first.dk DNS records

🖥️ Nameservers2 records 36ms

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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.225.90.75	3600s	ns1.cortexconsult.dk ns2.cortexconsult.dk	AS31709	Cortex Consult A/S	195.225.88.0/22	🇩🇰 Denmark	Hvidovre

📧 MX Records1 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	first-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::c 2a01:111:f403:ca04::f 2a01:111:f403:ca09::d 52.101.68.0 52.101.68.12 52.101.68.21 52.101.68.27	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00503.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 → 40.104.116.40
🔶 Autoconfig	195.225.90.75

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 66ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records6 records 149ms

TXT Record
_globalsign-domain-verification=RiYyOwELDF4t0QRhnSxTyJGRkPhYfs3Yu8U2t764T9
gkm5pmww798w24jy9kdkr48wghk3vvk7
google-site-verification=NWYp_f_LPfU9RcgEMAcn6kVxky7d3TgDMhUdwODUy9g
MS=ms11704022
q0hr85nrplsdq2nsn7rprr5qvpwxgkyc
v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com ip4:185.150.199.46 -all

✉️ SPF

Policy	Record (first.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com ip4:185.150.199.46 -all

📨 DMARC

Policy	Record (_dmarc.first.dk)
p=reject	v=DMARC1; p=reject;rua=mailto:tjmpklk7@ag.eu.dmarcian.com; ruf=mailto:tjmpklk7@fr.eu.dmarcian.com

📬 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)

🔐 DNSSEC80ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082001
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

36ms

A

42ms

MX

57ms

AAAA

61ms

TXT

149ms

CAA

59ms

HTTPS

45ms

TLSA

658ms

SOA

0ms

MTA-STS

74ms

DNSSEC

80ms

SRV

66ms

Total

1437ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 02:33:58	1437ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 18:39:51	1032ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 06:32:35	17624ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 06:01:40	2269ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 08:40:54	1124ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 17:05:36	1318ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 12:29:08	1185ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 16:11:59	2174ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 03:15:28	1871ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 02:39:47	1093ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 19:41:59	704ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:13:51	2805ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:08:44	1100ms	2 NS 1 A 1 MX	🔒 Secure	View