h2odense.dk

📜 Historical scan 2026-08-26 18:10:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

h2odense.dk is a .dk domain served by 2 nameservers (duke.ns.cloudflare.com, kiki.ns.cloudflare.com). It was registered on 1 November 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.33.36 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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 25ms

Nameserver	IP addresses	PTR	ASN / ISP
duke.ns.cloudflare.com	108.162.193.110 172.64.33.110 173.245.59.110 2606:4700:58::adf5:3b6e 2803:f800:50::6ca2:c16e 2a06:98c1:50::ac40:216e	duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kiki.ns.cloudflare.com	108.162.192.180 172.64.32.180 173.245.58.180 2606:4700:50::adf5:3ab4 2803:f800:50::6ca2:c0b4 2a06:98c1:50::ac40:20b4	kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.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 25ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.33.36	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.158.130	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	300s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

2 records 27ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:2124	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:9e82	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 23ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.33.36,172.67.158.130 ech=AEX+DQBBKgAgACAvQqH0GYmbu3KvoVqKt+Ei4tgB0R7OrKySEEIuEA2POgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2124,2606:4700:3037::ac43:9e82

📝 TXT Records#

3 records 132ms

TXT Record
facebook-domain-verification=5dugaw49kn3z4avj6n12cp9xbgcd0r
google-site-verification=S3P86rh0H5sAkMbq0l72xPKbdPPryzoA76zrXLbQqKY
v=spf1 include:spf.onlinemail.io ?all

✉️ SPF#

Policy	Record (h2odense.dk)
?all (neutral)	v=spf1 include:spf.onlinemail.io ?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 2026-10-22 18:45:55

www	104.21.33.36 172.67.158.130 2606:4700:3031::6815:2124 2606:4700:3037::ac43:9e82 (AS13335) (address records, no CNAME)
www vs bare domain	Same network h2odense.dk: 104.21.33.36 172.67.158.130 2606:4700:3031::6815:2124 2606:4700:3037::ac43:9e82 (AS13335) www.h2odense.dk: 104.21.33.36 172.67.158.130 2606:4700:3031::6815:2124 2606:4700:3037::ac43:9e82 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.h2odense.dk	ccg3Ow1ZYOqpOYIwwJc8AMCpbTgljMsRQnyNeq7vNFg
TXT	_acme-challenge.h2odense.dk	rpuKMZ1fL2gFfjVwOMucCqs368UKKYEGonvk2fY6Gdc

🔗 TLSA / DANE#

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

🔐 DNSSEC#

96ms

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	2413154001
Primary NS (MNAME)	duke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-22 18:57:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-11-01
Expires	2026-11-30 (37d)

🔗 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#

25ms

32ms

AAAA

27ms

TXT

132ms

CAA

22ms

HTTPS

23ms

TLSA

45ms

SOA

0ms

MTA-STS

40ms

DNSSEC

96ms

SRV

46ms

Total

554ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 18:45:55	580ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-03 21:26:01	496ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-08 02:52:43	621ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 19:13:12	547ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 18:10:05 shown	554ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-23 11:15:00	3523ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-03 00:18:16	2824ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-25 13:32:33	767ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 10:00:41	5103ms	2 NS 2 A 2 MX	🔓 Insecure