sebra.dk

📜 Historical scan 2026-10-03 07:11:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sebra.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 August 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.227.38.65 is hosted by Cloudflare, Inc. (AS13335) in Canada. Mail is handled by sebra-dk.mail.protection.outlook.com. 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 49ms

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 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.227.38.65	600s	myshopify.com	AS13335	Cloudflare, Inc.	23.227.38.0/23	🇨🇦 Canada	Ottawa

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sebra-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca09::20 2a01:111:f403:ca09::24 2a01:111:f403:ca38::8 52.101.103.36 52.101.181.156 52.101.68.12 52.101.91.21	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-matpr05cu00105.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

🔌 SRV Records#

1 records 76ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	10	5061	sipfed.online.lync.com

📝 TXT Records#

5 records 186ms

TXT Record
klaviyo-site-verification=RRguqW
klaviyo-site-verification=TCCBQb
klaviyo-site-verification=XfPDkc
MS=ms24492021
v=spf1 ip4:52.232.62.100 ip4:95.154.48.108 ip4:185.40.46.4 ip4:185.66.2.115 include:spf.protection.outlook.com include:shops.shopify.com -all

✉️ SPF#

Policy	Record (sebra.dk)
-all (hard fail)	v=spf1 ip4:52.232.62.100 ip4:95.154.48.108 ip4:185.40.46.4 ip4:185.66.2.115 include:spf.protection.outlook.com include:shops.shopify.com -all

📨 DMARC#

Policy	Record (_dmarc.sebra.dk)
p=reject	v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=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 2026-10-23 00:51:15

www	23.227.38.65 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sebra.dk: 23.227.38.65 (AS13335) www.sebra.dk: 23.227.38.65 (AS13335)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-sebra-dk._domainkey.sebradk.onmicrosoft.com	RSA · ~1024 bit below 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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

65ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2026092101
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 2026-10-20 09:15:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-08-11
Expires	2027-09-30 (340d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
leander.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

49ms

48ms

36ms

AAAA

61ms

TXT

186ms

CAA

58ms

HTTPS

42ms

TLSA

640ms

SOA

29ms

MTA-STS

52ms

DNSSEC

65ms

SRV

76ms

Total

1153ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 00:51:15	566ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-20 08:47:26	1296ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-19 06:30:44	754ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-16 04:18:46	1189ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 01:04:44	1088ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 07:11:48 shown	1153ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 16:55:14	1496ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 12:23:36	1553ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 11:43:15	1402ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 06:43:53	1129ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 21:11:11	1935ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 00:28:50	1328ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-11 03:39:39	7175ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 09:10:47	804ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 16:43:07	1226ms	2 NS 1 A 1 MX	🔒 Secure