sibola.dk

📜 Historical scan 2026-10-08 20:06:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sibola.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 February 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 141.138.138.33 is hosted by Signet B.V. (AS20857) in The Netherlands. Mail is handled by sibola-dk.mail.protection.outlook.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#

2 records 455ms

Nameserver	IP addresses	PTR	ASN / 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 404ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
141.138.138.33	3600s	141-138-138-33.colo.transip.net	AS20857	Signet B.V.	141.138.136.0/21	🇳🇱 The Netherlands	—

📧 MX Records#

1 records 100ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sibola-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::e 2a01:111:f403:ca21::e 2a01:111:f403:ca38::8 52.101.209.31 52.101.73.153 52.101.91.159 52.101.91.162	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-matpr04cu00207.inbound.protection.outlook.com mail-matpr04cu00302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 739ms

TXT Record
MS=ms46399396
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (sibola.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 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 2026-10-13 06:20:22

www	141.138.138.33 (AS20857) (address records, no CNAME)
www vs bare domain	Same network sibola.dk: 141.138.138.33 (AS20857) www.sibola.dk: 141.138.138.33 (AS20857)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-sibola-dk._domainkey.sibola.r-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-sibola-dk._domainkey.sibola.r-v1.dkim.mail.microsoft	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#

612ms

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

🏷️ SOA#

174ms

Field	Value
Serial	2026100801
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-07 20:21:56

Field	Value
Registrar	ONE.COM A/S
Registered	1999-02-23
Expires	2027-03-31 (157d)

📋 WHOIS#

⏱️ Lookup Timing#

455ms

404ms

100ms

AAAA

387ms

TXT

739ms

CAA

336ms

HTTPS

486ms

TLSA

1194ms

SOA

174ms

MTA-STS

422ms

DNSSEC

612ms

SRV

504ms

Total

3604ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 06:20:22	1255ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 20:06:57 shown	3604ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 20:04:20	1534ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 14:50:18	1028ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 21:02:49	1727ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 11:36:38	738ms	2 NS 1 A 1 MX	🔒 Secure