3aktive.dk

📜 Historical scan 2026-06-19 17:14:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3aktive.dk is a .dk domain served by 2 nameservers (algin.ns.cloudflare.com, ryleigh.ns.cloudflare.com). It was registered on 28 February 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.22.88 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 3 more. The zone is DNSSEC-signed and validates, 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 57ms

Nameserver	IP addresses	PTR	ASN / ISP
algin.ns.cloudflare.com	108.162.193.61 172.64.33.61 173.245.59.61 2606:4700:58::adf5:3b3d 2803:f800:50::6ca2:c13d 2a06:98c1:50::ac40:213d	algin.ns.cloudflare.com algin.ns.cloudflare.com algin.ns.cloudflare.com algin.ns.cloudflare.com algin.ns.cloudflare.com algin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ryleigh.ns.cloudflare.com	108.162.194.198 162.159.38.198 172.64.34.198 2606:4700:50::a29f:26c6 2803:f800:50::6ca2:c2c6 2a06:98c1:50::ac40:22c6	ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.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 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.18.22.88	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.18.23.88	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records#

5 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
10	300s	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
20	300s	mx3-dk.centerasecurity.dk	128.76.60.187 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
99	300s	eu-esec-01.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
100	300s	eu-esec-02.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.178.248

🔷 AAAA Records (IPv6)#

2 records 58ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700::6812:1658	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700::6812:1758	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.18.22.88,104.18.23.88 ipv6hint=2606:4700::6812:1658,2606:4700::6812:1758

📝 TXT Records#

7 records 260ms

TXT Record
apple-domain-verification=iwMbWsycKXeByUFS
google-site-verification=Vv4imWy_VZNJyam5BTGx8l8u56rCUZa_qnc1UX21MAI
klaviyo-site-verification=TF6c5Z
knowbe4-site-verification=61c1898e9ef26404605fa689f7ae935e
MS=ms96830883
openai-domain-verification=dv-Vs7JeIg8qYy9BiSg9QCrWWpA
v=spf1 include:_spf13910.spfprotect.com -all

✉️ SPF#

Policy	Record (3aktive.dk)
-all (hard fail)	v=spf1 include:_spf13910.spfprotect.com -all

📨 DMARC#

Policy	Record (_dmarc.3aktive.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:611e7677625a7@dmarc.centerasecurity.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 2026-10-13 11:20:49

www	104.18.22.88 104.18.23.88 2606:4700::6812:1658 2606:4700::6812:1758 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 3aktive.dk: 104.18.22.88 104.18.23.88 2606:4700::6812:1658 2606:4700::6812:1758 (AS13335) www.3aktive.dk: 104.18.22.88 104.18.23.88 2606:4700::6812:1658 2606:4700::6812:1758 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u276253.wl004.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u276253.wl004.sendgrid.net	RSA · ~1024 bit below 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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

8 records 216ms

Service / Owner	Type	Cert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…

🔐 DNSSEC#

173ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

46ms

Field	Value
Serial	2406978539
Primary NS (MNAME)	algin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 11:42:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-02-28
Expires	2027-02-28 (132d)

🔗 Same registrant#

11 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).

Domain	Registrar
3aktiv.dk	Punktum dk A/S (direct)
c-r-gruppen.dk	DANDOMAIN A/S
carl-ras-grp.dk	DANDOMAIN A/S
carl-ras.dk	Punktum dk A/S (direct)
carlras.dk	Punktum dk A/S (direct)
cr-sikring.dk	DANDOMAIN A/S
creb.dk	Punktum dk A/S (direct)
engros-beslag.dk	Punktum dk A/S (direct)
engroscentre.dk	Punktum dk A/S (direct)
professionelle-engroscentre.dk	Punktum dk A/S (direct)
strox.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

57ms

48ms

54ms

AAAA

58ms

TXT

260ms

CAA

48ms

HTTPS

51ms

TLSA

216ms

SOA

46ms

MTA-STS

249ms

DNSSEC

173ms

SRV

2083ms

Total

2887ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 11:20:49	2843ms	2 NS 2 A 3 MX	🔒 Secure
2026-10-10 06:18:54	670ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-28 16:43:19	911ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-23 13:49:40	1040ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-26 20:28:08	1101ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-26 13:45:09	2632ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-11 23:37:44	5330ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-03 23:07:40	1352ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-01 14:51:45	17349ms	2 NS 2 A 3 MX	🔒 Secure
2026-07-11 04:22:15	25743ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-19 17:14:06 shown	2887ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-16 12:43:09	1519ms	2 NS 2 A 5 MX	🔒 Secure