ef.dk

📜 Historical scan 2026-10-12 05:49:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ef.dk is a .dk domain served by 2 nameservers (clark.ns.cloudflare.com, dorthy.ns.cloudflare.com). It was registered on 30 May 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.199.108.153 is hosted by Fastly, Inc. (AS54113) in United States. Mail is handled by ef-dk.mail.protection.outlook.com. 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
clark.ns.cloudflare.com	108.162.193.87 172.64.33.87 173.245.59.87 2606:4700:58::adf5:3b57 2803:f800:50::6ca2:c157 2a06:98c1:50::ac40:2157	clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com clark.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dorthy.ns.cloudflare.com	108.162.192.249 172.64.32.249 173.245.58.249 2606:4700:50::adf5:3af9 2803:f800:50::6ca2:c0f9 2a06:98c1:50::ac40:20f9	dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

4 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.199.108.153	300s	cdn-185-199-108-153.github.com	AS54113	Fastly, Inc.	185.199.108.0/22	🇺🇸 United States	—
185.199.109.153	300s	cdn-185-199-109-153.github.com	AS54113	Fastly, Inc.	185.199.108.0/22	🇺🇸 United States	—
185.199.110.153	300s	cdn-185-199-110-153.github.com	AS54113	Fastly, Inc.	185.199.108.0/22	🇺🇸 United States	—
185.199.111.153	300s	cdn-185-199-111-153.github.com	AS54113	Fastly, Inc.	185.199.108.0/22	🇺🇸 United States	—

📧 MX Records#

1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	ef-dk.mail.protection.outlook.com	—	—	—

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)#

4 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:50c0:8000::153	300s	—	AS54113	Fastly, Inc.	2606:50c0:8000:0:0:0:0:0/46	🇺🇸 United States	—
2606:50c0:8001::153	300s	—	AS54113	Fastly, Inc.	2606:50c0:8000:0:0:0:0:0/46	🇺🇸 United States	—
2606:50c0:8002::153	300s	—	AS54113	Fastly, Inc.	2606:50c0:8000:0:0:0:0:0/46	🇺🇸 United States	—
2606:50c0:8003::153	300s	—	AS54113	Fastly, Inc.	2606:50c0:8000:0:0:0:0:0/46	🇺🇸 United States	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 160ms

TXT Record
c4BUEVA
MS=ms13392263
v=spf1 include:spf.protection.outlook.com ip4:194.239.23.250/32 a:massmail.scannet.dk -all

✉️ SPF#

Policy	Record (ef.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:194.239.23.250/32 a:massmail.scannet.dk -all

📨 DMARC#

Policy	Record (_dmarc.ef.dk)
p=none (monitor only)	v=DMARC1; p=none; aspf=s; pct=100;

📬 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 2026-10-16 14:37:52

www CNAME	praxisdigital.github.io (all on github.io) → 185.199.108.153 185.199.109.153 185.199.110.153 185.199.111.153 2606:50c0:8000::153 2606:50c0:8001::153 2606:50c0:8002::153 2606:50c0:8003::153 (AS54113)
www vs bare domain	Same network ef.dk: 185.199.108.153 185.199.109.153 185.199.110.153 185.199.111.153 (AS54113) www.ef.dk: 185.199.108.153 185.199.109.153 185.199.110.153 185.199.111.153 (AS54113)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-ef-dk._domainkey.praxis673.onmicrosoft.com	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: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.ef.dk	2xoL36uCHavR96q8RLwWtlapSit8ioQsqJTy5Nl10lA
TXT	_acme-challenge.ef.dk	8ASO0hWSb6pWXT87X0aWsvstcWxk04YWVPKNvF6xRk8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

62ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

22ms

Field	Value
Serial	2417216331
Primary NS (MNAME)	clark.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 06:14:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1996-05-30
Expires	2027-06-30 (256d)

🔗 Same registrant#

10 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
alfabetadigital.dk	Punktum dk A/S (direct)
efdigital.dk	Punktum dk A/S (direct)
es-c.dk	Punktum dk A/S (direct)
fagpakke.dk	Punktum dk A/S (direct)
fagteori.dk	Punktum dk A/S (direct)
praxis-forlaget.dk	Punktum dk A/S (direct)
praxis-shop.dk	Punktum dk A/S (direct)
praxis.dk	Punktum dk A/S (direct)
prx.dk	Punktum dk A/S (direct)
undervisningsbanken.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

38ms

30ms

AAAA

47ms

TXT

160ms

CAA

35ms

HTTPS

41ms

TLSA

921ms

SOA

22ms

MTA-STS

62ms

DNSSEC

62ms

SRV

106ms

Total

1348ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 14:37:52	2084ms	2 NS 4 A 1 MX	🔓 Insecure
2026-10-12 05:49:58 shown	1348ms	2 NS 4 A 1 MX	🔓 Insecure
2026-09-24 20:08:58	783ms	2 NS 4 A 1 MX	🔓 Insecure
2026-09-08 12:35:28	1177ms	2 NS 4 A 1 MX	🔓 Insecure
2026-08-14 07:45:55	1564ms	2 NS 4 A 1 MX	🔓 Insecure
2026-08-13 07:13:39	1447ms	2 NS 4 A 1 MX	🔓 Insecure
2026-07-06 23:58:36	1294ms	2 NS 4 A 1 MX	🔓 Insecure
2026-06-25 10:46:27	873ms	2 NS 4 A 1 MX	🔓 Insecure
2026-06-20 18:39:20	1465ms	2 NS 4 A 1 MX	🔓 Insecure
2026-06-17 06:18:49	21014ms	2 NS 4 A 1 MX	🔓 Insecure
2026-06-17 06:08:33	2027ms	2 NS 4 A 1 MX	🔓 Insecure
2026-06-17 06:02:04	485ms	2 NS 4 A 1 MX	🔓 Insecure
2026-06-17 06:00:31	725ms	2 NS 4 A 1 MX	🔓 Insecure