os.dk

📜 Historical scan 2026-10-11 22:41:30  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

os.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.192.246.145 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by fpo9.mail.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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#

4 records   108ms
NameserverIP addressesPTRASN / ISP
ns1.eurodns.com 199.167.66.107
2610:1c8:b002::107		 ns1.eurodns.com
ns1.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns2.eurodns.com 104.37.178.107
2610:1c8:b001::107		 ns2.eurodns.com
ns2.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns3.eurodns.com 199.167.66.108
2610:1c8:b002::108		 ns3.eurodns.com
ns3.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC
ns4.eurodns.com 104.37.178.108
2610:1c8:b001::108		 ns4.eurodns.com
ns4.eurodns.com		 AS23393 NuCDN LLC
AS23393 NuCDN LLC

🌍 A Records#

3 records   143ms
IPTTLPTRASNISP / OrgCIDRCountryCity
18.192.246.145 600s ec2-18-192-246-145.eu-central-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 18.192.0.0/13 🇩🇪 Germany Frankfurt am Main
18.193.144.171 600s ec2-18-193-144-171.eu-central-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 18.192.0.0/13 🇩🇪 Germany Frankfurt am Main
3.125.131.179 600s ec2-3-125-131-179.eu-central-1.compute.amazonaws.com AS16509 Amazon.com, Inc. 3.96.0.0/11 🇩🇪 Germany Frankfurt am Main

📧 MX Records#

1 records   105ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s fpo9.mail.dk 34.140.124.121 121.124.140.34.bc.googleusercontent.com AS396982 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   375ms
TXT Record
v=spf1 include:mail.dk ~all

✉️ SPF#

PolicyRecord (os.dk)
~all (soft fail) v=spf1 include:mail.dk ~all

📨 DMARC#

PolicyRecord (_dmarc.os.dk)
p=reject v=DMARC1; p=reject; fo=1; rua=mailto:cv1zdpyr@ag.eu.dmarcian.com; ruf=mailto:cv1zdpyr@fr.eu.dmarcian.com;

📬 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 2026-10-14 00:26:12
www CNAMEos.dk (all on os.dk)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

192ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

102ms
FieldValue
Serial2026011648
Primary NS (MNAME)ns1.eurodns.com
Responsible (RNAME)hostmaster@eurodns.com
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-11 22:57:22
FieldValue
RegistrarEurodns S.A
Registered1997-01-31
Expires2027-03-31 (164d)

