studentkorsel.dk

📜 Historical scan 2026-09-07 14:49:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studentkorsel.dk is a .dk domain served by 2 nameservers (ns1.vercel-dns.com, ns2.vercel-dns.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.150.1.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 56ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.vercel-dns.com	198.51.44.13 2620:4d:4000:6259:7:13:0:1	dns1.p13.nsone.net dns1.p13.nsone.net	AS62597 NSONE Inc AS62597 NSONE Inc
ns2.vercel-dns.com	198.51.45.13 2a00:edc0:6259:7:13::2	dns2.p13.nsone.net dns2.p13.nsone.net	AS62597 NSONE Inc AS62597 NSONE Inc

🌍 A Records#

2 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.150.1.1	1800s	—	AS16509	Amazon.com, Inc.	216.150.1.0/24	🇺🇸 United States	—
216.150.16.1	1800s	—	AS16509	Amazon.com, Inc.	216.150.16.0/24	🇺🇸 United States	—

📧 MX Records#

2 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	3600s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 368ms

TXT Record
v=spf1 include:spf.onlinemail.io -all

✉️ SPF#

Policy	Record (studentkorsel.dk)
-all (hard fail)	v=spf1 include:spf.onlinemail.io -all

📨 DMARC#

Policy	Record (_dmarc.studentkorsel.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

3 records 59ms

Flags	Tag	Value
0	issue	letsencrypt.org
0	issue	pki.goog
0	issue	sectigo.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-22 21:14:17

www CNAME	cname.vercel-dns.com (all on vercel-dns.com) → 66.33.60.34 76.76.21.164 (AS16509)
www vs bare domain	Same network studentkorsel.dk: 216.150.1.129 216.150.16.65 (AS16509) www.studentkorsel.dk: 66.33.60.34 76.76.21.164 (AS16509)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9082ms

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	1785747194
Primary NS (MNAME)	ns1.vercel-dns.com
Responsible (RNAME)	hostmaster@nsone.net
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

56ms

61ms

55ms

AAAA

67ms

TXT

368ms

CAA

59ms

HTTPS

84ms

TLSA

172ms

SOA

0ms

MTA-STS

105ms

DNSSEC

9082ms

SRV

122ms

Total

9632ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 21:14:17	725ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-09 10:23:35	1041ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-01 05:22:07	778ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 00:24:24	709ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-07 14:49:08 shown	9632ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-28 04:49:36	1171ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-24 23:18:53	951ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-06 13:41:13	1053ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 12:19:18	552ms	2 NS 1 A 2 MX	🔒 Secure