coreline.dk DNS records

🖥️ Nameservers2 records 62ms

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 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
8.209.103.215	21600s	—	AS45102	Alibaba (US) Technology Co., Ltd.	8.209.96.0/20	🇩🇪 Germany	Frankfurt am Main

📧 MX Records1 records 68ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	coreline-dk.mail.protection.outlook.com	2a01:111:f403:ca09::1 2a01:111:f403:ca09::4 2a01:111:f403:ca09::9 2a01:111:f403:ca09::f 52.101.68.12 52.101.68.8 52.101.73.26 52.101.73.6	mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.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 → 40.104.116.24
🔶 Autoconfig	8.209.103.215

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 129ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 194ms

TXT Record
google-site-verification=wcXTNNqBqT4dlJYQAeCt-VMNxMCTyy2oFEtbJ8Brna4
MS=ms10704137
v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:mailmailmail.net -all

✉️ SPF

Policy	Record (coreline.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:mailmailmail.net -all

📨 DMARC

Policy	Record (_dmarc.coreline.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@coreline.dk;

📬 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)

🔐 DNSSEC236ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081001
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

62ms

A

76ms

MX

68ms

AAAA

65ms

TXT

194ms

CAA

71ms

HTTPS

76ms

TLSA

295ms

SOA

0ms

MTA-STS

79ms

DNSSEC

236ms

SRV

129ms

Total

1386ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-10 19:59:34	1386ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 18:06:48	1279ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 23:55:49	3289ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 00:00:28	1459ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:25:36	780ms	2 NS 1 A 1 MX	🔒 Secure	View