frontliner.dk

📜 Historical scan 2026-10-03 18:34:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

frontliner.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 28 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.186.164.154 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by smtp.google.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 37ms

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

🌍 A Records#

1 records 24ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.186.164.154	3600s	server7154.serverpark.dk	AS44869	FIBIA P/S	5.186.0.0/16	🇩🇰 Denmark	Frederiksberg

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	142.250.150.26 209.85.233.26 209.85.233.27 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1b 2a00:1450:4010:c01::1b 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b 2a00:1450:4010:c1c::1a 64.233.161.26 64.233.161.27	la-in-f26.1e100.net lr-in-f26.1e100.net lr-in-f27.1e100.net lh-in-x1a.1e100.net lh-in-f26.1e100.net lh-in-x1b.1e100.net lh-in-f27.1e100.net lr-in-x1b.1e100.net lr-in-f27.1e100.net la-in-f26.1e100.net lh-in-f26.1e100.net lh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	5.186.164.154
🔶 Autoconfig	5.186.164.154

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 167ms

TXT Record
google-site-verification=RcBnf7DH7MsBTWOd5SiLTbTF35SHORQpmuAetVYNSyU

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

latest probe, not this scan · checked 2026-10-12 22:04:07

www	5.186.164.154 (AS44869) (address records, no CNAME)
www vs bare domain	Same network frontliner.dk: 5.186.164.154 (AS44869) www.frontliner.dk: 5.186.164.154 (AS44869)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

62ms

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

🏷️ SOA#

28ms

Field	Value
Serial	2026100200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-03 18:43:33

Field	Value
Registrar	Simply.com A/S
Registered	2025-03-28
Expires	2027-03-27 (161d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

24ms

45ms

AAAA

37ms

TXT

167ms

CAA

25ms

HTTPS

34ms

TLSA

73ms

SOA

28ms

MTA-STS

50ms

DNSSEC

62ms

SRV

59ms

Total

553ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 22:04:07	737ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 14:09:34	370ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 07:48:47	2277ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 18:34:50 shown	553ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-22 16:20:02	636ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 23:23:44	507ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-13 17:24:47	25006ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-02 01:41:46	493ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:52:29	610ms	3 NS 1 A 1 MX	🔒 Secure