seffiber.dk

📜 Historical scan 2026-10-01 03:54:31  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

seffiber.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 April 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.148 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by web6.netplads.dk. 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#

2 records   45ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   37ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.41.148 3600s linux101.curanet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —

📧 MX Records#

1 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s web6.netplads.dk 91.221.196.224 — AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ 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 2026-10-09 04:51:59
www185.21.41.148 (AS48854) (address records, no CNAME)
www vs bare domainSame network
seffiber.dk: 185.21.41.148 (AS48854)
www.seffiber.dk: 185.21.41.148 (AS48854)
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

83ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

62ms
FieldValue
Serial2026092101
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-03 04:27:12
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2020-04-23
Expires2027-04-30 (194d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
45ms
A
37ms
MX
39ms
AAAA
49ms
TXT
186ms
CAA
55ms
HTTPS
64ms
TLSA
88ms
SOA
62ms
MTA-STS
58ms
DNSSEC
83ms
SRV
64ms
Total
576ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-03 04:03:59 978ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-01 03:54:31 shown 576ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-23 10:18:21 871ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-04 23:31:28 1140ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-02 02:01:10 8642ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-01 02:28:16 535ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-19 17:52:48 780ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 13:52:49 1657ms 2 NS 1 A 1 MX 🔒 Secure
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