jensbyskov.dk DNS records

🖥️ Nameservers2 records 47ms

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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.152.165	3600s	—	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records2 records 38ms

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 Records3 records 155ms

TXT Record
MS=ms71071859
v=spf1 a include:spf.curanet.dk ip4:199.244.76.0/24 ip4:207.126.101.0/24 include:spf.protection.outlook.com +ip4:116.202.130.105 include:spf.nomilk.dk ~all
v=spf1 include:spf.onlinemail.io ?all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (jensbyskov.dk)
~all (soft fail)	v=spf1 a include:spf.curanet.dk ip4:199.244.76.0/24 ip4:207.126.101.0/24 include:spf.protection.outlook.com +ip4:116.202.130.105 include:spf.nomilk.dk ~all
?all (neutral)	v=spf1 include:spf.onlinemail.io ?all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC72ms

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

🏷️ SOA0ms

Field	Value
Serial	2026071301
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

47ms

A

49ms

MX

38ms

AAAA

47ms

TXT

155ms

CAA

48ms

HTTPS

49ms

TLSA

53ms

SOA

0ms

MTA-STS

66ms

DNSSEC

72ms

SRV

60ms

Total

477ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 08:10:38	477ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-15 19:22:21	948ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-08 15:25:59	909ms	2 NS 1 A 2 MX	🔓 Insecure	View
2026-07-06 13:59:54	1757ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-04 17:13:20	3168ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-19 13:50:04	826ms	2 NS 1 A 2 MX	⚠️ Bogus	View
2026-06-17 15:05:14	493ms	2 NS 1 A 2 MX	🔒 Secure	View