duf-rejser.dk

📜 Historical scan 2026-10-01 06:31:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

duf-rejser.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 194.103.128.37 is hosted by Vitec Software Group AB (AS197332) in Sweden. Mail is handled by mx.spamfilter.io. 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#

3 records 31ms

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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
194.103.128.37	600s	37-128.vitec.se	AS197332	Vitec Software Group AB	194.103.128.0/23	🇸🇪 Sweden	—

📧 MX Records#

1 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1830s	mx.spamfilter.io	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscoverredirect.webexchange.nu → 212.237.249.80

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 127ms

TXT Record
facebook-domain-verification=8fx4xd7g6wzk9o2uy5881kxjfg9w0g
google-site-verification=9pnG188ZM8z30ghPWCiZVmjEBER59QTxss-cP-XKuPo
tiktok-developers-site-verification=fPg8Tx5DbprPGHVpPlTddW5Q0ResZagC
v=spf1 include:spf.curanet.dk include:emsd1.com include:servers.mcsv.net include:spf.mandrillapp.com include:mailgun.org include:mail.zendesk.com ~all

✉️ SPF#

Policy	Record (duf-rejser.dk)
~all (soft fail)	v=spf1 include:spf.curanet.dk include:emsd1.com include:servers.mcsv.net include:spf.mandrillapp.com include:mailgun.org include:mail.zendesk.com ~all

📨 DMARC#

Policy	Record (_dmarc.duf-rejser.dk)
p=none (monitor only)	v=DMARC1;p=none;

📬 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 12:29:59

www CNAME	asp.nordicinvasion.travelize.se (all on travelize.se) → 194.103.128.37 (AS197332)
www vs bare domain	Same network duf-rejser.dk: 194.103.128.37 (AS197332) www.duf-rejser.dk: 194.103.128.37 (AS197332)
Wildcard	No
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

✍️ DKIM keys#

2 found

Selector	CNAME	Key
k1	dkim.mcsv.net	RSA · ~1024 bit below 2048 bit
s1	—	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: 12/10 · policy: ~all

error 12 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔗 TLSA / DANE#

1 records 139ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.spamfilter.io	DANE-EE · SPKI · SHA-256	9A25F05F2E322DABDCC9B7A06AB47A2D…

🔐 DNSSEC#

97ms

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

🏷️ SOA#

38ms

Field	Value
Serial	2026093000
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

31ms

38ms

28ms

AAAA

31ms

TXT

127ms

CAA

39ms

HTTPS

28ms

TLSA

139ms

SOA

38ms

MTA-STS

43ms

DNSSEC

97ms

SRV

48ms

Total

604ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 12:29:59	518ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 06:31:36 shown	604ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 02:14:10	640ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 01:11:50	548ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-01 16:26:30	694ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 16:01:11	756ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-01 20:35:00	9069ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 10:27:28	711ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 04:55:10	750ms	3 NS 1 A 1 MX	🔒 Secure