fagforeningstjek.dk

📜 Historical scan 2026-06-17 09:11:53 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fagforeningstjek.dk is a .dk domain served by 2 nameservers (jay.ns.cloudflare.com, uma.ns.cloudflare.com). It was registered on 10 February 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.61.20 is hosted by Cloudflare, Inc. (AS13335). 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 69ms

Nameserver	IP addresses	PTR	ASN / ISP
jay.ns.cloudflare.com	—	—	—
uma.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 70ms

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

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 63ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:3d14	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:cd27	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 67ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.61.20,172.67.205.39 ech=AEX+DQBBBwAgACCqfmcfnIuoKJ5IlEf/fctMxRpLGzhWDr4T3BFQFMHreQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:3d14,2606:4700:3037::ac43:cd27

📝 TXT Records#

1 records 184ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (fagforeningstjek.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.fagforeningstjek.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 16:05:18

www	104.21.61.20 172.67.205.39 2606:4700:3030::ac43:cd27 2606:4700:3031::6815:3d14 (AS13335) (address records, no CNAME)
www vs bare domain	Same network fagforeningstjek.dk: 104.21.61.20 172.67.205.39 2606:4700:3030::ac43:cd27 2606:4700:3031::6815:3d14 (AS13335) www.fagforeningstjek.dk: 104.21.61.20 172.67.205.39 2606:4700:3030::ac43:cd27 2606:4700:3031::6815:3d14 (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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

170ms

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

🏷️ SOA#

48ms

Field	Value
Serial	2406673509
Primary NS (MNAME)	jay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 16:06:27

Field	Value
Registrar	Simply.com A/S
Registered	2015-02-10
Expires	2027-02-28 (132d)

🔗 Same registrant#

29 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
3-f.dk	Simply.com A/S
3f-a.dk	Simply.com A/S
3f.dk	Simply.com A/S
3fa.dk	Simply.com A/S
3fi.dk	Simply.com A/S
3findustri.dk	Simply.com A/S
3finternational.dk	Simply.com A/S
3frus.dk	Simply.com A/S
3ftransport.dk	CURANET A/S
3ftst.dk	Simply.com A/S
3fudvtst.dk	Simply.com A/S
70300300.dk	Simply.com A/S
dagbladet3f.dk	Simply.com A/S
danskemodel.dk	Simply.com A/S
faellesforbundet.dk	Simply.com A/S
fagligtfaellesforbund.dk	Simply.com A/S
fff.dk	Simply.com A/S
fællesskab.dk	Simply.com A/S
landsklubber.dk	Simply.com A/S
langsoehus.dk	Simply.com A/S
lærlinge.dk	Simply.com A/S
nejtilsocialdumping.dk	Simply.com A/S
ok-rent.dk	Simply.com A/S
overenskomster.dk	Simply.com A/S
r-u-s.dk	Simply.com A/S
tib.dk	Simply.com A/S
trefu.dk	Simply.com A/S
ungi3f.dk	Simply.com A/S
vaerdigreform.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

69ms

70ms

60ms

AAAA

63ms

TXT

184ms

CAA

57ms

HTTPS

67ms

TLSA

70ms

SOA

48ms

MTA-STS

83ms

DNSSEC

170ms

SRV

0ms

Total

606ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 16:05:18	407ms	2 NS 2 A 0 MX	🔒 Secure
2026-10-16 15:53:00	2004ms	2 NS 2 A 0 MX	🔒 Secure
2026-10-06 18:16:22	407ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-29 17:18:07	486ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-24 01:28:49	563ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-23 20:04:05	678ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-09 13:18:55	1090ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-29 13:50:01	949ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-26 20:23:31	628ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-19 11:22:47	1315ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-09 05:49:11	1244ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-06 22:05:52	826ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-12 22:34:30	8552ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-28 13:20:57	921ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-22 21:15:59	810ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-22 02:15:52	1100ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 22:20:46	1176ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 20:19:15	868ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-17 09:11:53 shown	606ms	2 NS 2 A 0 MX	🔓 Insecure