virksomhedsteori.dk

📜 Historical scan 2026-07-15 16:47:52  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

virksomhedsteori.dk is a .dk domain served by 2 nameservers (ray.ns.cloudflare.com, sue.ns.cloudflare.com). It was registered on 6 November 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.7.236 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.virksomhedsteori.dk. The zone is DNSSEC-signed and validates, 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   115ms
NameserverIP addressesPTRASN / ISP
ray.ns.cloudflare.com 108.162.193.138
172.64.33.138
173.245.59.138
2606:4700:58::adf5:3b8a
2803:f800:50::6ca2:c18a
2a06:98c1:50::ac40:218a		 ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
sue.ns.cloudflare.com 108.162.192.145
172.64.32.145
173.245.58.145
2606:4700:50::adf5:3a91
2803:f800:50::6ca2:c091
2a06:98c1:50::ac40:2091		 sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.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   103ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.7.236 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.156.137 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   133ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mail.virksomhedsteori.dk 107.6.136.42 amsr201.websitehostserver.net AS32475 Internap Holding LLC

🔷 AAAA Records (IPv6)#

2 records   122ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3034::6815:7ec 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::ac43:9c89 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   143ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.7.236,172.67.156.137 ech=AEX+DQBBUwAgACAQTuCqiR4gv3XoBAz5xX89BExJt6BFKV1EnYi63BwqeQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:7ec,2606:4700:3036::ac43:9c89

📝 TXT Records#

1 records   420ms
TXT Record
v=spf1 a mx include:servers.mcsv.net ip4:107.6.136.42 ?all

✉️ SPF#

PolicyRecord (virksomhedsteori.dk)
?all (neutral) v=spf1 a mx include:servers.mcsv.net ip4:107.6.136.42 ?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 2026-10-17 02:33:25
www104.21.7.236 172.67.156.137 2606:4700:3034::6815:7ec 2606:4700:3036::ac43:9c89 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — 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: 3/10 · policy: ?all

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

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.virksomhedsteori.dk n-kKJFhQBVcE5vk79Lg1yvqUcPlSDcr88WGw4sh8i2U
TXT _acme-challenge.virksomhedsteori.dk ymhu9Ko54LUnI86jAPkpCidHsoA0qKHXv4juFNasJ14

🔗 TLSA / DANE#

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

🔐 DNSSEC#

167ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2409141576
Primary NS (MNAME)ray.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-14 21:48:35
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2011-11-06
Expires2027-04-30 (184d)

🔗 Same registrant#

31 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
alfa-nova.dkPunktum dk A/S (direct)
alfanova.dkPunktum dk A/S (direct)
aroslejren.dkPunktum dk A/S (direct)
bygbaeredygtigt.dkPunktum dk A/S (direct)
christiandamsgaard.dkPunktum dk A/S (direct)
damsgaard-bruhn.dkPunktum dk A/S (direct)
detsidsteord.dkPunktum dk A/S (direct)
dinudstillerguide.dkPunktum dk A/S (direct)
gymdrama.dkPunktum dk A/S (direct)
haglundphoto.dkPunktum dk A/S (direct)
i-stødet.dknordicway ApS
johnnysjokes.dkPunktum dk A/S (direct)
kaloeviggruppe.dkPunktum dk A/S (direct)
kaløviggruppe.dkPunktum dk A/S (direct)
kirstenbank.dkPunktum dk A/S (direct)
klausbaerentsen.dkPunktum dk A/S (direct)
leneabildgaardknudsen.dkPunktum dk A/S (direct)
mercy-scouts.dkPunktum dk A/S (direct)
pihlmark.dkPunktum dk A/S (direct)
plante-magi.dkPunktum dk A/S (direct)
plantemagi.dkPunktum dk A/S (direct)
poguemahone.dkPunktum dk A/S (direct)
retrospective.dkPunktum dk A/S (direct)
retrospectives.dkPunktum dk A/S (direct)
scrumstuff.dkPunktum dk A/S (direct)
tofthamming.dkPunktum dk A/S (direct)
udstilleradmin.dkPunktum dk A/S (direct)
udstillerdatabase.dkPunktum dk A/S (direct)
udstillerdemo.dkPunktum dk A/S (direct)
udstillerguide.dkPunktum dk A/S (direct)
udstillerguiden.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
115ms
A
103ms
MX
133ms
AAAA
122ms
TXT
420ms
CAA
109ms
HTTPS
143ms
TLSA
1145ms
SOA
0ms
MTA-STS
112ms
DNSSEC
167ms
SRV
164ms
Total
2608ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-17 02:33:25 1108ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-16 02:32:07 2143ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-14 21:18:36 2579ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-09 10:35:23 1284ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-05 06:29:33 1405ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-30 05:56:17 1060ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-30 00:15:27 920ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-29 00:01:32 1025ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-22 20:16:22 950ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-28 02:24:23 1090ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-25 22:50:25 955ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-08 01:53:09 1817ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-31 19:03:35 1156ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-15 16:47:52 shown 2608ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-25 19:50:42 2621ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-20 04:46:29 2679ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-19 05:31:18 7582ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-18 06:50:03 1650ms 2 NS 2 A 1 MX 🔒 Secure
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