refibu.dk

📜 Historical scan 2026-09-30 02:54:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

refibu.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 30 November 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by smtp.google.com. The zone is not DNSSEC-signed, 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 38ms

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#

🌍

No A records found

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	2a00:1450:4010:c03::1a 2a00:1450:4010:c03::1a 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b 64.233.162.26 64.233.162.27 64.233.163.26 64.233.163.27 64.233.165.27	lr-in-x1a.1e100.net lr-in-f26.1e100.net lr-in-x1b.1e100.net lr-in-f27.1e100.net lt-in-f26.1e100.net lt-in-x1a.1e100.net lt-in-x1b.1e100.net lt-in-f27.1e100.net li-in-f26.1e100.net li-in-f27.1e100.net lj-in-f26.1e100.net lj-in-f27.1e100.net lg-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 AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 128ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (refibu.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.refibu.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 2026-10-22 04:57:24

www CNAME	ext-cust.squarespace.com (all on squarespace.com) → 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
www vs bare domain	Same network refibu.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) www.refibu.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
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#

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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

111ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

24ms

Field	Value
Serial	2026082409
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 2026-10-19 11:53:47

Field	Value
Registrar	Simply.com A/S
Registered	2022-11-30
Expires	2026-11-29 (33d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

33ms

37ms

AAAA

42ms

TXT

128ms

CAA

40ms

HTTPS

36ms

TLSA

87ms

SOA

24ms

MTA-STS

49ms

DNSSEC

111ms

SRV

55ms

Total

685ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 04:57:24	496ms	3 NS 4 A 1 MX	🔓 Insecure
2026-10-19 11:16:22	939ms	3 NS 4 A 1 MX	🔓 Insecure
2026-10-13 04:48:24	514ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-07 21:58:44	480ms	3 NS 0 A 1 MX	🔓 Insecure
2026-10-02 10:03:48	1290ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-30 09:54:40	464ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-30 02:54:00 shown	685ms	3 NS 0 A 1 MX	🔓 Insecure
2026-09-01 18:05:16	10094ms	3 NS 0 A 0 MX	❓ Unknown
2026-08-25 01:53:50	1633ms	3 NS 0 A 1 MX	🔓 Insecure
2026-08-21 16:10:40	879ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-24 00:31:18	628ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:31:48	2076ms	3 NS 1 A 1 MX	🔓 Insecure