sebra.dk DNS records

🖥️ Nameservers2 records 690ms

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 Records1 records 39ms

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 Records1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sebra-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::a 2a01:111:f403:ca09::b 2a01:111:f403:ca48::a 52.101.68.10 52.101.68.29 52.101.73.16 52.101.73.6	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 72ms

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

📝 TXT Records5 records 205ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC104ms

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

🏷️ SOA0ms

Field	Value
Serial	2026032501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

690ms

A

39ms

MX

40ms

AAAA

56ms

TXT

205ms

CAA

53ms

HTTPS

63ms

TLSA

595ms

SOA

0ms

MTA-STS

82ms

DNSSEC

104ms

SRV

72ms

Total

1935ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 21:11:11	1935ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 00:28:50	1328ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 03:39:39	7175ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 09:10:47	804ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 16:43:07	1226ms	2 NS 1 A 1 MX	🔒 Secure	View