krf.dk

📜 Historical scan 2026-08-12 05:13:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

krf.dk is a .dk domain served by 2 nameservers (pedro.ns.cloudflare.com, roxy.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.34.154 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by krf-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 44ms

Nameserver	IP addresses	PTR	ASN / ISP
pedro.ns.cloudflare.com	108.162.195.183 162.159.44.183 172.64.35.183 2606:4700:58::a29f:2cb7 2803:f800:50::6ca2:c3b7 2a06:98c1:50::ac40:23b7	pedro.ns.cloudflare.com pedro.ns.cloudflare.com pedro.ns.cloudflare.com pedro.ns.cloudflare.com pedro.ns.cloudflare.com pedro.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
roxy.ns.cloudflare.com	108.162.192.142 172.64.32.142 173.245.58.142 2606:4700:50::adf5:3a8e 2803:f800:50::6ca2:c08e 2a06:98c1:50::ac40:208e	roxy.ns.cloudflare.com roxy.ns.cloudflare.com roxy.ns.cloudflare.com roxy.ns.cloudflare.com roxy.ns.cloudflare.com roxy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.34.154	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.205.231	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	krf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::b 2a01:111:f403:ca04::e 2a01:111:f403:ca09::c 52.101.68.16 52.101.68.25 52.101.68.36 52.101.73.4	mail-db5pr02cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:229a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:cde7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.34.154,172.67.205.231 ech=AEX+DQBBNwAgACA6vFFY7Dsg9igyBaPl/9dZwwdCuoD3H66rjI4F1KLcGAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:229a,2606:4700:3033::ac43:cde7

🔌 SRV Records#

1 records 91ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 208ms

TXT Record
MS=ms21546401
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (krf.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-08 11:45:27

www	104.21.34.154 172.67.205.231 2606:4700:3032::6815:229a 2606:4700:3033::ac43:cde7 (AS13335) (address records, no CNAME)
www vs bare domain	Same network krf.dk: 104.21.34.154 172.67.205.231 2606:4700:3032::6815:229a 2606:4700:3033::ac43:cde7 (AS13335) www.krf.dk: 104.21.34.154 172.67.205.231 2606:4700:3032::6815:229a 2606:4700:3033::ac43:cde7 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

99ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411962732
Primary NS (MNAME)	pedro.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

44ms

53ms

59ms

AAAA

41ms

TXT

208ms

CAA

46ms

HTTPS

51ms

TLSA

483ms

SOA

0ms

MTA-STS

84ms

DNSSEC

99ms

SRV

91ms

Total

2010ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-28 22:05:50	1676ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-22 13:19:15	2123ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-11 02:39:30	2787ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 15:02:13	1519ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 13:15:51	1851ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-23 05:21:04	2189ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-12 05:13:05 shown	2010ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-25 14:58:00	3255ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-19 20:42:46	1974ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-01 08:59:57	1164ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 12:39:17	1302ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-24 12:08:04	1467ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 22:29:29	1701ms	2 NS 2 A 1 MX	🔒 Secure