frimon-serup.dk

Records from scan: 2026-10-07 15:29:05 · 3363ms total · last checked 2026-10-18 06:21 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

frimon-serup.dk is a .dk domain served by 2 nameservers (ns1.dnsserver.dk, ns2.dnsserver.dk). It was registered on 12 April 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.191 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by frimonserup-dk01e.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 231ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dnsserver.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.dnsserver.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 Records#

1 records 207ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.191	700s	mysql3.scannet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 187ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	700s	frimonserup-dk01e.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::a 2a01:111:f403:ca09::20 2a01:111:f403:ca48::8 52.101.181.156 52.101.68.15 52.101.68.21 52.101.91.156	mail-db4pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-maspr04cu00104.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 → 52.98.154.136
🔶 Autoconfig	185.21.40.191

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 463ms

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

📝 TXT Records#

1 records 594ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (frimon-serup.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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

🧩 Web & zone#

checked 2026-10-07 15:29:06

www	185.21.40.191 (AS48854) (address records, no CNAME)
www vs bare domain	Same network frimon-serup.dk: 185.21.40.191 (AS48854) www.frimon-serup.dk: 185.21.40.191 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-frimonserup-dk01e._domainkey.dw1arkitektserupdk.n-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-frimonserup-dk01e._domainkey.dw1arkitektserupdk.n-v1.dkim.mail.microsoft	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

379ms

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

🏷️ SOA#

75ms

Field	Value
Serial	2026100601
Primary NS (MNAME)	ns1.dnsserver.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-07 15:42:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-04-12
Expires	2027-06-30 (254d)

📋 WHOIS#

⏱️ Lookup Timing#

231ms

207ms

187ms

AAAA

210ms

TXT

594ms

CAA

220ms

HTTPS

231ms

TLSA

1355ms

SOA

75ms

MTA-STS

269ms

DNSSEC

379ms

SRV

463ms

Total

3363ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 15:29:05 shown	3363ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-30 05:42:21	1399ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 07:22:58	1068ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-21 10:43:29	765ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:30:32	1000ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:26:20	1506ms	2 NS 1 A 1 MX	🔒 Secure