sisu.dk DNS records

🖥️ Nameservers2 records 48ms

Nameserver	IP addresses	PTR	ASN / ISP
jonah.ns.cloudflare.com	108.162.193.186 172.64.33.186 173.245.59.186 2606:4700:58::adf5:3bba 2803:f800:50::6ca2:c1ba 2a06:98c1:50::ac40:21ba	jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
suzanne.ns.cloudflare.com	108.162.194.87 162.159.38.87 172.64.34.87 2606:4700:50::a29f:2657 2803:f800:50::6ca2:c257 2a06:98c1:50::ac40:2257	suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.ns.cloudflare.com suzanne.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
104.21.43.213	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.185.231	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	sisu-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca48::10 2a01:111:f403:ca48::12 2a01:111:f403:ca48::c 52.101.185.24 52.101.68.12 52.101.73.145 52.101.73.15	mail-db7pr03cu00401.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.24
🔶 Autoconfig	104.21.43.213

🔷 AAAA Records (IPv6)2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:b9e7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:2bd5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 47ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.43.213,172.67.185.231 ech=AEX+DQBBpAAgACCveGIwlrgR4TlDzUwDyIX/dymgYZbQnSxjCdt9Rxf6JQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:b9e7,2606:4700:3036::6815:2bd5

🔌 SRV Records2 records 130ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 320ms

TXT Record
MS=msXXXXXXXX
v=spf1 include:spf.protection.outlook.com ip4:94.231.103.45 ~all

✉️ SPF

Policy	Record (sisu.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ip4:94.231.103.45 ~all

📨 DMARC

Policy	Record (_dmarc.sisu.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:76488982ada04cc0ac3f7d9d1f36c969@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.sisu.dk	DsvJH2WB7fBclQhF0XXnMygmD_8c4A7d3_rZGgebDbI

🔗 TLSA / DANE

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

🔐 DNSSEC86ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2413637073
Primary NS (MNAME)	jonah.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

48ms

A

67ms

MX

48ms

AAAA

34ms

TXT

320ms

CAA

56ms

HTTPS

47ms

TLSA

185ms

SOA

0ms

MTA-STS

72ms

DNSSEC

86ms

SRV

130ms

Total

1076ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 12:04:24	1076ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-31 09:43:20	3288ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-26 19:20:10	1083ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-07 08:34:18	1782ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-22 04:00:22	9465ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-21 03:24:59	9382ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-28 00:26:44	1005ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 19:17:37	922ms	2 NS 2 A 1 MX	🔓 Insecure	View