studienet.dk

📜 Historical scan 2026-09-10 03:32:41 · ← 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 39ms

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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.0.60	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.1.60	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.69.153	300s	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records#

7 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	108.177.14.27 2a00:1450:4010:c0a::1b 2a00:1450:4010:c0a::1b	lt-in-f27.1e100.net lm-in-f27.1e100.net lm-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.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
20	300s	alt2.aspmx.l.google.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
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	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx4.googlemail.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx5.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

🔷 AAAA Records (IPv6)#

3 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:13c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::681a:3c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::ac43:4599	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

1 records 37ms

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 188ms

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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.studienet.dk	RvDT2X8FVN8Jl3J7t6ftKIW9b4mqkFL8idFC6_P8ML8
TXT	_acme-challenge.studienet.dk	YbZFSPlZhoSoEziy5r2Tlocc4sF9HnZJ_LxENRYbGQw
TXT	_acme-challenge.studienet.dk	oQmbFKXb3p4FCWaJreLpb94xJO9lzmQSmwqATr9D8cg
TXT	_acme-challenge.studienet.dk	qkGdQBw8f-I5qlgB9qjxsji5mvN7F9k0guaNtf0vT-Q

🔗 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#

0ms

Field	Value
Serial	2414429275
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 (1439d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

42ms

37ms

AAAA

56ms

TXT

188ms

CAA

31ms

HTTPS

37ms

TLSA

153ms

SOA

0ms

MTA-STS

69ms

DNSSEC

114ms

SRV

74ms

Total

1138ms

🕐 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 shown	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	1080ms	2 NS 3 A 7 MX	🔒 Secure