fessorsforum.dk

📜 Historical scan 2026-09-18 01:38:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fessorsforum.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It was registered on 27 May 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.89.73 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, 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 31ms

Nameserver	IP addresses	PTR	ASN / ISP
cortney.ns.cloudflare.com	108.162.192.87 172.64.32.87 173.245.58.87 2606:4700:50::adf5:3a57 2803:f800:50::6ca2:c057 2a06:98c1:50::ac40:2057	cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
eric.ns.cloudflare.com	108.162.193.112 172.64.33.112 173.245.59.112 2606:4700:58::adf5:3b70 2803:f800:50::6ca2:c170 2a06:98c1:50::ac40:2170	eric.ns.cloudflare.com eric.ns.cloudflare.com eric.ns.cloudflare.com eric.ns.cloudflare.com eric.ns.cloudflare.com eric.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 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.89.73	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.156.243	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	173.194.222.26 2a00:1450:4010:c01::1b 2a00:1450:4010:c01::1b	lo-in-f26.1e100.net lh-in-x1b.1e100.net lh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	aspmx2.googlemail.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:9cf3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5949	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.89.73,172.67.156.243 ech=AEX+DQBBQgAgACCDl+LsM60HEpQEV+BfTzxhjthggCDFnKiFinIm01m4DgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:9cf3,2606:4700:3036::6815:5949

📝 TXT Records#

1 records 164ms

TXT Record
google-site-verification=4V3lJUUbp250kM9S7kkV2BJ-nIJJLhJdjEbKHHsNIJo

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-08 23:05:36

www	104.21.89.73 172.67.156.243 2606:4700:3031::ac43:9cf3 2606:4700:3036::6815:5949 (AS13335) (address records, no CNAME)
www vs bare domain	Same network fessorsforum.dk: 104.21.89.73 172.67.156.243 2606:4700:3031::ac43:9cf3 2606:4700:3036::6815:5949 (AS13335) www.fessorsforum.dk: 104.21.89.73 172.67.156.243 2606:4700:3031::ac43:9cf3 2606:4700:3036::6815:5949 (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.fessorsforum.dk	GGzTnv7kLIxyG_9j6eob1_eBjjHpMU3G2ymBgu64EkY
TXT	_acme-challenge.fessorsforum.dk	tUGTWN3mJwNqU8mv0DUSNDvxWqfaUJ-cIVSMzmE7Kjk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

118ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415055648
Primary NS (MNAME)	cortney.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 09:54:17

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-05-27
Expires	2027-05-31 (224d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

40ms

AAAA

42ms

TXT

164ms

CAA

27ms

HTTPS

34ms

TLSA

255ms

SOA

0ms

MTA-STS

52ms

DNSSEC

118ms

SRV

55ms

Total

2293ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 18:57:49	1273ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-22 12:22:49	1009ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-18 01:38:39 shown	2293ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 09:50:35	2707ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-30 00:19:42	10374ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-20 08:38:33	3295ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 10:17:08	3794ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 10:15:24	1335ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 10:11:18	5844ms	2 NS 2 A 5 MX	🔓 Insecure