rundstykke.dk

📜 Historical scan 2026-06-25 10:32:38  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rundstykke.dk is a .dk domain served by 2 nameservers (aspen.ns.cloudflare.com, venkat.ns.cloudflare.com). It was registered on 20 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.79.127 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.rundstykke.dk. 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   36ms
NameserverIP addressesPTRASN / ISP
aspen.ns.cloudflare.com 108.162.194.109
162.159.38.109
172.64.34.109
2606:4700:50::a29f:266d
2803:f800:50::6ca2:c26d
2a06:98c1:50::ac40:226d		 aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
venkat.ns.cloudflare.com 108.162.195.254
162.159.44.254
172.64.35.254
2606:4700:58::a29f:2cfe
2803:f800:50::6ca2:c3fe
2a06:98c1:50::ac40:23fe		 venkat.ns.cloudflare.com
venkat.ns.cloudflare.com
venkat.ns.cloudflare.com
venkat.ns.cloudflare.com
venkat.ns.cloudflare.com
venkat.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   41ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.79.127 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.145.173 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.rundstykke.dk 62.66.181.231 062066181231.static.telenor.dk AS9158 Telenor A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverwebmail.karsoe.dk → 104.21.11.141
🔶 Autoconfigwebmail.karsoe.dk → 172.67.166.39

🔷 AAAA Records (IPv6)#

2 records   37ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3034::6815:4f7f 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3035::ac43:91ad 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   37ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.79.127,172.67.145.173 ech=AEX+DQBBiAAgACBwbx4SwxktTDRrMnb/gaZ3f4rxQ+DXlawREe9O03hYMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:4f7f,2606:4700:3035::ac43:91ad

🔌 SRV Records#

3 records   72ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 1 443 webmail.karsoe.dk
_imap._tcp 20 1 143 webmail.karsoe.dk
_imaps._tcp 10 1 993 webmail.karsoe.dk

📝 TXT Records#

1 records   163ms
TXT Record
v=spf1 mx a:webmail.karsoe.dk ip4:62.66.181.231 -all

✉️ SPF#

PolicyRecord (rundstykke.dk)
-all (hard fail) v=spf1 mx a:webmail.karsoe.dk ip4:62.66.181.231 -all

📨 DMARC#

PolicyRecord (_dmarc.rundstykke.dk)
p=quarantine v=DMARC1; p=quarantine; adkim=s; aspf=s; rua=mailto:postmaster@rundstykke.dk; ruf=mailto:postmaster@rundstykke.dk; fo=1

📬 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 12:04:53
www104.21.79.127 172.67.145.173 2606:4700:3030::ac43:91ad 2606:4700:3035::6815:4f7f (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

✍️ DKIM keys#

1 found
SelectorCNAMEKey
dkim — 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: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.rundstykke.dk V4URULjRGkRdmpz9uWtGIVo0wJYBeHqL_weiAV6Ff5E
TXT _acme-challenge.rundstykke.dk f3z6CcT36iXmqM2exIIr7ZbmufbTJtP2sf7EdIm9LCc

🔗 TLSA / DANE#

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

🔐 DNSSEC#

101ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2407676790
Primary NS (MNAME)aspen.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-16 05:53:36
FieldValue
RegistrarSimply.com A/S
Registered2026-03-20
Expires2027-03-19 (148d)

🔗 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
matsjov.dkPunktum dk A/S (direct)
udvikling-vaekst.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
36ms
A
41ms
MX
44ms
AAAA
37ms
TXT
163ms
CAA
37ms
HTTPS
37ms
TLSA
63ms
SOA
0ms
MTA-STS
39ms
DNSSEC
101ms
SRV
72ms
Total
816ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-05 07:35:28 588ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-03 07:30:00 759ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-29 06:59:16 967ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-27 06:00:32 758ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-25 16:23:03 1524ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-24 16:08:31 845ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-20 07:46:14 840ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-17 00:55:20 2087ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-09 23:43:07 10114ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-06 15:59:47 962ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 13:47:05 663ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-17 04:47:49 1176ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-27 13:29:24 2148ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-26 14:50:15 942ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-25 10:32:38 shown 816ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-21 16:36:08 1134ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-18 08:05:02 1280ms 2 NS 2 A 1 MX 🔓 Insecure
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