`challengeaarhus.com`

DNSSEC	⚠️ Not signed
A	5.9.231.250^{🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5}
		PTR	`web1.samba.cinfuhost.com`
NS	`da1ns.cinfuhost.com` ⭐
		A	5.9.231.245^{🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5}
			PTR	`da1ns.cinfuhost.com`
NS	`da2ns.cinfuhost.com`
		A	104.243.33.193^{🇺🇸 RELIABLESITENET-1104.243.33.0/24 101 Possumtown Rd Piscataway, NJ 08854 United States}
			PTR	`da2ns.cinfuhost.com`
MX	`mail.challengeaarhus.com` ⭐
		A	5.9.231.250^{🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5}
			PTR	`web1.samba.cinfuhost.com`
TXT	`v=spf1 a mx ip4:5.9.231.249 ip6:2a01:4f8:241:52cd:0:0:5f64:d1d1 ~all`
SOA	`da1ns.cinfuhost.com`hostmaster@challengeaarhus.com 2026-07-01 #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=1786166314

WOT: UNKNOWN (61/100)

Previously MX for

challengeaarhus.com

Same first word

challengeaarhus.com

DNS History

16 records (4 active, 12 former)

●NSda1ns.cinfuhost.com2026-08-04 → 2026-08-08 · 3 obs

○ 2026-06-12 22:38:42
● 2026-08-04 15:24:56
● 2026-08-08 05:18:58

●NSda2ns.cinfuhost.com2026-08-04 → 2026-08-08 · 3 obs

○ 2026-06-12 22:38:42
● 2026-08-04 15:24:56
● 2026-08-08 05:18:58

○NSns1.hostpapa.com2015-07-21 → 2016-07-04 · 4 obs

● 2015-07-21 11:06:00
● 2016-07-04 01:16:00
○ 2017-02-10 13:42:02
○ 2026-08-08 05:18:58

○NSns1.hostrica.com2026-05-14 → 2026-06-12 · 5 obs

○ 2018-10-03 18:02:46
● 2026-05-14 21:27:38
● 2026-06-12 22:38:42
○ 2026-08-04 15:24:56
○ 2026-08-08 05:18:58

○NSns1.namebrightdns.com2017-02-10 → 2018-10-03 · 5 obs

○ 2016-07-04 01:16:00
● 2017-02-10 13:42:02
● 2018-10-03 18:02:46
○ 2026-05-14 21:27:38
○ 2026-08-08 05:18:58

○NSns2.hostpapa.com2015-07-21 → 2016-07-04 · 4 obs

● 2015-07-21 11:06:00
● 2016-07-04 01:16:00
○ 2017-02-10 13:42:02
○ 2026-08-08 05:18:58

○NSns2.hostrica.com2026-05-14 → 2026-06-12 · 5 obs

○ 2018-10-03 18:02:46
● 2026-05-14 21:27:38
● 2026-06-12 22:38:42
○ 2026-08-04 15:24:56
○ 2026-08-08 05:18:58

○NSns2.namebrightdns.com2017-02-10 → 2018-10-03 · 5 obs

○ 2016-07-04 01:16:00
● 2017-02-10 13:42:02
● 2018-10-03 18:02:46
○ 2026-05-14 21:27:38
○ 2026-08-08 05:18:58

○MXchallengeaarhus.com2015-07-21 → 2026-06-12 · 8 obs

● 2015-07-21 11:06:00
● 2016-07-04 01:16:00
○ 2017-02-10 13:42:02
○ 2018-10-03 18:02:46
● 2026-05-14 21:27:38
● 2026-06-12 22:38:42
○ 2026-08-04 15:24:56
○ 2026-08-08 05:18:58

●MXmail.challengeaarhus.com2026-08-04 → 2026-08-08 · 3 obs

○ 2026-06-12 22:38:42
● 2026-08-04 15:24:56
● 2026-08-08 05:18:58

○A198.23.213.2282026-05-14 → 2026-06-12 · 5 obs

○ 2018-10-03 18:02:46
● 2026-05-14 21:27:38
● 2026-06-12 22:38:42
○ 2026-08-04 15:24:56
○ 2026-08-08 05:18:58

○A34.199.151.1632017-02-10 → 2017-02-10 · 4 obs

○ 2016-07-04 01:16:00
● 2017-02-10 13:42:02
○ 2018-10-03 18:02:46
○ 2026-08-08 05:18:58

●A5.9.231.2502026-08-04 → 2026-08-08 · 3 obs

○ 2026-06-12 22:38:42
● 2026-08-04 15:24:56
● 2026-08-08 05:18:58

○A52.20.154.32017-02-10 → 2017-02-10 · 4 obs

○ 2016-07-04 01:16:00
● 2017-02-10 13:42:02
○ 2018-10-03 18:02:46
○ 2026-08-08 05:18:58

○A69.28.199.502015-07-21 → 2016-07-04 · 4 obs

● 2015-07-21 11:06:00
● 2016-07-04 01:16:00
○ 2017-02-10 13:42:02
○ 2026-08-08 05:18:58

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-02-10 → 2018-10-03 · 4 obs

● 2017-02-10 13:42:02
● 2018-10-03 18:02:46
○ 2026-05-14 21:27:38
○ 2026-08-08 05:18:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net...	-
challengeaarhus.com	da1ns.cinfuhost.com, da2ns.cinfuhost.com	2 records

✅ Authoritative Response

Server:104.243.33.193

NS records: da1ns.cinfuhost.com, da2ns.cinfuhost.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for challengeaarhus.com (unsigned zone)

⏱️ Timing

Total: 214ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.9.231.250`
NS	2	`da2ns.cinfuhost.com, da1ns.cinfuhost.com`
MX	1	`mail.challengeaarhus.com (pri: 10)`
TXT	1	`v=spf1 a mx ip4:5.9.231.249 ip6:2a01:4f8`
SOA	1	`da1ns.cinfuhost.com hostmaster.challenge`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (da1ns.cinfuhost.com, da2ns.cinfuhost.com)

Analysis

IP Addresses

challengeaarhus.com directs to one IP number, which is 5.9.231.250.

Among the host names that share IP numbers with challengeaarhus.com are tabakas.eu, mail.omegasus.com, rioguiaoficial.com.br and two others.

Name Servers

The NS records for challengeaarhus.com delegate to da1ns.cinfuhost.com and da2ns.cinfuhost.com.

challengeaarhus.com has name servers in common with other domains; inversoresmilano.com is one such domain.

da1ns.cinfuhost.com directs to 5.9.231.245 and da2ns.cinfuhost.com directs to 104.243.33.193; each host name points to exactly one IP number.

Mail Servers

challengeaarhus.com routes its mail through a single mail server, mail.challengeaarhus.com.

mail.challengeaarhus.com resolves to 5.9.231.250 and no other IP number.

challengeaarhus.com - robtex.com