studentrun.dk

📜 Historical scan 2026-07-27 03:47:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studentrun.dk is a .dk domain served by 2 nameservers (susan.ns.cloudflare.com, tosana.ns.cloudflare.com). It first appeared in the .dk zone on 3 July 2026. Its website address 104.21.57.28 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mailserver.purelymail.com. 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 197ms

Nameserver	IP addresses	PTR	ASN / ISP
susan.ns.cloudflare.com	108.162.194.199 162.159.38.199 172.64.34.199 2606:4700:50::a29f:26c7 2803:f800:50::6ca2:c2c7 2a06:98c1:50::ac40:22c7	susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com susan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tosana.ns.cloudflare.com	108.162.195.43 162.159.44.43 172.64.35.43 2606:4700:58::a29f:2c2b 2803:f800:50::6ca2:c32b 2a06:98c1:50::ac40:232b	tosana.ns.cloudflare.com tosana.ns.cloudflare.com tosana.ns.cloudflare.com tosana.ns.cloudflare.com tosana.ns.cloudflare.com tosana.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 174ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.57.28	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.158.191	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 189ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mailserver.purelymail.com	18.204.123.63	ec2-18-204-123-63.compute-1.amazonaws.com	AS14618 Amazon.com, Inc.

🔷 AAAA Records (IPv6)#

2 records 187ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:391c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:9ebf	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 188ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.57.28,172.67.158.191 ech=AEX+DQBB2AAgACAT+h9OHslhyT7m+x8udL6RxwW89YFtGo6GuEuV8WD6SwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:391c,2606:4700:3033::ac43:9ebf

📝 TXT Records#

2 records 548ms

TXT Record
purelymail_ownership_proof=39b1c9d06a0d5b545d8cb0303d8d4fd09c5b19eb015df38ea6152f2fc2ef1887582d1c37953eb26e5480cb7f2058bba6b94f9674cf3a64b51d21ccb1b6f552ed
v=spf1 include:_spf.purelymail.com ~all

✉️ SPF#

Policy	Record (studentrun.dk)
~all (soft fail)	v=spf1 include:_spf.purelymail.com ~all

📨 DMARC#

Policy	Record (_dmarc.studentrun.dk)
p=reject	v=DMARC1; p=reject; ruf=mailto:dmarc@purelymail.com

📬 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 2026-10-15 06:01:59

www	NXDOMAIN
www vs bare domain	www does not resolve studentrun.dk: 104.21.57.28 172.67.158.191 2606:4700:3031::6815:391c 2606:4700:3033::ac43:9ebf (AS13335) www.studentrun.dk: no address (all like this)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

266ms

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	2410582740
Primary NS (MNAME)	susan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

197ms

174ms

189ms

AAAA

187ms

TXT

548ms

CAA

177ms

HTTPS

188ms

TLSA

174ms

SOA

0ms

MTA-STS

215ms

DNSSEC

266ms

SRV

209ms

Total

2133ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 21:30:43	892ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-04 07:23:33	1228ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-31 02:35:33	2994ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-28 11:24:00	1391ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-28 03:59:24	3718ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-27 03:47:59 shown	2133ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-26 03:38:47	2387ms	2 NS 0 A 5 MX	🔓 Insecure
2026-07-03 08:31:35	3365ms	2 NS 0 A 0 MX	🔓 Insecure