debian-linux.dk

📜 Historical scan 2026-08-21 07:18:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

debian-linux.dk is a .dk domain served by 2 nameservers (hera.ns.cloudflare.com, noel.ns.cloudflare.com). It was registered on 8 February 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.71.81 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 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 243ms

Nameserver	IP addresses	PTR	ASN / ISP
hera.ns.cloudflare.com	108.162.192.162 172.64.32.162 173.245.58.162 2606:4700:50::adf5:3aa2 2803:f800:50::6ca2:c0a2 2a06:98c1:50::ac40:20a2	hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
noel.ns.cloudflare.com	108.162.193.216 172.64.33.216 173.245.59.216 2606:4700:58::adf5:3bd8 2803:f800:50::6ca2:c1d8 2a06:98c1:50::ac40:21d8	noel.ns.cloudflare.com noel.ns.cloudflare.com noel.ns.cloudflare.com noel.ns.cloudflare.com noel.ns.cloudflare.com noel.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 273ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.71.81	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.143.248	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 255ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1a	lcfrai-in-f27.1e100.net lcfrai-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	142.250.147.27 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	172.253.152.26 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 223ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:8ff8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::6815:4751	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 129ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.71.81,172.67.143.248 ech=AEX+DQBBCAAgACDb3/WLYUIQLa2YPEQQ27wU3af9e9qm5m4A7B3QpjtaagAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:8ff8,2606:4700:3032::6815:4751

📝 TXT Records#

2 records 794ms

TXT Record
google-site-verification=8k4DNymmyP8jXXIcDVb_GouA5sR1PAXeXmVLKXwckyE
v=spf1 include:aspmx.googlemail.com ~all.

✉️ SPF#

Policy	Record (debian-linux.dk)
no all — incomplete SPF	v=spf1 include:aspmx.googlemail.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 2026-10-20 21:38:41

www	104.21.71.81 172.67.143.248 2606:4700:3031::ac43:8ff8 2606:4700:3032::6815:4751 (AS13335) (address records, no CNAME)
www vs bare domain	Same network debian-linux.dk: 104.21.71.81 172.67.143.248 2606:4700:3031::ac43:8ff8 2606:4700:3032::6815:4751 (AS13335) www.debian-linux.dk: 104.21.71.81 172.67.143.248 2606:4700:3031::ac43:8ff8 2606:4700:3032::6815:4751 (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: 2/10 · policy: none

error Unknown mechanism "~all.": receivers treat the record as a permanent error
warn No "all" and no redirect: mail from unlisted servers gets a neutral result

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.debian-linux.dk	73VGj6pPx_tyoQlCMKeZ6M3inrvJ3muvMlQyzf0luJ4
TXT	_acme-challenge.debian-linux.dk	iqrw17ghfvqeexN5qUpdr6-Gd-Zhtl0NEaPupk91fhA

🔗 TLSA / DANE#

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

🔐 DNSSEC#

436ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2412694730
Primary NS (MNAME)	hera.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 22:03:31

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-02-08
Expires	2027-02-28 (129d)

📋 WHOIS#

⏱️ Lookup Timing#

243ms

273ms

255ms

AAAA

223ms

TXT

794ms

CAA

228ms

HTTPS

129ms

TLSA

476ms

SOA

0ms

MTA-STS

319ms

DNSSEC

436ms

SRV

293ms

Total

8347ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 21:38:41	1679ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-27 00:37:51	892ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-23 23:02:43	891ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-21 23:27:56	784ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-05 10:14:51	2839ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-22 07:25:55	2522ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-21 07:18:28 shown	8347ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-09 15:20:03	2868ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-27 11:51:46	17389ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-26 11:15:39	1978ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-16 17:23:55	1346ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-29 10:17:56	1027ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-24 03:30:50	1080ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-22 10:57:48	1011ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-17 01:25:26	774ms	2 NS 2 A 5 MX	🔒 Secure