fagforeningstjek.dk

📜 Historical scan 2026-10-06 18:16:22  ·  ← 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 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   28ms
NameserverIP addressesPTRASN / ISP
jay.ns.cloudflare.com 108.162.193.123
172.64.33.123
173.245.59.123
2606:4700:58::adf5:3b7b
2803:f800:50::6ca2:c17b
2a06:98c1:50::ac40:217b		 jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
uma.ns.cloudflare.com 108.162.192.146
172.64.32.146
173.245.58.146
2606:4700:50::adf5:3a92
2803:f800:50::6ca2:c092
2a06:98c1:50::ac40:2092		 uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.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   30ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.61.20 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.205.39 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

2 records   30ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::ac43:cd27 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3031::6815:3d14 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   29ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.61.20,172.67.205.39 ech=AEX+DQBBQAAgACDMtgog27JQNwp1EK/dZeQGReYSJtUTmfdEYQjhBYXWMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:cd27,2606:4700:3031::6815:3d14

📝 TXT Records#

1 records   176ms
TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_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 2026-10-23 07:26:37
www104.21.61.20 172.67.205.39 2606:4700:3030::ac43:cd27 2606:4700:3031::6815:3d14 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: 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#

52ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

35ms
FieldValue
Serial2416786767
Primary NS (MNAME)jay.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-16 16:06:27
FieldValue
RegistrarSimply.com A/S
Registered2015-02-10
Expires2027-02-28 (128d)

🔗 Same registrant#

47 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).

DomainRegistrar
3-f.dkSimply.com A/S
3f-a.dkSimply.com A/S
3f-design.dkSimply.com A/S
3f.dkSimply.com A/S
3fa.dkSimply.com A/S
3fi.dkSimply.com A/S
3findustri.dkSimply.com A/S
3finternational.dkSimply.com A/S
3fitst.dkSimply.com A/S
3fkongres.dkSimply.com A/S
3frus.dkSimply.com A/S
3ftransport.dkCURANET A/S
3ftst.dkSimply.com A/S
3fudv.dkSimply.com A/S
3fudvtst.dkSimply.com A/S
70300300.dkSimply.com A/S
blivijob.dkSimply.com A/S
dagbladet3f.dkSimply.com A/S
danskemodel.dkSimply.com A/S
faellesforbundet.dkSimply.com A/S
fagbaldet3f.dkSimply.com A/S
fagbladet.dkSimply.com A/S
fagligtfaellesforbund.dkSimply.com A/S
fairpensionsalder.dkSimply.com A/S
fff.dkSimply.com A/S
fællesskab.dkSimply.com A/S
kad.dkSimply.com A/S
landsklubber.dkSimply.com A/S
langsoehus.dkSimply.com A/S
langsøhus.dkSimply.com A/S
lærlinge.dkSimply.com A/S
nejtilsocialdumping.dkSimply.com A/S
ok-rent.dkSimply.com A/S
overenskomster.dkSimply.com A/S
r-u-s.dkSimply.com A/S
sammenomok20.dkSimply.com A/S
skaevt.dkSimply.com A/S
skraldemand.dkSimply.com A/S
skævt.dkSimply.com A/S
stopsocialdumping.dkSimply.com A/S
tib.dkSimply.com A/S
tref.dkSimply.com A/S
trefu.dkSimply.com A/S
uddannelsestjek.dkSimply.com A/S
ungi3f.dkSimply.com A/S
vaerdigreform.dkSimply.com A/S
værdigreform.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
28ms
A
30ms
MX
41ms
AAAA
30ms
TXT
176ms
CAA
38ms
HTTPS
29ms
TLSA
58ms
SOA
35ms
MTA-STS
44ms
DNSSEC
52ms
SRV
71ms
Total
407ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-23 07:26:36 1372ms 2 NS 2 A 0 MX 🔒 Secure
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 shown 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 606ms 2 NS 2 A 0 MX 🔓 Insecure
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