sækken.dk DNS records

🖥️ Nameservers4 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	xnskkensra-dk0m1c.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca09::1 2a01:111:f403:ca09::8 2a01:111:f403:ca09::9 52.101.209.153 52.101.68.10 52.101.73.19 52.101.73.6	mail-db7pr03cu00401.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.40
🔶 Autoconfig	185.21.40.121

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 157ms

TXT Record
MS=ms45091739
v=spf1 a ptr ip4:185.21.40.121 include:spf.protection.outlook.com include:postfilter.dk include:web.shared.mysmtp.com -all

✉️ SPF

Policy	Record (sækken.dk)
-all (hard fail)	v=spf1 a ptr ip4:185.21.40.121 include:spf.protection.outlook.com include:postfilter.dk include:web.shared.mysmtp.com -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)

🔐 DNSSEC86ms

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

🏷️ SOA0ms

Field	Value
Serial	2024101000
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

39ms

MX

34ms

AAAA

51ms

TXT

157ms

CAA

38ms

HTTPS

38ms

TLSA

176ms

SOA

0ms

MTA-STS

70ms

DNSSEC

86ms

SRV

63ms

Total

704ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 03:44:52	704ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 16:23:51	4825ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 12:04:08	1221ms	4 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-25 10:53:26	304ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 13:15:29	2052ms	4 NS 1 A 1 MX	🔒 Secure	View