fessorsforum.dk

📜 Historical scan 2026-06-17 10:17:08 · ← 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 86ms

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 87ms

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

📧 MX Records#

5 records 75ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	108.177.14.27 2a00:1450:4010:c1e::1a	lt-in-f27.1e100.net lb-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1b	lcbomp-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4003:c26::1a	tp-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx2.googlemail.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx3.googlemail.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 78ms

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

🔐 HTTPS Records#

1 records 110ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.89.73,172.67.156.243 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5949,2606:4700:3031::ac43:9cf3

📝 TXT Records#

1 records 225ms

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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

327ms

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

🏷️ SOA#

85ms

Field	Value
Serial	2405676268
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#

86ms

87ms

75ms

AAAA

78ms

TXT

225ms

CAA

86ms

HTTPS

110ms

TLSA

251ms

SOA

85ms

MTA-STS

272ms

DNSSEC

327ms

SRV

0ms

Total

3794ms

🕐 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	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 shown	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