skat.dk DNS records

🖥️ Nameservers6 records 149ms

Nameserver	IP addresses	PTR	ASN / ISP
df-ns01.skat.dk	147.29.150.31	df-ns01.skat.dk	AS3292 TDC Holding A/S
df-ns02.skat.dk	147.29.151.254	df-ns02.skat.dk	AS3292 TDC Holding A/S
df-ns03.skat.dk	147.29.150.31	df-ns01.skat.dk	AS3292 TDC Holding A/S
df-ns04.skat.dk	147.29.151.254	df-ns02.skat.dk	AS3292 TDC Holding A/S
ns1-auth.csc.dk	147.29.236.25 2a01:5440:2:0:147:29:236:25	ns1-auth.csc.dk —	AS29156 DXC Technology Danmark A/S AS29156 DXC Technology Danmark A/S
ns2-auth.csc.dk	147.29.238.25 2a01:5440:2:2000:147:29:238:25	ns2-auth.csc.dk —	AS29156 DXC Technology Danmark A/S AS29156 DXC Technology Danmark A/S

🌍 A Records2 records 95ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.107.213.53	120s	—	AS8075	Microsoft Corporation	13.107.192.0/19	🇺🇸 United States	—
13.107.246.53	120s	—	AS8075	Microsoft Corporation	13.107.240.0/21	🇺🇸 United States	—

📧 MX Records1 records 131ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1800s	skat-dk.e-v1.mx.microsoft	2a01:111:f403:ca04:: 2a01:111:f403:ca09::3 2a01:111:f403:ca09::7 2a01:111:f403:ca09::d 52.101.68.0 52.101.68.16 52.101.73.12 52.101.73.6	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 261ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	0	5061	sipfed.online.lync.com

📝 TXT Records7 records 501ms

TXT Record
_globalsign-domain-verification=SDO1mi3Vhsk0V1ROq6Ti13bgOoz0bORtTA_Mwimp9N
6pnkQeO2KpskXIsNNabjYMKmEfl0jq5yfHMZxu3OAzw=
apple-domain-verification=w1x2I7SOS2RhFAY4
google-site-verification=6bJBWCLiBTyiYQHYSoHwYBLMa35bPu7sKtDpRoi-Zz4
MS=ms89961653
SKAT
v=spf1 ip4:147.29.109.227 ip4:147.29.150.227 ip4:85.119.135.105 ip4:85.119.135.96 ip4:147.29.27.196 ip4:185.150.75.24 ip4:207.54.71.162 ip4:207.54.72.99 ip6:2620:101:2011:300::1a ip6:2620:101:2012:300::1a include:spf.protection.outlook.com include:_spf.operate.skat.dk -all

✉️ SPF

Policy	Record (skat.dk)
-all (hard fail)	v=spf1 ip4:147.29.109.227 ip4:147.29.150.227 ip4:85.119.135.105 ip4:85.119.135.96 ip4:147.29.27.196 ip4:185.150.75.24 ip4:207.54.71.162 ip4:207.54.72.99 ip6:2620:101:2011:300::1a ip6:2620:101:2012:300::1a include:spf.protection.outlook.com include:_spf.operate.skat.dk -all

📨 DMARC

Policy	Record (_dmarc.skat.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:fd0c97ad@in.mailhardener.com; ruf=mailto:fd0c97ad@in.mailhardener.com

📬 MTA-STS524ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20190601000000Z
max_age	1209600s
Policy MX	skat-dk.e-v1.mx.microsoft

📈 TLSRPT

Status	Report address (rua)
✓ Enabled	mailto:tlsrpt@in.mailhardener.com

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE4 records 190ms

Service / Owner	Type	Cert association
SMTP _25._tcp.skat-dk.e-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…
SMTP _25._tcp.skat-dk.e-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.skat-dk.e-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.skat-dk.e-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…

🔐 DNSSEC329ms

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

🏷️ SOA0ms

Field	Value
Serial	2026098392
Primary NS (MNAME)	df-ns01.skat.dk
Responsible (RNAME)	hostmaster@csc.dk
Refresh	14400s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

149ms

A

95ms

MX

131ms

AAAA

100ms

TXT

501ms

CAA

109ms

HTTPS

92ms

TLSA

190ms

SOA

0ms

MTA-STS

524ms

DNSSEC

329ms

SRV

261ms

Total

6407ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 10:12:39	6407ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-30 08:42:02	3402ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-08-29 04:50:18	1909ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-28 03:59:24	765ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-26 21:46:31	782ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-25 19:33:30	1636ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-24 13:58:17	2125ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-23 02:10:04	1933ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-22 02:06:33	7091ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-21 02:02:08	2676ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-20 00:26:45	10435ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-18 23:46:32	2174ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-17 12:31:35	2047ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-16 11:50:22	2186ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-15 08:05:03	1838ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-14 01:13:40	6545ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-12 13:03:58	1640ms	6 NS 2 A 1 MX	🔒 Secure	View
2026-08-11 01:29:05	14090ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-08-08 11:36:21	2311ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 10:35:05	2197ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-07-29 21:53:12	3374ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 10:28:25	33804ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 09:55:57	2075ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 09:36:46	2557ms	6 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 09:24:33	2140ms	6 NS 1 A 1 MX	🔒 Secure	View