mercura.dk DNS records

🖥️ Nameservers2 records 151ms

Nameserver	IP addresses	PTR	ASN / ISP
jay.ns.cloudflare.com	108.162.193.123 172.64.33.123 173.245.59.123 2606:4700:58::adf5:3b7b 2803:f800:50::6ca2:c17b 2a06:98c1:50::ac40:217b	jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lina.ns.cloudflare.com	108.162.192.187 172.64.32.187 173.245.58.187 2606:4700:50::adf5:3abb 2803:f800:50::6ca2:c0bb 2a06:98c1:50::ac40:20bb	lina.ns.cloudflare.com lina.ns.cloudflare.com lina.ns.cloudflare.com lina.ns.cloudflare.com lina.ns.cloudflare.com lina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 130ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.28.253	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.147.240	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 155ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mercura-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca04::e 2a01:111:f403:ca09::4 2a01:111:f403:ca09::5 52.101.68.16 52.101.68.27 52.101.68.29 52.101.73.6	mail-db6pr03cu00105.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-dbapr03cu00105.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	57.129.84.98
🔶 Autoconfig	57.129.84.98

🔷 AAAA Records (IPv6)2 records 161ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:1cfd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:93f0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 151ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.28.253,172.67.147.240 ech=AEX+DQBBLQAgACAxQqjtKV8aN6XxFvuDitIIktkPDIJnbKcXPyGbTEl4ewAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1cfd,2606:4700:3035::ac43:93f0

📝 TXT Records5 records 363ms

TXT Record
_dmarc.mercura.dk
google-site-verification=Ba_nePzJjF5wcFMFPHRZZlxJGg5AjBISkosuQCWvLW8
MS=ms41689367
v=spf1 +a +mx include:_custspf.one.com include:spf.protection.outlook.com ip4: 94.237.100.247 -all
v=spf1 +a +mx include:_custspf.one.com include:spf.protection.outlook.com ip4:94.237.100.247 -all

✉️ SPF

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

Policy	Record (mercura.dk)
-all (hard fail)	v=spf1 +a +mx include:_custspf.one.com include:spf.protection.outlook.com ip4: 94.237.100.247 -all
-all (hard fail)	v=spf1 +a +mx include:_custspf.one.com include:spf.protection.outlook.com ip4:94.237.100.247 -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)

🔐 DNSSEC276ms

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

🏷️ SOA0ms

Field	Value
Serial	2413022437
Primary NS (MNAME)	jay.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

151ms

A

130ms

MX

155ms

AAAA

161ms

TXT

363ms

CAA

123ms

HTTPS

151ms

TLSA

427ms

SOA

0ms

MTA-STS

154ms

DNSSEC

276ms

SRV

155ms

Total

3705ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-24 12:08:52	3705ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-19 05:58:57	3283ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-27 07:58:42	1412ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-25 09:36:44	1014ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 09:44:31	1124ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 02:01:04	14537ms	2 NS 2 A 1 MX	🔓 Insecure	View