elkursus.dk DNS records

🖥️ Nameservers2 records 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 70ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.87	3600s	vm1447.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records7 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	173.194.222.27 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b	lo-in-f27.1e100.net lr-in-x1b.1e100.net lr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	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
5	3600s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx4.googlemail.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx5.googlemail.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 156ms

TXT Record
v=spf1 +a +mx +ip4:35.214.157.204 +ip4:5.134.13.79 include:_spf.mailspamprotection.com include:_spf.google.com include:sendgrid.net include:web.shared.mysmtp.com include:_spf.simplero.com ~all

✉️ SPF

Policy	Record (elkursus.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:35.214.157.204 +ip4:5.134.13.79 include:_spf.mailspamprotection.com include:_spf.google.com include:sendgrid.net include:web.shared.mysmtp.com include:_spf.simplero.com ~all

📨 DMARC

Policy	Record (_dmarc.elkursus.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100; rua=mailto:re+mfztynmmg5p@dmarc.postmarkapp.com; sp=none; aspf=r;

📬 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)

🔐 DNSSEC93ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2025071801
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

48ms

A

70ms

MX

35ms

AAAA

39ms

TXT

156ms

CAA

54ms

HTTPS

73ms

TLSA

122ms

SOA

0ms

MTA-STS

67ms

DNSSEC

93ms

SRV

72ms

Total

843ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:09:43	843ms	2 NS 1 A 7 MX	🔒 Secure	View
2026-06-23 04:51:51	2803ms	2 NS 1 A 7 MX	🔒 Secure	View
2026-06-22 18:17:30	1104ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 06:55:54	634ms	2 NS 1 A 7 MX	🔒 Secure	View