kalfri.dk

📜 Historical scan 2026-09-03 18:53:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kalfri.dk is a .dk domain served by 2 nameservers (bella.ns.cloudflare.com, mark.ns.cloudflare.com). It was registered on 27 September 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.79.60 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, 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 30ms

Nameserver	IP addresses	PTR	ASN / ISP
bella.ns.cloudflare.com	108.162.192.74 172.64.32.74 173.245.58.74 2606:4700:50::adf5:3a4a 2803:f800:50::6ca2:c04a 2a06:98c1:50::ac40:204a	bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mark.ns.cloudflare.com	108.162.193.130 172.64.33.130 173.245.59.130 2606:4700:58::adf5:3b82 2803:f800:50::6ca2:c182 2a06:98c1:50::ac40:2182	mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.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 26ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.79.60	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.142.138	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	173.194.221.26 2a00:1450:4010:c02::1a 2a00:1450:4010:c02::1a	lm-in-f26.1e100.net le-in-f26.1e100.net le-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4001:c01::1a	so-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4003:c26::1a	tp-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:8e8a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:4f3c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 27ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.79.60,172.67.142.138 ech=AEX+DQBBaAAgACDVSTPpM3hpHyr4UskBCfwrwlZvgJgid+ggFVWwOKsmZQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8e8a,2606:4700:3031::6815:4f3c

📝 TXT Records#

4 records 151ms

TXT Record
google-site-verification=kck46_9eNo_S8RNS9L3g3MTrHEvzjfxU8mBAojkpsGg
MS=C65A651133941C159755795D469748C7583E1400
SOA=1701361619
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (kalfri.dk)
~all (soft fail)	v=spf1 include:_spf.google.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 2026-10-21 20:46:02

www	104.21.79.60 172.67.142.138 2606:4700:3030::ac43:8e8a 2606:4700:3031::6815:4f3c (AS13335) (address records, no CNAME)
www vs bare domain	Same network kalfri.dk: 104.21.79.60 172.67.142.138 2606:4700:3030::ac43:8e8a 2606:4700:3031::6815:4f3c (AS13335) www.kalfri.dk: 104.21.79.60 172.67.142.138 2606:4700:3030::ac43:8e8a 2606:4700:3031::6815:4f3c (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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.kalfri.dk	IdJtwUh-Edr02o4IC2hjsR4ccFzcFm5rfCxK0fEjVUo
TXT	_acme-challenge.kalfri.dk	ciTwwA2gxwPNS8dC336H2XEqooEwKD_TlBelgTdne8k

🔗 TLSA / DANE#

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

🔐 DNSSEC#

97ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2413858941
Primary NS (MNAME)	bella.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 02:05:41

Field	Value
Registrar	CURANET A/S
Registered	1999-09-27
Expires	2027-09-30 (340d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
kalundborgfriskole.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

30ms

26ms

28ms

AAAA

31ms

TXT

151ms

CAA

31ms

HTTPS

27ms

TLSA

102ms

SOA

0ms

MTA-STS

50ms

DNSSEC

97ms

SRV

50ms

Total

743ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 20:46:01	2915ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-07 21:49:06	546ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-29 16:48:54	628ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-26 12:09:11	842ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-23 11:22:16	963ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-19 22:04:59	1273ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-03 18:53:23 shown	743ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 23:30:58	1037ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-24 18:08:24	8757ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-23 18:01:12	2123ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-17 14:43:38	1532ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-10 10:19:16	1405ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-26 12:25:38	1367ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-16 21:59:24	17349ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-26 21:54:02	953ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-22 21:31:32	1696ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-21 00:02:48	3112ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 13:43:08	4931ms	2 NS 2 A 5 MX	🔓 Insecure