xlearn.dk DNS records

🖥️ Nameservers2 records 42ms

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 63ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.111.241.79	3600s	webcluster1.wordpresspod2-cph3.one.com	AS51468	One.com A/S	77.111.240.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	xlearn-dk.mail.protection.outlook.com	2a01:111:f403:ca09::20 2a01:111:f403:ca09::7 2a01:111:f403:ca09::e 2a01:111:f403:ca48::c 52.101.68.32 52.101.73.12 52.101.73.153 52.101.73.4	mail-as8pr05cu00400.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.40
🔶 Autoconfig	77.111.241.79

🔷 AAAA Records (IPv6)1 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:104:79:483d:848f:3054	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 195ms

TXT Record
facebook-domain-verification=5bgi3o2vr20cbvwseqv5xrcju2mbxs
google-site-verification=W8aVLxl9NjoW-1ZpKTFhzH8Rby3_jPAuUSakFBonSpk
v=spf1 include:sendgrid.net ~all
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (xlearn.dk)
~all (soft fail)	v=spf1 include:sendgrid.net ~all
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.xlearn.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100; rua=mailto:re+hcdldblnmu1@dmarc.postmarkapp.com; sp=none; 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)

🔐 DNSSEC87ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082505
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 RegistrationWHOIS fetched 2026-06-26 15:45:18

Field	Value
Registrar	ONE.COM A/S
Registered	2023-07-13
Expires	2026-07-12 (expired)

📋 WHOIS

⏱️ Lookup Timing

NS

42ms

A

63ms

MX

51ms

AAAA

56ms

TXT

195ms

CAA

49ms

HTTPS

56ms

TLSA

439ms

SOA

0ms

MTA-STS

65ms

DNSSEC

87ms

SRV

70ms

Total

1014ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 13:45:59	1014ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 02:01:51	850ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-05 14:56:45	9430ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 15:41:55	642ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 03:52:00	1213ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:07:46	1059ms	2 NS 1 A 1 MX	🔒 Secure	View