katedralskolen.dk DNS records

🖥️ Nameservers2 records 24ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.supportcenter.dk	87.54.32.150	—	AS3292 TDC Holding A/S
ns4.supportcenter.dk	2.106.7.200	ns4.supportcenter.dk	AS3292 TDC Holding A/S

🌍 A Records1 records 23ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.235.58.95	3600s	—	AS60781	LeaseWeb Netherlands B.V.	77.235.56.0/21	🇳🇱 The Netherlands	—

📧 MX Records4 records 21ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	dk.mx1.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	3600s	dk.mx2.mx25.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.
30	3600s	dk.mx3.mailanyone.net	192.162.219.255 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
40	3600s	dk.mx4.mx25.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 66ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records4 records 87ms

TXT Record
have-i-been-pwned-verification=dweb_2qq6omfj6ltmdixdb6ohlo6e
MS=ms52980828
sY+LNY68R8jNWuQxMOTEqCZ4NLym9k0yLzk+UNzSQZHvv8OQCu7AltgJ9XUAAW0fuQpKwZJxF6kESGJK+db05Q==
v=spf1 ip4:87.54.32.251 include:spf.protection.outlook.com include:spf.mailanyone.net -all

✉️ SPF

Policy	Record (katedralskolen.dk)
-all (hard fail)	v=spf1 ip4:87.54.32.251 include:spf.protection.outlook.com include:spf.mailanyone.net -all

📨 DMARC

Policy	Record (_dmarc.katedralskolen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:6073f6b2c01db@ag.dmarcly.com; ruf=mailto:6073f6b2c01db@fo.dmarcly.com; sp=reject; fo=1;

📬 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 / DANE8 records 262ms

Service / Owner	Type	Cert association
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…

🔐 DNSSEC92ms

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

🏷️ SOA0ms

Field	Value
Serial	1045
Primary NS (MNAME)	ns3.supportcenter.dk
Responsible (RNAME)	hostmaster@supportcenter.dk
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

24ms

A

23ms

MX

21ms

AAAA

34ms

TXT

87ms

CAA

23ms

HTTPS

23ms

TLSA

262ms

SOA

0ms

MTA-STS

31ms

DNSSEC

92ms

SRV

66ms

Total

930ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 21:58:28	930ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-28 02:23:10	799ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-27 02:16:35	1094ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 15:49:28	1231ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-23 17:13:54	2259ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-19 14:15:13	3182ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-18 14:14:32	4295ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-17 03:48:47	1535ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-15 16:44:02	2708ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-12 05:44:43	5335ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-11 03:31:45	3341ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-09 08:04:11	1342ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-07 08:51:07	1103ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-30 10:39:43	4688ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-24 20:53:26	1371ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-22 17:37:33	1491ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-21 01:57:30	1314ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-18 16:59:20	3477ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-17 16:29:04	9707ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-14 14:16:42	1158ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-08 14:39:50	2184ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-06 04:51:58	1320ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-04 22:00:24	2504ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-03 13:48:18	3347ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-30 02:06:52	811ms	2 NS 1 A 4 MX	🔒 Secure	View