🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`olsechallenge.be`

DNSSEC	⚠️ Not signed
A	2a02:cec0:10:12d::1^{🇳🇱 NEDZONE-AS2a02:cec0::/30 ISE routing}
		PTR	`mail.123-webserver.biz`
A	83.172.182.34^{🇳🇱 NEDZONE-AS83.172.180.0/22 ISE routing}
NS	`ns1.123-webserver.biz` ⭐
		A	2a02:cec0:10:12d::1^{🇳🇱 NEDZONE-AS2a02:cec0::/30 ISE routing}
			PTR	`mail.123-webserver.biz`
		A	83.172.182.34^{🇳🇱 NEDZONE-AS83.172.180.0/22 ISE routing}
			PTR	`mail.123-webserver.biz`
NS	`ns2.123-webserver.biz`
		A	2a02:cec0:10:12d::2^{🇳🇱 NEDZONE-AS2a02:cec0::/30 ISE routing}
			PTR	`mail.123-webserver.biz`
		A	83.172.183.34^{🇳🇱 NEDZONE-AS83.172.180.0/22 ISE routing}
			PTR	`mail.123-webserver.biz`
MX	`mail.olsechallenge.be` ⭐
		A	2a02:cec0:10:12d::1^{🇳🇱 NEDZONE-AS2a02:cec0::/30 ISE routing}
			PTR	`mail.123-webserver.biz`
		A	83.172.182.34^{🇳🇱 NEDZONE-AS83.172.180.0/22 ISE routing}
			PTR	`mail.123-webserver.biz`
TXT	`v=spf1 a mx include:relay.mailbaby.net ip4:83.172.182.34 ip4:83.172.180.0/22...`
SOA	`ns1.123-webserver.biz`root@olsechallenge.be 2026-01-04 #0

`be`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nsset.be` ⭐
	NS	`b.nsset.be`
	NS	`c.nsset.be`
	NS	`d.nsset.be`
	NS	`y.nsset.be`
	NS	`z.nsset.be`
	SOA	`a.nsset.be`be-hostmaster@dnsbelgium.be serial=1028257823

Subdomains

mail.olsechallenge.be

Same first word

olsechallenge.be

DNS History

6 records (5 active, 1 former)

●NSns1.123-webserver.biz2015-08-03 → 2026-08-16 · 2 obs

● 2015-08-03 19:43:48
● 2026-08-16 17:17:46

●NSns2.123-webserver.biz2015-08-03 → 2026-08-16 · 2 obs

● 2015-08-03 19:43:48
● 2026-08-16 17:17:46

●MXmail.olsechallenge.be2015-08-03 → 2026-08-16 · 2 obs

● 2015-08-03 19:43:48
● 2026-08-16 17:17:46

●A2a02:cec0:10:12d::12026-02-14 → 2026-08-16 · 3 obs

○ 2019-04-19 17:17:14
● 2026-02-14 19:17:34
● 2026-08-16 17:17:46

○A83.172.180.1452015-08-03 → 2019-04-19 · 4 obs

● 2015-08-03 19:43:48
● 2019-04-19 17:17:14
○ 2026-02-14 19:17:34
○ 2026-08-16 17:17:46

●A83.172.182.342026-02-14 → 2026-08-16 · 3 obs

○ 2019-04-19 17:17:14
● 2026-02-14 19:17:34
● 2026-08-16 17:17:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
be	a.nsset.be, b.nsset.be, c.nsset.be, d.nsset.be...	-
olsechallenge.be	ns1.123-webserver.biz, ns2.123-webserver.biz	-

✅ Authoritative Response

Server:83.172.182.34

NS records: ns1.123-webserver.biz, ns2.123-webserver.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for olsechallenge.be (unsigned zone)

⏱️ Timing

Total: 941ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`83.172.182.34`
AAAA	1	`2a02:cec0:10:12d::1`
NS	2	`ns1.123-webserver.biz, ns2.123-webserver.biz`
MX	1	`mail.olsechallenge.be (pri: 10)`
TXT	1	`v=spf1 a mx include:relay.mailbaby.net`
SOA	1	`ns1.123-webserver.biz root.olsechallenge`

Analysis

Hierarchy

olsechallenge.be is the parent zone for mail.olsechallenge.be.

IP Addresses

olsechallenge.be directs to two IP numbers, 83.172.182.34 and 2a02:cec0:10:12d::1

mail.croontec.com, aisgroep.com, mail.besteabonnement.com plus two other host names have IP numbers in common with olsechallenge.be.

Name Servers

Two name servers handle the delegation for olsechallenge.be: ns1.123-webserver.biz and ns2.123-webserver.biz.

The name server configuration of olsechallenge.be is shared with other domains, for instance lindaberends.nl, tangueria.be, zakelijkeabonnementen.com and two others.

ns1.123-webserver.biz and ns2.123-webserver.biz both carry two IP addresses. The A records for ns1.123-webserver.biz are 83.172.182.34 and 2a02:cec0:10:12d::1; the A records for ns2.123-webserver.biz are 83.172.183.34 and 2a02:cec0:10:12d::2.

Mail Servers

olsechallenge.be uses one mail server — mail.olsechallenge.be.

The host mail.olsechallenge.be resolves to 83.172.182.34 and 2a02:cec0:10:12d::1 — two IP addresses.

olsechallenge.be - robtex.com