crossjoin.dk DNS records

🖥️ Nameservers2 records 20ms

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 24ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.111.240.212	3600s	webcluster1.wordpresspod1-cph3.one.com	AS51468	One.com A/S	77.111.240.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	crossjoin-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09:: 2a01:111:f403:ca09::20 2a01:111:f403:ca09::d 52.101.68.0 52.101.68.29 52.101.68.39 52.101.73.4	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00607.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

🔷 AAAA Records (IPv6)1 records 24ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:101:a2:f5c8:6d1d:752d	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 Records3 records 115ms

TXT Record
MS=E527D4658F48656EA8B2648F7DD722E15018B465
v=spf1 include:_spf.herodesk-mails.io ~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 (crossjoin.dk)
~all (soft fail)	v=spf1 include:_spf.herodesk-mails.io ~all
-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

🔗 TLSA / DANE

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

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083105
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

20ms

A

24ms

MX

28ms

AAAA

24ms

TXT

115ms

CAA

31ms

HTTPS

28ms

TLSA

763ms

SOA

0ms

MTA-STS

34ms

DNSSEC

99ms

SRV

93ms

Total

1277ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 20:24:35	1277ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 04:25:57	1368ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 20:36:23	2803ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-05 08:16:04	1293ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-02 05:56:25	9340ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-30 03:43:56	2937ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-28 12:48:09	5734ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 07:59:53	1740ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 07:41:15	3109ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 07:07:00	8935ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 05:53:45	1253ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 04:40:56	1485ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 01:58:42	4294ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 00:24:58	1056ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 19:21:29	1830ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 09:58:00	2101ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 09:00:42	1101ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-13 12:56:27	9083ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 17:39:40	9567ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-05 12:29:20	1411ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 21:31:54	1160ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 15:34:34	739ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 08:29:02	833ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 22:17:11	857ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 23:57:16	816ms	2 NS 1 A 1 MX	🔒 Secure	View