altk.dk

📜 Historical scan 2026-08-10 02:46:42  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

altk.dk is a .dk domain served by 2 nameservers (harlan.ns.cloudflare.com, nancy.ns.cloudflare.com). It was registered on 7 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.45.183 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 more. 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   170ms
NameserverIP addressesPTRASN / ISP
harlan.ns.cloudflare.com 108.162.195.250
162.159.44.250
172.64.35.250
2606:4700:58::a29f:2cfa
2803:f800:50::6ca2:c3fa
2a06:98c1:50::ac40:23fa		 harlan.ns.cloudflare.com
harlan.ns.cloudflare.com
harlan.ns.cloudflare.com
harlan.ns.cloudflare.com
harlan.ns.cloudflare.com
harlan.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
nancy.ns.cloudflare.com 108.162.194.84
162.159.38.84
172.64.34.84
2606:4700:50::a29f:2654
2803:f800:50::6ca2:c254
2a06:98c1:50::ac40:2254		 nancy.ns.cloudflare.com
nancy.ns.cloudflare.com
nancy.ns.cloudflare.com
nancy.ns.cloudflare.com
nancy.ns.cloudflare.com
nancy.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   209ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.45.183 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.218.29 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

4 records   159ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx4.spamfri.dk 193.200.91.108
2001:67c:564:fffd::4001		 mx4.spamfri.dk
mx4.spamfri.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
20 300s mx2.spamfri.dk 193.200.91.109
2001:67c:564:fffd::2001		 mx2.spamfri.dk
mx2.spamfri.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS
30 300s mx3.spamfri.dk 2a00:1b18:2:3:fe::2
62.69.152.43
62.69.152.43		 mx3.spamfri.dk
43.34-46.152.69.62.in-addr.arpa
mx3.spamfri.dk		 AS47527 DLX A/S
AS47527 DLX A/S
AS47527 DLX A/S
40 300s mx1.spamfri.dk 195.242.131.16
2001:67c:564:fffd::1001		 mx1.spamfri.dk
mx1.spamfri.dk		 AS62121 Christian Ebsen ApS
AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover193.200.90.102
🔶 Autoconfig193.200.90.102

🔷 AAAA Records (IPv6)#

2 records   201ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3037::6815:2db7 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:da1d 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   197ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.45.183,172.67.218.29 ech=AEX+DQBBTQAgACCOdlwQ0kb9+hzcjrjAwCQJyUzs85pv9vqJCSiNy/LRMAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:2db7,2606:4700:3037::ac43:da1d

🔌 SRV Records#

1 records   265ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 cpanelemaildiscovery.cpanel.net

📝 TXT Records#

2 records   690ms
TXT Record
brevo-code:62d8625b4c3bbc38e01ed15cd9276849
v=spf1 +a +mx +ip4:193.200.90.102 include:_spf.e-studio.dk ~all

✉️ SPF#

PolicyRecord (altk.dk)
~all (soft fail) v=spf1 +a +mx +ip4:193.200.90.102 include:_spf.e-studio.dk ~all

📨 DMARC#

PolicyRecord (_dmarc.altk.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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 2026-10-08 16:51:55
www104.21.45.183 172.67.218.29 2606:4700:3037::6815:2db7 2606:4700:3037::ac43:da1d (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — RSA Invalid key data — receivers can't verify signatures

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: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   349ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.spamfri.dk DANE-EE · SPKI · SHA-256 884451547A03D0AC2F628D943839BAA6…
SMTP _25._tcp.mx2.spamfri.dk DANE-EE · SPKI · SHA-256 6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk DANE-EE · SPKI · SHA-256 BBFB0694919290E5BC9D6E2C6F47D846…
SMTP _25._tcp.mx4.spamfri.dk DANE-EE · SPKI · SHA-256 4EE743A99328AEF5142706CA5FD3AD61…

🔐 DNSSEC#

573ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2411765336
Primary NS (MNAME)harlan.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-08 17:01:47
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2026-04-07
Expires2027-04-06 (170d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
170ms
A
209ms
MX
159ms
AAAA
201ms
TXT
690ms
CAA
192ms
HTTPS
197ms
TLSA
349ms
SOA
0ms
MTA-STS
272ms
DNSSEC
573ms
SRV
265ms
Total
4552ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-08 16:51:55 917ms 2 NS 2 A 4 MX 🔓 Insecure
2026-10-02 14:52:19 1031ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-26 11:06:12 3507ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-10 02:46:42 shown 4552ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-05 18:41:04 1915ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-28 04:40:49 2417ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-24 00:11:29 1152ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-20 16:03:26 1432ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-16 12:37:23 973ms 2 NS 2 A 4 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone