studieportalen.dk

Records from scan: 2026-10-19 05:44:53 · 1522ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studieportalen.dk is a .dk domain served by 2 nameservers (ivan.ns.cloudflare.com, janet.ns.cloudflare.com). It was registered on 28 November 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.12.231 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 DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ivan.ns.cloudflare.com	108.162.193.120 172.64.33.120 173.245.59.120 2606:4700:58::adf5:3b78 2803:f800:50::6ca2:c178 2a06:98c1:50::ac40:2178	ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
janet.ns.cloudflare.com	108.162.192.169 172.64.32.169 173.245.58.169 2606:4700:50::adf5:3aa9 2803:f800:50::6ca2:c0a9 2a06:98c1:50::ac40:20a9	janet.ns.cloudflare.com janet.ns.cloudflare.com janet.ns.cloudflare.com janet.ns.cloudflare.com janet.ns.cloudflare.com janet.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

3 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.12.231	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.13.231	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.72.32	300s	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records#

5 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	108.177.14.26 2a00:1450:4010:c1e::1b	lt-in-f26.1e100.net lb-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

3 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:ce7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:20:0:0:0:0:0/44	—	—
2606:4700:20::681a:de7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:20:0:0:0:0:0/44	—	—
2606:4700:20::ac43:4820	300s	—	AS13335	Cloudflare, Inc.	2606:4700:20:0:0:0:0:0/44	—	—

🔐 HTTPS Records#

1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.26.12.231,104.26.13.231,172.67.72.32 ipv6hint=2606:4700:20::681a:ce7,2606:4700:20::681a:de7,2606:4700:20::ac43:4820

📝 TXT Records#

1 records 163ms

TXT Record
v=spf1 mx ip4:185.223.26.234 include:sendgrid.net include:mail.zendesk.com include:_spf.google.com ~all

✉️ SPF#

Policy	Record (studieportalen.dk)
~all (soft fail)	v=spf1 mx ip4:185.223.26.234 include:sendgrid.net include:mail.zendesk.com include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.studieportalen.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:aa77f8ae9f7149d8992c476660fbe019@dmarc-reports.cloudflare.net;

📬 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#

checked 2026-10-19 05:44:53

www	104.26.12.231 104.26.13.231 172.67.72.32 2606:4700:20::681a:ce7 2606:4700:20::681a:de7 2606:4700:20::ac43:4820 (AS13335) (address records, no CNAME)
www vs bare domain	Same network studieportalen.dk: 104.26.12.231 104.26.13.231 172.67.72.32 2606:4700:20::681a:ce7 (AS13335) www.studieportalen.dk: 104.26.12.231 104.26.13.231 172.67.72.32 2606:4700:20::681a:ce7 (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

✍️ DKIM keys#

3 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit
s1	s1.domainkey.u6202271.wl022.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u6202271.wl022.sendgrid.net	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

30ms

Field	Value
Serial	2417799043
Primary NS (MNAME)	ivan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-19 06:09:06

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-11-28
Expires	2028-12-31 (804d)

🔗 Same registrant#

22 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
e-study.dk	Simply.com A/S
erdetstudenteruge.dk	Simply.com A/S
gdf.dk	Punktum dk A/S (direct)
godekarakterer.dk	Simply.com A/S
grammatikbog.dk	Punktum dk A/S (direct)
guldnoter.dk	Punktum dk A/S (direct)
gymhjælpen.dk	Simply.com A/S
kildekritik.dk	Simply.com A/S
laerogleg.dk	Simply.com A/S
lektieportal.dk	Simply.com A/S
lærerstuderende.dk	Simply.com A/S
lærogleg.dk	Simply.com A/S
notenet.dk	Simply.com A/S
paedagogstuderende.dk	Simply.com A/S
rettenøgle.dk	Punktum dk A/S (direct)
schulhilfeverlag.dk	Simply.com A/S
skolehjaelpen.dk	Punktum dk A/S (direct)
srp-bog.dk	Simply.com A/S
srp-bogen.dk	Simply.com A/S
srpbog.dk	Simply.com A/S
studentmedia.dk	Simply.com A/S
studentmediagroup.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

44ms

30ms

37ms

AAAA

37ms

TXT

163ms

CAA

35ms

HTTPS

35ms

TLSA

140ms

SOA

30ms

MTA-STS

62ms

DNSSEC

114ms

SRV

73ms

Total

1522ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 05:44:53 shown	1522ms	2 NS 3 A 5 MX	🔒 Secure
2026-10-14 23:13:41	726ms	2 NS 3 A 5 MX	🔒 Secure
2026-09-30 21:25:17	886ms	2 NS 3 A 5 MX	🔒 Secure
2026-09-30 04:05:13	730ms	2 NS 3 A 5 MX	🔒 Secure
2026-09-29 05:39:30	936ms	2 NS 3 A 5 MX	🔒 Secure
2026-09-20 15:45:50	950ms	2 NS 3 A 5 MX	🔒 Secure
2026-09-06 21:07:02	2162ms	2 NS 3 A 5 MX	🔒 Secure
2026-08-27 18:56:54	737ms	2 NS 3 A 5 MX	🔒 Secure
2026-08-26 16:46:18	2140ms	2 NS 3 A 5 MX	🔒 Secure
2026-08-24 09:38:07	12049ms	2 NS 3 A 5 MX	🔒 Secure
2026-08-13 05:47:31	17662ms	2 NS 3 A 5 MX	🔒 Secure
2026-08-08 00:34:53	2539ms	2 NS 3 A 5 MX	🔒 Secure
2026-07-11 20:23:59	3542ms	2 NS 3 A 5 MX	🔒 Secure
2026-07-09 01:08:27	1829ms	2 NS 3 A 5 MX	🔒 Secure
2026-07-03 11:13:57	1475ms	2 NS 3 A 5 MX	🔒 Secure
2026-06-28 17:33:20	1554ms	2 NS 3 A 5 MX	🔒 Secure
2026-06-27 08:04:28	1050ms	2 NS 3 A 5 MX	🔒 Secure
2026-06-25 20:52:27	2162ms	2 NS 3 A 5 MX	🔒 Secure
2026-06-18 05:33:46	30093ms	2 NS 3 A 5 MX	🔒 Secure
2026-06-18 04:03:30	1215ms	2 NS 3 A 5 MX	🔒 Secure