peterknudsen.dk

📜 Historical scan 2026-09-06 16:47:35 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

peterknudsen.dk is a .dk domain served by 2 nameservers (eva.ns.cloudflare.com, todd.ns.cloudflare.com). It was registered on 22 February 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.108 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.peterknudsen.dk. 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 74ms

Nameserver	IP addresses	PTR	ASN / ISP
eva.ns.cloudflare.com	108.162.192.114 172.64.32.114 173.245.58.114 2606:4700:50::adf5:3a72 2803:f800:50::6ca2:c072 2a06:98c1:50::ac40:2072	eva.ns.cloudflare.com eva.ns.cloudflare.com eva.ns.cloudflare.com eva.ns.cloudflare.com eva.ns.cloudflare.com eva.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
todd.ns.cloudflare.com	108.162.193.146 172.64.33.146 173.245.59.146 2606:4700:58::adf5:3b92 2803:f800:50::6ca2:c192 2a06:98c1:50::ac40:2192	todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.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 57ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.55.108	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.171.26	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.peterknudsen.dk	95.211.183.135	cp15-nl.temok.com	AS60781 LeaseWeb Netherlands B.V.

🔷 AAAA Records (IPv6)#

2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:ab1a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:376c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 60ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.55.108,172.67.171.26 ech=AEX+DQBBSgAgACAd2EbW6MxMJHoA7F0uflVYkHXkJ4PWgGkGhetoJ8+PFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:ab1a,2606:4700:3037::6815:376c

📝 TXT Records#

1 records 226ms

TXT Record
v=spf1 include:spf.sendinblue.com include:peterknudsen.dk mx ~all

✉️ SPF#

Policy	Record (peterknudsen.dk)
~all (soft fail)	v=spf1 include:spf.sendinblue.com include:peterknudsen.dk mx ~all

📨 DMARC#

Policy	Record (_dmarc.peterknudsen.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; rua=mailto:dmarc@mailinblue.com!10m; ruf=mailto:dmarc@mailinblue.com!10m; 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#

latest probe, not this scan · checked 2026-10-09 19:13:20

www	104.21.55.108 172.67.171.26 2606:4700:3030::ac43:ab1a 2606:4700:3037::6815:376c (AS13335) (address records, no CNAME)
www vs bare domain	Same network peterknudsen.dk: 104.21.55.108 172.67.171.26 2606:4700:3030::ac43:ab1a 2606:4700:3037::6815:376c (AS13335) www.peterknudsen.dk: 104.21.55.108 172.67.171.26 2606:4700:3030::ac43:ab1a 2606:4700:3037::6815:376c (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	RSA · ~1024 bit below 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: 6/10 · policy: ~all

error include:peterknudsen.dk includes itself (directly or via another include): receivers return permerror

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.peterknudsen.dk	-AhadpxuVBz5cnXeoEWTPoySSwfw5qGTjEg-Op_HR7s
TXT	_acme-challenge.peterknudsen.dk	bu5Olfyu-AQy6UJgJBmmLlgpCtxojwL4rzCIPiyBbRQ

🔗 TLSA / DANE#

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

🔐 DNSSEC#

152ms

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	2414119194
Primary NS (MNAME)	eva.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 19:27:52

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-02-22
Expires	2027-03-31 (163d)

📋 WHOIS#

⏱️ Lookup Timing#

74ms

57ms

52ms

AAAA

53ms

TXT

226ms

CAA

50ms

HTTPS

60ms

TLSA

117ms

SOA

0ms

MTA-STS

93ms

DNSSEC

152ms

SRV

124ms

Total

1268ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 19:13:20	758ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-03 10:34:20	2004ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 09:34:33	9561ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-18 06:33:12	854ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 10:48:58	1194ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-06 16:47:35 shown	1268ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 08:40:30	976ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-23 06:59:48	1156ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 17:35:07	1905ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-31 12:50:15	1658ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-06 05:14:51	3467ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 12:07:50	978ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 11:49:09	1175ms	2 NS 2 A 1 MX	⚠️ Bogus