🔗 Same registrant#

442 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
1118.dkEurodns S.A
113online.dkEurodns S.A
12mobil.dkEurodns S.A
4x90.dkEurodns S.A
70151880.dkEurodns S.A
90909090.dkEurodns S.A
adslhome.dkEurodns S.A
afwa.dkEurodns S.A
aplus-mail.dkEurodns S.A
aplusmail.dkEurodns S.A
as4.dkEurodns S.A
balle-bredsted.dkEurodns S.A
basisinternet.dkEurodns S.A
besked-service.dkEurodns S.A
besked-svar.dkEurodns S.A
beskedboks.dkEurodns S.A
bierstedaf.dkEurodns S.A
bigmail.dkEurodns S.A
bio.dkEurodns S.A
blue9.dkEurodns S.A
blueposition.dkEurodns S.A
boger.dkEurodns S.A
bpcloud.dkEurodns S.A
branchesalg.dkEurodns S.A
bredbaand-adsl.dkEurodns S.A
bredbaand-portal.dkEurodns S.A
bredbaand-telefoni.dkEurodns S.A
bredbaand.dkEurodns S.A
bredbaandtelefoni.dkEurodns S.A
bredband2go.dkEurodns S.A
bredbånd-telefoni.dkEurodns S.A
bredbånd2go.dkEurodns S.A
bredbåndprivat.dkEurodns S.A
bredbåndsnet.dkEurodns S.A
bredbåndstv.dkEurodns S.A
bredbåndtelefoni.dkEurodns S.A
businessvideo.dkEurodns S.A
c-anl.dkEurodns S.A
cabeltalk.dkEurodns S.A
ccelab.dkEurodns S.A
chicks.dkEurodns S.A
cinema.dkEurodns S.A
cloudvideo.dkEurodns S.A
connectlync.dkEurodns S.A
connectvideo.dkEurodns S.A
contactcentereurope.dkEurodns S.A
coopmobil.dkEurodns S.A
cubeio.dkEurodns S.A
cyberdagen.dkEurodns S.A
danmarksoplysningen.dkEurodns S.A
dinge-lin.dkEurodns S.A
dinge-link.dkEurodns S.A
dingelinks.dkEurodns S.A
dknet.dkEurodns S.A
duet.dkEurodns S.A
eeeasy.dkEurodns S.A
egeskovnet.dkEurodns S.A
ekstraservice.dkEurodns S.A
ekstraservices.dkEurodns S.A
epost-danmark.dkEurodns S.A
eqo.dkEurodns S.A
erhvervssalg.dkEurodns S.A
erhvervtdc.dkEurodns S.A
ewebprod-ekstern.dkEurodns S.A
ewebprod-intern.dkEurodns S.A
ewebprodekstern.dkEurodns S.A
ewebprodtma.dkEurodns S.A
eye-see.dkEurodns S.A
fasttvnet.dkEurodns S.A
fdu.dkEurodns S.A
firmafon2.dkEurodns S.A
flexdata10.dkEurodns S.A
flexdata50.dkEurodns S.A
foreningsbredbånd.dkEurodns S.A
fototdconline.dkEurodns S.A
froekenklokken.dkEurodns S.A
frokenklokken.dkEurodns S.A
fwadk.dkEurodns S.A
fwaplus.dkEurodns S.A
gennemskueligepriser.dkEurodns S.A
globaldial-up.dkEurodns S.A
globaldialup.dkEurodns S.A
hjemmeadsl.dkEurodns S.A
hjemmebredbaand.dkEurodns S.A
hmctest1.dkEurodns S.A
hometrio.dkEurodns S.A
hvioptest.dkEurodns S.A
i-see.dkEurodns S.A
ikastsyd.dkEurodns S.A
internetsecurity.dkEurodns S.A
isee.dkEurodns S.A
jou-see.dkEurodns S.A
jousee.dkEurodns S.A
ju-see.dkEurodns S.A
jusee.dkEurodns S.A
kabel-tv.dkEurodns S.A
kabelbredbaand.dkEurodns S.A
kabelsnak.dkEurodns S.A
kabeltalk.dkEurodns S.A
kabeltv.dkEurodns S.A

Showing 100 of 442.

📋 WHOIS#

⏱️ Lookup Timing#

NS
108ms
A
143ms
MX
105ms
AAAA
125ms
TXT
375ms
CAA
122ms
HTTPS
137ms
TLSA
145ms
SOA
102ms
MTA-STS
123ms
DNSSEC
192ms
SRV
161ms
Total
995ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-14 00:26:12 1227ms 4 NS 3 A 1 MX 🔒 Secure
2026-10-11 22:41:30 shown 995ms 4 NS 3 A 1 MX 🔒 Secure
2026-09-27 07:32:20 1014ms 4 NS 3 A 1 MX 🔒 Secure
2026-09-25 06:58:19 1280ms 4 NS 3 A 1 MX 🔒 Secure
2026-09-24 06:38:00 898ms 4 NS 3 A 1 MX 🔒 Secure
2026-09-13 04:32:08 1009ms 4 NS 3 A 1 MX 🔒 Secure
2026-09-06 03:44:21 1012ms 4 NS 3 A 1 MX 🔒 Secure
2026-08-19 06:24:25 2645ms 4 NS 3 A 1 MX 🔒 Secure
2026-08-02 22:40:05 8881ms 4 NS 3 A 1 MX 🔒 Secure
2026-07-13 03:56:18 9969ms 4 NS 3 A 1 MX 🔒 Secure
2026-07-11 20:44:39 2255ms 4 NS 3 A 1 MX 🔒 Secure
2026-06-29 21:34:28 1348ms 4 NS 3 A 1 MX 🔒 Secure
2026-06-24 07:58:37 1734ms 4 NS 3 A 1 MX 🔒 Secure
2026-06-18 06:07:41 1298ms 4 NS 3 A 1 MX 🔒 Secure
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