heimdall.dk

📜 Historical scan 2026-10-01 08:16:38  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

heimdall.dk is a .dk domain served by 2 nameservers (mary.ns.cloudflare.com, theo.ns.cloudflare.com). It was registered on 17 December 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.135 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by heimdall-dk.mail.protection.outlook.com. 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   31ms
NameserverIP addressesPTRASN / ISP
mary.ns.cloudflare.com 108.162.192.134
172.64.32.134
173.245.58.134
2606:4700:50::adf5:3a86
2803:f800:50::6ca2:c086
2a06:98c1:50::ac40:2086		 mary.ns.cloudflare.com
mary.ns.cloudflare.com
mary.ns.cloudflare.com
mary.ns.cloudflare.com
mary.ns.cloudflare.com
mary.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
theo.ns.cloudflare.com 108.162.193.144
172.64.33.144
173.245.59.144
2606:4700:58::adf5:3b90
2803:f800:50::6ca2:c190
2a06:98c1:50::ac40:2190		 theo.ns.cloudflare.com
theo.ns.cloudflare.com
theo.ns.cloudflare.com
theo.ns.cloudflare.com
theo.ns.cloudflare.com
theo.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   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.15.135 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.162.168 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   36ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s heimdall-dk.mail.protection.outlook.com 2a01:111:f403:ca04::10
2a01:111:f403:ca09::22
2a01:111:f403:ca09::26
2a01:111:f403:ca21::10
52.101.103.39
52.101.185.24
52.101.73.155
52.101.91.159		 mail-dbapr03cu00100.inbound.protection.outlook.com
mail-am7pr02cu00302.inbound.protection.outlook.com
mail-am8pr83cu00106.inbound.protection.outlook.com
mail-matpr05cu00100.inbound.protection.outlook.com
mail-miypr05cu00207.inbound.protection.outlook.com
mail-zrxpr07cu00100.inbound.protection.outlook.com
mail-am7pr02cu00203.inbound.protection.outlook.com
mail-matpr04cu00207.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#

ServiceCNAME / IP
🔷 Autodiscover172.67.162.168

🔷 AAAA Records (IPv6)#

2 records   47ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::ac43:a2a8 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3031::6815:f87 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   41ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.15.135,172.67.162.168 ech=AEX+DQBBIQAgACDepu5XFhjNsTaJykFP5aC6eLhW+KKUXtgKGuWt2c26QgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:a2a8,2606:4700:3031::6815:f87

📝 TXT Records#

2 records   177ms
TXT Record
google-site-verification=x4Zpp5pUQJSXGRPftCkVcvM1RjgIeBFFdQ13FJwmkns
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

PolicyRecord (heimdall.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.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 2026-10-09 11:17:20
www104.21.15.135 172.67.162.168 2606:4700:3030::ac43:a2a8 2606:4700:3031::6815:f87 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

✍️ DKIM keys#

2 found
SelectorCNAMEKey
selector1 selector1-heimdall-dk._domainkey.thomasflarup.onmicrosoft.com RSA · ~1024 bit below 2048 bit
selector2 selector2-heimdall-dk._domainkey.thomasflarup.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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

67ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

42ms
FieldValue
Serial2415988598
Primary NS (MNAME)mary.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-13 19:16:53
FieldValue
RegistrarDANDOMAIN A/S
Registered2019-12-17
Expires2027-07-31 (285d)

🔗 Same registrant#

2 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).

DomainRegistrar
sikkerraad.dkDANDOMAIN A/S
xstatic.dkDANDOMAIN A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
31ms
A
40ms
MX
36ms
AAAA
47ms
TXT
177ms
CAA
37ms
HTTPS
41ms
TLSA
176ms
SOA
42ms
MTA-STS
51ms
DNSSEC
67ms
SRV
57ms
Total
716ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-09 11:17:20 1686ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-01 08:16:38 shown 716ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-30 06:59:47 1246ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-27 13:53:01 1193ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-30 12:23:29 2423ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-17 11:19:39 1620ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-17 11:11:39 1214ms 2 NS 2 A 1 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone