alcatraz.dk

Records from scan: 2026-09-25 18:18:06 · 503ms total · last checked 2026-10-17 15:39 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

alcatraz.dk is a .dk domain served by 2 nameservers (ns1.123hotel.dk, ns2.123hotel.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.109.52 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 39ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.123hotel.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.123hotel.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.109.52	3600s	web12.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

2 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	3600s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	94.231.109.52
🔶 Autoconfig	94.231.109.52

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 148ms

TXT Record
v=spf1 a include:spf.curanet.dk include:mailgun.org ~all

✉️ SPF#

Policy	Record (alcatraz.dk)
~all (soft fail)	v=spf1 a include:spf.curanet.dk include:mailgun.org ~all

📨 DMARC#

Policy	Record (_dmarc.alcatraz.dk)
p=quarantine	v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; fo=1;ruf=mailto:kontakt@alcatraz.dk; rf=afrf; pct=100; ri=86400

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-13 10:51:21

www	94.231.109.52 (AS48854) (address records, no CNAME)
www vs bare domain	Same network alcatraz.dk: 94.231.109.52 (AS48854) www.alcatraz.dk: 94.231.109.52 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY
BIMI	v=BIMI1; l=https://www.alcatraz.dk/alcatraz.svg; a=self

🔎 SPF check#

zone-wide SPF report

DNS lookups: 9/10 · policy: ~all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

81ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026082401
Primary NS (MNAME)	ns1.123hotel.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

39ms

41ms

40ms

AAAA

49ms

TXT

148ms

CAA

43ms

HTTPS

34ms

TLSA

55ms

SOA

0ms

MTA-STS

56ms

DNSSEC

81ms

SRV

52ms

Total

503ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 18:18:06 shown	503ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-01 20:25:31	475ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-28 09:31:29	805ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-25 05:00:24	1738ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-20 00:47:38	9531ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-16 12:46:55	775ms	2 NS 1 A 2 MX	🔒 Secure