConnect routed block}
A	213.206.225.24^{🇳🇱 Interconnect213.206.192.0/18 MLC/InterConnect routed block}
NS	`ns0.transip.net` ⭐
		A	2a01:7c8:dddd:195::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns0.transip.net`
		A	195.135.195.195^{🇮🇹 TRANSIP-AS195.135.195.0/24 TransIP B.V.}
			PTR	`ns0.transip.net`
NS	`ns1.transip.nl`
		A	2a01:7c8:7000:195::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns1.transip.nl`
		A	195.8.195.195^{🇳🇱 TRANSIP-AS195.8.195.0/24 TransIP B.V.}
			PTR	`ns1.transip.nl`
NS	`ns2.transip.eu`
		A	2a01:7c8:f:c1f::195^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns2.transip.eu`
		A	37.97.199.195^{🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands}
			PTR	`ns2.transip.eu`
MX	`optimumassessment-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::1^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::20^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00400.inbound.protection.outlook.com`
		A	52.101.68.25^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db8pr02cu00101.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.2^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as9pr07cu00302.inbound.protection.outlook.com`
		A	52.101.73.30^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00306.inbound.protection.outlook.com`
TXT	`iVXzjLco0dWCgMwtxeBnbjLmZWBLI5JingDBLr5BYUTjRUZEDTo2yvzhSAl3PWFv`
TXT	`VUFSdtge2Hpv1bTqgNWh9fTt1YxcPJwUGW1oTKCxXj3H7zGupOQu44NVTd64dM0H`
TXT	`YTy2CLoXJ5tXCxDpC0a4FGtSwMbb1wWrSzcNgHMtJunE7IqGGLPmA9juHJcChkpC`
TXT	`8yCpupe4AEfuLYzI4Bl8itJw4ilcIrJAX7BVFMCBMyKyFEfXk5sKmxqaQXBdQXDy`
TXT	`4cklR8JxqxNNOyBEpG05FJsjE1RxAlKfdi5ynSYf049CdniIfH2b079HccSssuMD`
TXT	`d2EmtTG6RIZzr20Xb524fGPa0pqEp6NOSnbXCWmcqvuuaf32hSIDy5Gmp62SYuSL`
TXT	`google-site-verification=2v2jwSNUX2MU7KcSx1cTiyqiEugYUhRGv28hy9lf_Uk`
TXT	`v=spf1 ip4:213.206.225.24 include:spf.topdesk.net include:spf.protection.outl...`
TXT	`lfY8(0x733358)CIm5EnhMzYaUSd2magQQRVPl8bkPhZemaMyKt6KGOf5LeL6dB7PZoRjIS`
TXT	`wju6kszFwQ3RAnYb1ln812DIiKPhJtxJPsx0ktj2kMHuLcYBSor17VPO5km5U8pm`
TXT	`0dija4aWxgRUBjR4mGF4s8qbIxhmFp3y37Cxjotc7K3heQPeG3Cz3tTRKAFPscvz`
SOA	`ns0.transip.net`hostmaster@transip.nl 2026-04-07 #4

`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=1776229717

Same first word

optimumassessment.com

DNS History

7 records (6 active, 1 former)

●NSns0.transip.net2018-10-19 → 2026-04-15 · 2 obs

● 2018-10-19 16:28:32
● 2026-04-15 05:30:18

●NSns1.transip.nl2018-10-19 → 2026-04-15 · 2 obs

● 2018-10-19 16:28:32
● 2026-04-15 05:30:18

●NSns2.transip.eu2018-10-19 → 2026-04-15 · 2 obs

● 2018-10-19 16:28:32
● 2026-04-15 05:30:18

●MXoptimumassessment-com.mail.protection.outlook.com2026-04-02 → 2026-04-15 · 2 obs

● 2026-04-02 00:53:56
● 2026-04-15 05:30:18

○A136.144.173.2512018-10-19 → 2018-10-19 · 3 obs

● 2018-10-19 16:28:32
○ 2026-04-02 00:53:56
○ 2026-04-15 05:30:18

●A2001:4018:8800:3::782026-04-02 → 2026-04-15 · 3 obs

○ 2018-10-19 16:28:32
● 2026-04-02 00:53:56
● 2026-04-15 05:30:18

●A213.206.225.242026-04-02 → 2026-04-15 · 3 obs

○ 2018-10-19 16:28:32
● 2026-04-02 00:53:56
● 2026-04-15 05:30:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
optimumassessment.com	ns1.transip.nl, ns0.transip.net, ns2.transip.eu	-

✅ Authoritative Response

Server:37.97.199.195

NS records: ns1.transip.nl, ns0.transip.net, ns2.transip.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 709ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`213.206.225.24`
AAAA	1	`2001:4018:8800:3::78`
NS	3	`ns2.transip.eu, ns1.transip.nl...`
MX	1	`optimumassessment-com.mail.protection.ou`
TXT	11	`VUFSdtge2Hpv1bTqgNWh9fTt1YxcPJwUGW1oTKCx, v=spf1 ip4:213.206.225.24 include:spf.to...`
SOA	1	`ns0.transip.net hostmaster.transip.nl`

Analysis

IP Addresses

optimumassessment.com resolves to two IP numbers: 2001:4018:8800:3::78 and 213.206.225.24.

Other host names share IP numbers with optimumassessment.com; for instance citrus.nl.

Name Servers

optimumassessment.com delegates to three name servers: ns2.transip.eu, ns0.transip.net and ns1.transip.nl.

optimumassessment.com shares some name servers with other domains, for example norminterpretatie.com, joorz.eu, dukediego.nl, esailing.nl and tordoir.com.

Host names with two IP numbers:

ns2.transip.eu: 2a01:7c8:f:c1f::195 and 37.97.199.195

ns0.transip.net: 2a01:7c8:dddd:195::195 and 195.135.195.195

ns1.transip.nl: 2a01:7c8:7000:195::195 and 195.8.195.195

Mail Servers

optimumassessment.com is handled by a single mail server, optimumassessment-com.mail.protection.outlook.com.

Host optimumassessment-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::1, 2a01:111:f403:ca09::5, 2a01:111:f403:ca09::6, 2a01:111:f403:ca09::20, 52.101.68.25, 52.101.68.29, 52.101.73.2 and 52.101.73.30.

optimumassessment.com - robtex.com