a4kalender.dk

📜 Historical scan 2026-07-18 07:36:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a4kalender.dk is a .dk domain served by 2 nameservers (dave.ns.cloudflare.com, marge.ns.cloudflare.com). It was registered on 22 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.114.96.1 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a 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 70ms

Nameserver	IP addresses	PTR	ASN / ISP
dave.ns.cloudflare.com	108.162.193.109 172.64.33.109 173.245.59.109 2606:4700:58::adf5:3b6d 2803:f800:50::6ca2:c16d 2a06:98c1:50::ac40:216d	dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
marge.ns.cloudflare.com	108.162.192.191 172.64.32.191 173.245.58.191 2606:4700:50::adf5:3abf 2803:f800:50::6ca2:c0bf 2a06:98c1:50::ac40:20bf	marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.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 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 55ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 78ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.34.125,172.67.205.14 ech=AEX+DQBBcAAgACCpZ6/Y3hJQqAm4mQ+vtmJrFW2uw9suG0VI8rLmiqhFdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:cd0e,2606:4700:3036::6815:227d

📝 TXT Records#

1 records 196ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (a4kalender.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.a4kalender.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:martin@flexnet.dk

📬 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 2026-10-10 18:17:23

www	104.21.34.125 172.67.205.14 2606:4700:3032::ac43:cd0e 2606:4700:3036::6815:227d (AS13335) (address records, no CNAME)
www vs bare domain	Same network a4kalender.dk: 104.21.34.125 172.67.205.14 2606:4700:3032::ac43:cd0e 2606:4700:3036::6815:227d (AS13335) www.a4kalender.dk: 104.21.34.125 172.67.205.14 2606:4700:3032::ac43:cd0e 2606:4700:3036::6815:227d (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

205ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2409762123
Primary NS (MNAME)	dave.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 18:45:22

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-03-22
Expires	2027-03-21 (155d)

📋 WHOIS#

⏱️ Lookup Timing#

70ms

60ms

58ms

AAAA

55ms

TXT

196ms

CAA

61ms

HTTPS

78ms

TLSA

101ms

SOA

0ms

MTA-STS

90ms

DNSSEC

205ms

SRV

87ms

Total

1478ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 18:17:23	1126ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 05:26:42	891ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-16 04:11:46	1236ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-12 10:08:48	1053ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-12 20:57:52	8890ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-19 11:24:47	1574ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-18 07:36:06 shown	1478ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-02 01:26:32	697ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 12:54:32	1196ms	2 NS 2 A 0 MX	🔓 Insecure