respons-studier.dk

📜 Historical scan 2026-09-01 03:32:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

respons-studier.dk is a .dk domain served by 2 nameservers (april.ns.cloudflare.com, gerald.ns.cloudflare.com). It was registered on 16 September 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.93.192 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, 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 69ms

Nameserver	IP addresses	PTR	ASN / ISP
april.ns.cloudflare.com	108.162.192.66 172.64.32.66 173.245.58.66 2606:4700:50::adf5:3a42 2803:f800:50::6ca2:c042 2a06:98c1:50::ac40:2042	april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com april.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
gerald.ns.cloudflare.com	108.162.193.168 172.64.33.168 173.245.59.168 2606:4700:58::adf5:3ba8 2803:f800:50::6ca2:c1a8 2a06:98c1:50::ac40:21a8	gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com gerald.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 73ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.93.192	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.214.6	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 129ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	300s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

🔷 AAAA Records (IPv6)#

2 records 140ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:d606	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:5dc0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 127ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.93.192,172.67.214.6 ech=AEX+DQBBvQAgACDtWAvN1eb7hmAIExFDHE2OrFTt16EwrzMI1DHxBK/tTgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d606,2606:4700:3033::6815:5dc0

📝 TXT Records#

2 records 305ms

TXT Record
protonmail-verification=365413ea8a0c215f1ad4fa1161d1979a3dc75a9d
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

Policy	Record (respons-studier.dk)
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

Policy	Record (_dmarc.respons-studier.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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 2026-10-09 21:15:50

www	104.21.93.192 172.67.214.6 2606:4700:3032::ac43:d606 2606:4700:3033::6815:5dc0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network respons-studier.dk: 104.21.93.192 172.67.214.6 2606:4700:3032::ac43:d606 2606:4700:3033::6815:5dc0 (AS13335) www.respons-studier.dk: 104.21.93.192 172.67.214.6 2606:4700:3032::ac43:d606 2606:4700:3033::6815:5dc0 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.respons-studier.dk	gDbjbpZWPCycFri4f8pXkIAO93rSS5_mJg9jd9s36Ls
TXT	_acme-challenge.respons-studier.dk	tdV_D5vlPFVd9g7x_osQSzxaw-GiTO8xy2oP9D2iIu4

🔗 TLSA / DANE#

4 records 208ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC#

220ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413585195
Primary NS (MNAME)	april.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-03 14:44:56

Field	Value
Registrar	ONE.COM A/S
Registered	2025-09-16
Expires	2027-09-15 (327d)

📋 WHOIS#

⏱️ Lookup Timing#

69ms

73ms

129ms

AAAA

140ms

TXT

305ms

CAA

108ms

HTTPS

127ms

TLSA

208ms

SOA

0ms

MTA-STS

181ms

DNSSEC

220ms

SRV

162ms

Total

1426ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 14:20:43	1180ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 14:08:29	966ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-06 12:21:04	1521ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-01 03:32:17 shown	1426ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-08 04:03:50	1484ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 14:26:28	2819ms	2 NS 2 A 2 MX	🔓 Insecure