holdbar-rr.dk DNS records

🖥️ Nameservers2 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
crystal.ns.cloudflare.com	108.162.194.202 162.159.38.202 172.64.34.202 2606:4700:50::a29f:26ca 2803:f800:50::6ca2:c2ca 2a06:98c1:50::ac40:22ca	crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
pablo.ns.cloudflare.com	108.162.193.220 172.64.33.220 173.245.59.220 2606:4700:58::adf5:3bdc 2803:f800:50::6ca2:c1dc 2a06:98c1:50::ac40:21dc	pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.93.130	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.210.44	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holdbarrr-dk01i.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.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)2 records 67ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:d22c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5d82	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 46ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.93.130,172.67.210.44 ech=AEX+DQBBMgAgACAyKj91O2q6RdL0qFlcWTlYaj3BJo8nhoftP0Z2uI4/YwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d22c,2606:4700:3036::6815:5d82

📝 TXT Records3 records 198ms

TXT Record
google-site-verification=GYfa6qO-dUlfnT89n4thPXdhvcqAeWNarPbjo3jr5fA
MS=ms71090701
v=spf1 include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (holdbar-rr.dk)
~all (soft 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)

🔐 DNSSEC114ms

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	2411787205
Primary NS (MNAME)	crystal.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

52ms

A

44ms

MX

46ms

AAAA

67ms

TXT

198ms

CAA

60ms

HTTPS

46ms

TLSA

610ms

SOA

0ms

MTA-STS

75ms

DNSSEC

114ms

SRV

82ms

Total

1501ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 23:10:28	1501ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 03:25:50	1487ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-10 06:11:07	1737ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-04 01:21:57	2109ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-25 10:29:12	3262ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-19 16:25:31	3889ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 13:10:49	335ms	0 NS 0 A 0 MX	❓ Unknown	View