kursuskalenderen.dk DNS records

🖥️ Nameservers4 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.quickdns.dk	178.62.214.234 2a03:b0c0:2:d0::552:9001	— —	AS14061 DigitalOcean, LLC AS14061 DigitalOcean, LLC
ns2.quickdns.dk	185.126.153.42	amy.quickdns.dk	AS47527 DLX A/S
ns3.quickdns.dk	178.62.214.234 2a03:b0c0:2:d0::552:9001	— —	AS14061 DigitalOcean, LLC AS14061 DigitalOcean, LLC
ns4.quickdns.dk	185.126.153.42	amy.quickdns.dk	AS47527 DLX A/S

🌍 A Records1 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
37.16.4.149	900s	ip-37-16-4-149.customer.flyio.net	AS40509	Fly.io, Inc.	37.16.0.0/19	🇺🇸 United States	—

📧 MX Records2 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	900s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	900s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

🔷 AAAA Records (IPv6)1 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a09:8280:1::15e:78f6:0	900s	ipv6.customer.flyio.net	AS40509	Fly.io, Inc.	2a09:8280:1:0:0:0:0:0/48	🇺🇸 United States	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 883ms

TXT Record
hosted-email-verify=ctovyl0b
v=spf1 include:spf.migadu.com -all

✉️ SPF

Policy	Record (kursuskalenderen.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com -all

📨 DMARC

Policy	Record (_dmarc.kursuskalenderen.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

🔗 TLSA / DANE

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

🔐 DNSSEC124ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080401
Primary NS (MNAME)	ns1.quickdns.dk
Responsible (RNAME)	hostmaster@quickdns.dk
Refresh	14400s
Retry	7200s
Expire	2415600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

49ms

A

54ms

MX

53ms

AAAA

42ms

TXT

883ms

CAA

73ms

HTTPS

48ms

TLSA

384ms

SOA

0ms

MTA-STS

405ms

DNSSEC

124ms

SRV

494ms

Total

2595ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-06 00:44:45	2595ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-08-03 13:04:31	9472ms	4 NS 1 A 7 MX	🔓 Insecure	View
2026-07-29 23:27:59	1105ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-28 04:35:35	833ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-27 04:02:26	803ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-26 03:26:24	8793ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-25 03:05:08	707ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-24 02:34:28	771ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-23 01:37:24	9844ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-22 00:31:30	3783ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-20 23:29:35	686ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-19 12:43:58	745ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-18 08:11:40	788ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-17 05:48:45	670ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-16 02:39:32	709ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-09 03:56:00	898ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-05 20:27:08	1324ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-04 17:25:51	2617ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-03 01:25:28	507ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 01:51:03	1944ms	4 NS 1 A 7 MX	🔓 Insecure	View