studienet.dk

📜 Historical scan 2026-06-18 01:09:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studienet.dk is a .dk domain served by 2 nameservers (ivan.ns.cloudflare.com, janet.ns.cloudflare.com). It was registered on 5 July 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.0.60 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 33ms

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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.0.60	—	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.1.60	—	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.69.153	—	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records#

7 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	aspmx.l.google.com	142.251.1.26 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1a	lb-in-f26.1e100.net lh-in-x1a.1e100.net lh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	—	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	—	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	—	aspmx2.googlemail.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
30	—	aspmx3.googlemail.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	—	aspmx4.googlemail.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	—	aspmx5.googlemail.com	192.178.230.26 2404:6800:400b:c01b::1a	yunrtab-in-f26.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

3 records 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:13c	—	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::681a:3c	—	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::ac43:4599	—	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

1 records 27ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.26.0.60,104.26.1.60,172.67.69.153 ipv6hint=2606:4700:20::681a:3c,2606:4700:20::681a:13c,2606:4700:20::ac43:4599

📝 TXT Records#

2 records 141ms

TXT Record
google-site-verification=g2AXjwcljeIB3AyR8KhPcGaT-0-iY42KHeuaaSEH4bY
v=spf1 mx ip4:185.223.26.234 include:sendgrid.net include:_spf.google.com ~all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.studienet.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:05db409b4acb4ea0b3350be33ecad989@dmarc-reports.cloudflare.net; pct=100;

📬 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 17:59:42

www	104.26.0.60 104.26.1.60 172.67.69.153 2606:4700:20::681a:13c 2606:4700:20::681a:3c 2606:4700:20::ac43:4599 (AS13335) (address records, no CNAME)
www vs bare domain	Same network studienet.dk: 104.26.0.60 104.26.1.60 172.67.69.153 2606:4700:20::681a:13c (AS13335) www.studienet.dk: 104.26.0.60 104.26.1.60 172.67.69.153 2606:4700:20::681a:13c (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.u212455.wl206.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u212455.wl206.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: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

95ms

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

🏷️ SOA#

30ms

Field	Value
Serial	2407017879
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 2026-10-07 06:18:26

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-07-05
Expires	2030-09-30 (1440d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

32ms

AAAA

32ms

TXT

141ms

CAA

26ms

HTTPS

27ms

TLSA

178ms

SOA

30ms

MTA-STS

70ms

DNSSEC

95ms

SRV

139ms

Total

1080ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 17:59:42	2952ms	2 NS 3 A 7 MX	🔒 Secure
2026-09-24 04:24:05	780ms	2 NS 3 A 7 MX	🔒 Secure
2026-09-23 06:07:17	2045ms	2 NS 3 A 7 MX	🔒 Secure
2026-09-18 20:09:42	1663ms	2 NS 3 A 7 MX	🔒 Secure
2026-09-11 18:13:18	2650ms	2 NS 3 A 7 MX	🔒 Secure
2026-09-10 03:32:41	1138ms	2 NS 3 A 7 MX	🔒 Secure
2026-09-04 08:26:44	1017ms	2 NS 3 A 7 MX	🔒 Secure
2026-09-01 00:00:22	995ms	2 NS 3 A 7 MX	🔒 Secure
2026-08-26 16:16:40	860ms	2 NS 3 A 7 MX	🔒 Secure
2026-08-07 17:24:38	17560ms	2 NS 3 A 7 MX	🔒 Secure
2026-07-25 11:43:55	18031ms	2 NS 3 A 7 MX	🔒 Secure
2026-07-10 01:54:19	2048ms	2 NS 3 A 7 MX	🔒 Secure
2026-07-08 17:49:52	19073ms	2 NS 3 A 7 MX	🔒 Secure
2026-07-06 06:49:28	33176ms	2 NS 3 A 0 MX	🔒 Secure
2026-07-02 11:51:00	1846ms	2 NS 3 A 7 MX	🔒 Secure
2026-06-18 01:09:12 shown	1080ms	2 NS 3 A 7 MX	🔒 Secure