steel-function.dk DNS records

🖥️ Nameservers2 records 27ms

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 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.12	3600s	prolinux100.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	steelfunction-dk01c.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::5 2a01:111:f403:ca04::e 2a01:111:f403:ca09::e 52.101.73.1 52.101.73.12 52.101.73.4 52.101.73.8	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 122ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:smtprelay.dandomain.dk include:spf.curanet.dk ip4:46.36.207.84 -all

✉️ SPF

Policy	Record (steel-function.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:smtprelay.dandomain.dk include:spf.curanet.dk ip4:46.36.207.84 -all

📨 DMARC

Policy	Record (_dmarc.steel-function.dk)
p=reject	v=DMARC1; p=reject;

📬 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)

🔐 DNSSEC53ms

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

🏷️ SOA0ms

Field	Value
Serial	2026071001
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

27ms

A

28ms

MX

25ms

AAAA

16ms

TXT

122ms

CAA

28ms

HTTPS

25ms

TLSA

182ms

SOA

0ms

MTA-STS

37ms

DNSSEC

53ms

SRV

101ms

Total

1047ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 22:55:36	1166ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 05:18:00	1047ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 22:12:49	25351ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 06:07:56	2071ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 05:20:05	1125ms	2 NS 1 A 1 MX	🔒 Secure	View