istav.dk

📜 Historical scan 2026-06-20 17:42:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

istav.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It was registered on 11 April 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.97.131.85 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx01.dandomain.dk. The zone is not DNSSEC-signed, has no 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#

2 records 112ms

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#

1 records 82ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.97.131.85	300s	adphttpiswi04.alinea.dedicated.cohaesio.net	AS47292	Sentia Denmark A/S	212.97.128.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 108ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx01.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ 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 2026-10-13 03:59:11

www	104.21.73.33 172.67.157.112 2606:4700:3030::ac43:9d70 2606:4700:3033::6815:4921 (AS13335) (address records, no CNAME)
www vs bare domain	Different networks istav.dk: 212.97.131.85 (AS47292) www.istav.dk: 104.21.73.33 172.67.157.112 2606:4700:3030::ac43:9d70 2606:4700:3033::6815:4921 (AS13335) (all like this)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

407ms

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

🏷️ SOA#

81ms

Field	Value
Serial	2406289260
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 2026-10-15 11:04:05

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-04-11
Expires	2027-04-30 (193d)

🔗 Same registrant#

175 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
0klassefaget.dk	Eurodns S.A
1094.dk	Punktum dk A/S (direct)
5emner.dk	Punktum dk A/S (direct)
5nyeemner.dk	Punktum dk A/S (direct)
ad-dev.dk	Punktum dk A/S (direct)
ad-prod.dk	Punktum dk A/S (direct)
ad-staging.dk	Punktum dk A/S (direct)
ad-test.dk	Punktum dk A/S (direct)
afgangsprøver.dk	Eurodns S.A
aigo.dk	Punktum dk A/S (direct)
alinea-web.dk	Punktum dk A/S (direct)
alinea.dk	Punktum dk A/S (direct)
alineadigital.dk	Punktum dk A/S (direct)
alvids.dk	Punktum dk A/S (direct)
athene.dk	Punktum dk A/S (direct)
bingoweb.dk	Punktum dk A/S (direct)
biologifocus.dk	Punktum dk A/S (direct)
blivklog.dk	Punktum dk A/S (direct)
bog.dk	Punktum dk A/S (direct)
bookguide.dk	Punktum dk A/S (direct)
bornsliv.dk	Punktum dk A/S (direct)
camptysk.dk	Punktum dk A/S (direct)
carlsen.dk	Punktum dk A/S (direct)
classteam.dk	Punktum dk A/S (direct)
clio.dk	Eurodns S.A
cliocloud.dk	Eurodns S.A
clioevalueringsopgaver.dk	Eurodns S.A
clionoc.dk	Eurodns S.A
cliopulten.dk	Eurodns S.A
clioskole.dk	Eurodns S.A
clioskyen.dk	Eurodns S.A
cliotræning.dk	Eurodns S.A
dansk-skolen.dk	Eurodns S.A
danskfessor.dk	Punktum dk A/S (direct)
dansklandskabet.dk	Punktum dk A/S (direct)
danskskole.dk	Eurodns S.A
danskskolen.dk	Eurodns S.A
dansktime.dk	Eurodns S.A
danskunivers.dk	Punktum dk A/S (direct)
denførstelæsning.dk	Punktum dk A/S (direct)
didaktiker.dk	Punktum dk A/S (direct)
differentiering.dk	Punktum dk A/S (direct)
digitalfaget.dk	Eurodns S.A
dmiklassematematik.dk	Punktum dk A/S (direct)
dmimatematik.dk	Punktum dk A/S (direct)
dmmatematik.dk	Punktum dk A/S (direct)
easyreaders.dk	Punktum dk A/S (direct)
edspace.dk	Punktum dk A/S (direct)
edulab.dk	Punktum dk A/S (direct)
elevlab.dk	Punktum dk A/S (direct)
engelskfaget.dk	Eurodns S.A
engelskfessor.dk	Punktum dk A/S (direct)
engelskskoleordbog.dk	Punktum dk A/S (direct)
engelskunivers.dk	Punktum dk A/S (direct)
erdutalblind.dk	Punktum dk A/S (direct)
eskolebog.dk	Punktum dk A/S (direct)
faerdighedsproeven.dk	Punktum dk A/S (direct)
familiefessor.dk	Punktum dk A/S (direct)
fesor.dk	Punktum dk A/S (direct)
fessor.dk	Punktum dk A/S (direct)
fessordysten.dk	Punktum dk A/S (direct)
fessorsaktiviteter.dk	Punktum dk A/S (direct)
fessorsfamilie.dk	Punktum dk A/S (direct)
fessorskurser.dk	Punktum dk A/S (direct)
fessorstalkuffert.dk	Punktum dk A/S (direct)
filmabc.dk	Punktum dk A/S (direct)
fleksbog.dk	Punktum dk A/S (direct)
fleksbogen.dk	Punktum dk A/S (direct)
flexbog.dk	Punktum dk A/S (direct)
forfatter.dk	Punktum dk A/S (direct)
forlagetturbo.dk	Punktum dk A/S (direct)
forlagmallingbeck.dk	Punktum dk A/S (direct)
forlagsliv.dk	Punktum dk A/S (direct)
formatnet.dk	Punktum dk A/S (direct)
franskfessor.dk	Punktum dk A/S (direct)
fysik-kemi-timen.dk	Eurodns S.A
fysik-kemifokus.dk	Punktum dk A/S (direct)
fysiktalent.dk	Punktum dk A/S (direct)
gekko-engelsk.dk	Punktum dk A/S (direct)
gekko-fransk.dk	Punktum dk A/S (direct)
gekko-tysk.dk	Punktum dk A/S (direct)
gekkotysk.dk	Punktum dk A/S (direct)
geografifocus.dk	Punktum dk A/S (direct)
gymnasie-klar.dk	Punktum dk A/S (direct)
gymnasie-portalen.dk	Punktum dk A/S (direct)
haandvaerkdesignfaget.dk	Eurodns S.A
historieunivers.dk	Punktum dk A/S (direct)
håndværkdesignfaget.dk	Eurodns S.A
i-skolebogen.dk	Punktum dk A/S (direct)
innovationfaget.dk	Eurodns S.A
innovationsfaget.dk	Eurodns S.A
iskolebog.dk	Punktum dk A/S (direct)
isprog.dk	Punktum dk A/S (direct)
iwbunivers.dk	Punktum dk A/S (direct)
kalenderfessor.dk	Punktum dk A/S (direct)
klimafessor.dk	Punktum dk A/S (direct)
klogpaanaturfag.dk	Eurodns S.A
komma.dk	Punktum dk A/S (direct)
kristendomskundskab.dk	Eurodns S.A
lindhardt-og-ringhof.dk	Punktum dk A/S (direct)

Showing 100 of 175.

📋 WHOIS#

⏱️ Lookup Timing#

112ms

82ms

108ms

AAAA

132ms

TXT

511ms

CAA

92ms

HTTPS

134ms

TLSA

148ms

SOA

81ms

MTA-STS

177ms

DNSSEC

407ms

SRV

253ms

Total

1150ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 03:59:11	678ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-12 02:02:00	416ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-07 17:24:28	428ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-29 20:02:43	1440ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-27 19:38:37	707ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-13 13:16:52	1043ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-05 21:13:05	960ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 17:42:00 shown	1150ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 11:37:45	1022ms	2 NS 1 A 1 MX	🔓 Insecure