htf.dk

📜 Historical scan 2026-08-24 09:57:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

htf.dk is a .dk domain served by 2 nameservers (diva.ns.cloudflare.com, joel.ns.cloudflare.com). It was registered on 17 December 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.14.169 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by htf-dk.mail.protection.outlook.com. 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 60ms

Nameserver	IP addresses	PTR	ASN / ISP
diva.ns.cloudflare.com	108.162.192.97 172.64.32.97 173.245.58.97 2606:4700:50::adf5:3a61 2803:f800:50::6ca2:c061 2a06:98c1:50::ac40:2061	diva.ns.cloudflare.com diva.ns.cloudflare.com diva.ns.cloudflare.com diva.ns.cloudflare.com diva.ns.cloudflare.com diva.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
joel.ns.cloudflare.com	108.162.193.184 172.64.33.184 173.245.59.184 2606:4700:58::adf5:3bb8 2803:f800:50::6ca2:c1b8 2a06:98c1:50::ac40:21b8	joel.ns.cloudflare.com joel.ns.cloudflare.com joel.ns.cloudflare.com joel.ns.cloudflare.com joel.ns.cloudflare.com joel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

3 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.14.169	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.15.169	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.71.200	300s	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records#

1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	htf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::6 2a01:111:f403:ca09::6 2a01:111:f403:ca09::9 52.101.68.36 52.101.73.16 52.101.73.22 52.101.73.6	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.98.16.95

🔷 AAAA Records (IPv6)#

3 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:ea9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::681a:fa9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::ac43:47c8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.26.14.169,104.26.15.169,172.67.71.200 ipv6hint=2606:4700:20::681a:ea9,2606:4700:20::681a:fa9,2606:4700:20::ac43:47c8

🔌 SRV Records#

1 records 144ms

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

📝 TXT Records#

6 records 216ms

TXT Record
_1j1vqdphe4yrd8l3fj8f7q8iu641fsj
anthropic-domain-verification-r01nt1=6FzGoV8yOtXQDoR0IgP8SRbke
MS=AD3151E57175453F80374A312BCB144AE17338F7
MS=ms67303896
v=spf1 ip4:178.20.217.247 include:spf.curanet.dk include:spf.protection.outlook.com -all
yShBGQogLhiMRVkhJAqnnVvUxrqw/XLFaN7fddnesmJueEbRbON7mEaF/Lyb9c88V0cgeqBDmFmDpfTUJypdvw==

✉️ SPF#

Policy	Record (htf.dk)
-all (hard fail)	v=spf1 ip4:178.20.217.247 include:spf.curanet.dk include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.htf.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=s; aspf=s;

📬 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 2026-10-11 21:40:45

www	104.26.14.169 104.26.15.169 172.67.71.200 2606:4700:20::681a:ea9 2606:4700:20::681a:fa9 2606:4700:20::ac43:47c8 (AS13335) (address records, no CNAME)
www vs bare domain	Same network htf.dk: 104.26.14.169 104.26.15.169 172.67.71.200 2606:4700:20::681a:ea9 (AS13335) www.htf.dk: 104.26.14.169 104.26.15.169 172.67.71.200 2606:4700:20::681a:ea9 (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

✍️ DKIM keys#

3 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
selector1	selector1-htf-dk._domainkey.htfa.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-htf-dk._domainkey.htfa.onmicrosoft.com	RSA · ~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: 4/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.htf.dk	E6zLwfUKe-ruqKUeHbXSo3EZ8Hc1DCZjzSingWFfkQI
TXT	_acme-challenge.htf.dk	Gju7TJnxp8M3lj0yqwUD7ofE8qv25juaisWmBr6ZaCM
TXT	_acme-challenge.htf.dk	WlIyIHKnJV93t8FlNg3Y6jMDvbF6Byg3LmO_vFOOJVY
TXT	_acme-challenge.htf.dk	cTfum0z8RJr5DuHDXgxTQ0-eY_BTzZAat-VpPVDvsMI

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2089ms

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	2412978830
Primary NS (MNAME)	diva.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 15:39:30

Field	Value
Registrar	A/S SCANNET
Registered	1998-12-17
Expires	2026-12-31 (74d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

60ms

56ms

48ms

AAAA

47ms

TXT

216ms

CAA

41ms

HTTPS

37ms

TLSA

216ms

SOA

0ms

MTA-STS

87ms

DNSSEC

2089ms

SRV

144ms

Total

4093ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 02:55:57	1342ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-26 22:01:03	10225ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-21 09:24:03	1880ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-14 08:20:25	2201ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-12 05:09:33	945ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-10 18:12:20	1086ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-06 19:21:54	1969ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-27 20:37:34	1395ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-26 17:27:35	1873ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-24 09:57:03 shown	4093ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-19 19:29:55	10522ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-09 07:22:54	2038ms	2 NS 3 A 1 MX	🔓 Insecure
2026-07-26 14:19:14	3832ms	2 NS 3 A 1 MX	🔓 Insecure
2026-07-20 23:09:24	2366ms	2 NS 3 A 1 MX	🔓 Insecure
2026-07-03 18:39:58	1398ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-26 05:57:00	6297ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-23 20:23:06	1172ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 11:39:43	1550ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-21 04:48:40	1191ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-17 15:04:47	316ms	0 NS 0 A 0 MX	❓ Unknown