steff.dk

📜 Historical scan 2026-09-23 16:10:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

steff.dk is a .dk domain served by 2 nameservers (udns1.cscdns.net, udns2.cscdns.uk). It was registered on 15 April 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 52.178.24.186 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by steff-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 135ms

Nameserver	IP addresses	PTR	ASN / ISP
udns1.cscdns.net	2001:502:f3ff::201 204.74.66.1	udns1.cscdns.uk udns1.cscdns.net	AS12008 Vercara, LLC AS12008 Vercara, LLC
udns2.cscdns.uk	2001:502:4612::201 204.74.111.1	edns1.ultradns.org udns2.cscdns.uk	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records#

1 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.178.24.186	300s	—	AS8075	Microsoft Corporation	52.160.0.0/11	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 167ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	steff-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::9 2a01:111:f403:ca09::26 2a01:111:f403:ca3c::8 52.101.103.39 52.101.181.153 52.101.185.114 52.101.91.153	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-matpr04cu00101.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 → 40.104.116.24
🔶 Autoconfig	204.74.99.103

🔷 AAAA Records (IPv6)#

1 records 191ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2603:1020:201:e::c	300s	—	AS8075	Microsoft Corporation	2603:1000:0:0:0:0:0:0/26	🇳🇱 The Netherlands	Amsterdam

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 651ms

TXT Record
MS=ms16117466
v=spf1 ip4:91.239.38.0/23 ip4:50.31.35.114/32 ip4:195.1.188.122/32 include:_netblocks.mimecast.com include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (steff.dk)
~all (soft fail)	v=spf1 ip4:91.239.38.0/23 ip4:50.31.35.114/32 ip4:195.1.188.122/32 include:_netblocks.mimecast.com include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.steff.dk)
p=reject	v=DMARC1; p=reject; pct=100

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 01:21:57

www	52.178.24.186 2603:1020:201:e::c (AS8075) (address records, no CNAME)
www vs bare domain	Same network steff.dk: 52.178.24.186 2603:1020:201:e::c (AS8075) www.steff.dk: 52.178.24.186 2603:1020:201:e::c (AS8075)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-steff-dk._domainkey.danishcrown.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-steff-dk._domainkey.danishcrown.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 10/10 · policy: ~all

warn 10 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

144ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2018082031
Primary NS (MNAME)	udns1.cscdns.net
Responsible (RNAME)	hostmaster@cscdns.net
Refresh	10800s
Retry	5400s
Expire	3600000s
Minimum (neg-cache TTL)	14400s

📋 Registration#

WHOIS fetched 2026-10-06 13:49:29

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	1997-04-15
Expires	2027-06-30 (253d)

📋 WHOIS#

⏱️ Lookup Timing#

135ms

88ms

167ms

AAAA

191ms

TXT

651ms

CAA

127ms

HTTPS

155ms

TLSA

168ms

SOA

0ms

MTA-STS

120ms

DNSSEC

144ms

SRV

598ms

Total

1675ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 13:43:10	1494ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-03 13:06:47	1040ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 21:10:56	1236ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-23 16:10:51 shown	1675ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-29 08:21:00	1547ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 17:53:21	953ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 05:40:46	907ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 07:20:28	1922ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 00:33:46	903ms	2 NS 1 A 1 MX	🔓 Insecure