chrost.dk

📜 Historical scan 2026-06-26 15:27:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

chrost.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 80.198.193.7 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by chrost-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 34ms

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 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.198.193.7	3600s	—	AS3292	TDC Holding A/S	80.196.0.0/14	🇩🇰 Denmark	Børkop

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	chrost-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::b 2a01:111:f403:ca09::3 2a01:111:f403:ca09::4 52.101.68.0 52.101.68.16 52.101.73.22 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 171ms

TXT Record
MS=ms77317579
v=spf1 a mx ip4:80.198.193.0/24 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (chrost.dk)
-all (hard fail)	v=spf1 a mx ip4:80.198.193.0/24 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.chrost.dk)
p=quarantine	v=DMARC1; p=quarantine; fo=1

📬 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#

latest probe, not this scan · checked 2026-10-14 18:00:44

www	80.198.193.7 (AS3292) (address records, no CNAME)
www vs bare domain	Same network chrost.dk: 80.198.193.7 (AS3292) www.chrost.dk: 80.198.193.7 (AS3292)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-chrost-dk._domainkey.chrost.y-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

49ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2025100508
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#

34ms

28ms

45ms

AAAA

46ms

TXT

171ms

CAA

29ms

HTTPS

49ms

TLSA

471ms

SOA

34ms

MTA-STS

32ms

DNSSEC

49ms

SRV

33ms

Total

1023ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 18:40:53	892ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 11:53:54	886ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 15:27:42 shown	1023ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 20:46:16	906ms	2 NS 1 A 1 MX	🔒 Secure