rosborg.dk DNS records

🖥️ Nameservers2 records 66ms

Nameserver	IP addresses	PTR	ASN / ISP
coco.ns.cloudflare.com	108.162.192.104 172.64.32.104 173.245.58.104 2606:4700:50::adf5:3a68 2803:f800:50::6ca2:c068 2a06:98c1:50::ac40:2068	coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sri.ns.cloudflare.com	108.162.193.234 172.64.33.234 173.245.59.234 2606:4700:58::adf5:3bea 2803:f800:50::6ca2:c1ea 2a06:98c1:50::ac40:21ea	sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records4 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	300s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	300s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	300s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	300s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records1 records 90ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	rosborg-dk.mail.protection.outlook.com	2a01:111:f403:ca09::26 2a01:111:f403:ca09::28 2a01:111:f403:ca09::b 2a01:111:f403:ca09::f 52.101.68.16 52.101.68.21 52.101.68.32 52.101.73.126	mail-am8pr83cu00106.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am8pr83cu00106.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	104.21.29.203

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 110ms

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

📝 TXT Records2 records 271ms

TXT Record
apple-domain-verification=aWSegJamRDVj0AeM
v=spf1 include:_spf.mailersend.net include:spf.protection.outlook.com include:_spf.hostonline.dk include:sendgrid.net include:spf.minuba.dk ip4:144.76.98.53 -all

✉️ SPF

Policy	Record (rosborg.dk)
-all (hard fail)	v=spf1 include:_spf.mailersend.net include:spf.protection.outlook.com include:_spf.hostonline.dk include:sendgrid.net include:spf.minuba.dk ip4:144.76.98.53 -all

📨 DMARC

Policy	Record (_dmarc.rosborg.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;

📬 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)

🔐 DNSSEC133ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2411774909
Primary NS (MNAME)	coco.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

66ms

A

40ms

MX

90ms

AAAA

78ms

TXT

271ms

CAA

87ms

HTTPS

110ms

TLSA

662ms

SOA

0ms

MTA-STS

98ms

DNSSEC

133ms

SRV

110ms

Total

1517ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 15:38:43	1517ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-08-26 14:52:41	887ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-08-10 22:35:04	1496ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-07-18 05:34:49	4761ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-07-16 03:08:03	1522ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-07-14 08:44:44	10429ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-06-25 10:29:42	3209ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-06-24 21:30:13	1330ms	2 NS 4 A 1 MX	🔓 Insecure	View
2026-06-17 19:12:49	1512ms	2 NS 4 A 1 MX	🔓 Insecure	View