sa21.dk DNS records

🖥️ Nameservers2 records 75ms

Nameserver	IP addresses	PTR	ASN / ISP
josephine.ns.cloudflare.com	108.162.194.64 162.159.38.64 172.64.34.64 2606:4700:50::a29f:2640 2803:f800:50::6ca2:c240 2a06:98c1:50::ac40:2240	josephine.ns.cloudflare.com josephine.ns.cloudflare.com josephine.ns.cloudflare.com josephine.ns.cloudflare.com josephine.ns.cloudflare.com josephine.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
leo.ns.cloudflare.com	108.162.195.241 162.159.44.241 172.64.35.241 2606:4700:58::a29f:2cf1 2803:f800:50::6ca2:c3f1 2a06:98c1:50::ac40:23f1	leo.ns.cloudflare.com leo.ns.cloudflare.com leo.ns.cloudflare.com leo.ns.cloudflare.com leo.ns.cloudflare.com leo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records1 records 85ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	sa21-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::e 2a01:111:f403:ca09::6 2a01:111:f403:ca09::d 52.101.103.137 52.101.103.143 52.101.73.12 52.101.73.123	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am6pr02cu00203.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 378ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (sa21.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.sa21.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:51653ea52d4a41f5a066a07d464b73c4@dmarc-reports.cloudflare.net

📬 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.sa21.dk	3qbzXZjCqFRI47Kjy7UCkpYSUzWupZ3Q2LAG_BFPQC8

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC255ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2413106298
Primary NS (MNAME)	josephine.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

75ms

A

77ms

MX

85ms

AAAA

80ms

TXT

378ms

CAA

84ms

HTTPS

84ms

TLSA

708ms

SOA

0ms

MTA-STS

221ms

DNSSEC

255ms

SRV

205ms

Total

1691ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 10:13:31	1691ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-24 18:09:54	1056ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-23 17:15:56	3285ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-14 22:27:08	3381ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-06 15:11:27	17422ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-19 10:20:40	9552ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-17 01:27:20	2149ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-06 00:32:54	2720ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-03 13:08:58	806ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-29 10:42:23	1135ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-28 17:27:27	959ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-25 20:16:16	1350ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-23 21:33:06	2932ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-22 11:11:15	897ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 18:12:28	5702ms	2 NS 0 A 1 MX	🔒 Secure	View