service-course.dk DNS records

🖥️ Nameservers2 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.yayhosting.dk	195.242.130.62 2001:67c:564:fffe::100	ns1.yayhosting.dk —	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.yayhosting.dk	2a00:1b18:2:3:1::2 62.69.152.35	ns2.yayhosting.dk ns2.yayhosting.dk	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.158.234.103	14400s	103-234-158-51.instances.scw.cloud	AS12876	Scaleway SAS	51.158.0.0/15	🇳🇱 The Netherlands	Haarlem

📧 MX Records1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	servicecourse-dk01i.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::d 2a01:111:f403:ca09::6 2a01:111:f403:ca09::c 52.101.68.10 52.101.68.36 52.101.73.26 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.62.232
🔶 Autoconfig	195.242.130.60

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 167ms

TXT Record
v=spf1 ip4:195.242.130.60 ip4:87.61.100.188 include:_spf.yayhosting.dk include:spf.protection.outlook.com include:_spf.tem.scaleway.com -all

✉️ SPF

Policy	Record (service-course.dk)
-all (hard fail)	v=spf1 ip4:195.242.130.60 ip4:87.61.100.188 include:_spf.yayhosting.dk include:spf.protection.outlook.com include:_spf.tem.scaleway.com -all

📨 DMARC

Policy	Record (_dmarc.service-course.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

✗ No CAA records — any CA may issue certificates

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.service-course.dk	EXMihAtz2ZX9z5DF8mCTNV0RhAd7OPAoWmq7XIC8K_Y

🔗 TLSA / DANE

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

🔐 DNSSEC125ms

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

🏷️ SOA0ms

Field	Value
Serial	2026071703
Primary NS (MNAME)	ns1.yayhosting.dk
Responsible (RNAME)	drift@yayhosting.dk
Refresh	3600s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

36ms

A

40ms

MX

42ms

AAAA

53ms

TXT

167ms

CAA

36ms

HTTPS

36ms

TLSA

1173ms

SOA

0ms

MTA-STS

139ms

DNSSEC

125ms

SRV

128ms

Total

18030ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-18 21:56:44	18030ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-17 18:08:49	3200ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-22 04:58:25	1470ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 19:03:57	1528ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 13:37:44	1828ms	2 NS 1 A 1 MX	🔓 Insecure	View