osys.dk DNS records

🖥️ Nameservers2 records 78ms

Nameserver	IP addresses	PTR	ASN / ISP
ricardo.ns.cloudflare.com	108.162.195.211 162.159.44.211 172.64.35.211 2606:4700:58::a29f:2cd3 2803:f800:50::6ca2:c3d3 2a06:98c1:50::ac40:23d3	ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com ricardo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ruth.ns.cloudflare.com	108.162.192.143 172.64.32.143 173.245.58.143 2606:4700:50::adf5:3a8f 2803:f800:50::6ca2:c08f 2a06:98c1:50::ac40:208f	ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com ruth.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.52.214	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.204.27	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records5 records 73ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	172.253.148.27 2a00:1450:4025:c03::1a	yuskedq-in-f27.1e100.net rc-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.152.27 2a00:1450:4001:c21::1a	yulpptr-in-f27.1e100.net lcfrai-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	188.114.96.1
🔶 Autoconfig	172.67.204.27

🔷 AAAA Records (IPv6)2 records 66ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:34d6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:cc1b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 72ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.52.214,172.67.204.27 ech=AEX+DQBBwAAgACC4ErFiYd3sH8czhtWupwUixryvdmPKDnsvcOWe4GX7KwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:34d6,2606:4700:3033::ac43:cc1b

📝 TXT Records2 records 306ms

TXT Record
google-site-verification=BETwDbC8yigzvu5F7pgI6686vlva7jMpaa8RbUZgkus
v=spf1 include:_spf.google.com -all

✉️ SPF

Policy	Record (osys.dk)
-all (hard fail)	v=spf1 include:_spf.google.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)

🔐 DNSSEC190ms

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	2412844803
Primary NS (MNAME)	ricardo.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

78ms

A

67ms

MX

73ms

AAAA

66ms

TXT

306ms

CAA

71ms

HTTPS

72ms

TLSA

230ms

SOA

0ms

MTA-STS

137ms

DNSSEC

190ms

SRV

107ms

Total

2336ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-22 18:58:31	2336ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-08 17:47:53	1909ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-27 05:39:36	1005ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-22 19:43:19	1025ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 23:01:36	998ms	2 NS 2 A 5 MX	🔓 Insecure	View