trundfri.dk

📜 Historical scan 2026-06-17 23:24:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

trundfri.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 17 December 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.204 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, publishes a 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#

2 records 71ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.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.curanet.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 72ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.204	—	linux27.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

7 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	108.177.14.26 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1a	lt-in-f26.1e100.net lh-in-f26.1e100.net lh-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1a	lcbomp-in-f26.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	alt4.aspmx.l.google.com	192.178.230.27 2404:6800:400b:c01b::1b	yunrtab-in-f27.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	—	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 201ms

TXT Record
v=spf1 +a +mx +ip4:35.214.184.173 include:_spf.google.com include:servers.mcsv.net include:trundfri.dk.spf.auto.dnssmarthost.net ~all
v=spf1 include:spf.onlinemail.io -all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (trundfri.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:35.214.184.173 include:_spf.google.com include:servers.mcsv.net include:trundfri.dk.spf.auto.dnssmarthost.net ~all
-all (hard fail)	v=spf1 include:spf.onlinemail.io -all

📨 DMARC#

Policy	Record (_dmarc.trundfri.dk)
p=none (monitor only)	v=DMARC1; p=none; aspf=r; adkim=r;

📬 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 2026-10-09 09:18:59

www	185.21.40.204 (AS48854) (address records, no CNAME)
www vs bare domain	Same network trundfri.dk: 185.21.40.204 (AS48854) www.trundfri.dk: 185.21.40.204 (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#

1 found

Selector	CNAME	Key
google	—	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: 5/10 · policy: ~all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)
error include:trundfri.dk.spf.auto.dnssmarthost.net has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

208ms

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

🏷️ SOA#

70ms

Field	Value
Serial	2025041401
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-09 19:45:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-12-17
Expires	2026-12-31 (73d)

📋 WHOIS#

⏱️ Lookup Timing#

71ms

72ms

71ms

AAAA

74ms

TXT

201ms

CAA

81ms

HTTPS

75ms

TLSA

176ms

SOA

70ms

MTA-STS

129ms

DNSSEC

208ms

SRV

4018ms

Total

4839ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 09:18:59	1699ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-03 01:05:24	510ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-24 08:20:02	793ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-06 20:38:43	1131ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-02 13:22:06	2881ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-25 19:13:02	2370ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-21 05:43:14	651ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-21 02:50:46	2608ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-20 23:57:12	1051ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 23:24:16 shown	4839ms	2 NS 1 A 7 MX	🔒 Secure