osterskovefterskole.dk DNS records

🖥️ Nameservers2 records 59ms

Nameserver	IP addresses	PTR	ASN / ISP
bella.ns.cloudflare.com	108.162.192.74 172.64.32.74 173.245.58.74 2606:4700:50::adf5:3a4a 2803:f800:50::6ca2:c04a 2a06:98c1:50::ac40:204a	bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mark.ns.cloudflare.com	108.162.193.130 172.64.33.130 173.245.59.130 2606:4700:58::adf5:3b82 2803:f800:50::6ca2:c182 2a06:98c1:50::ac40:2182	mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.95.72	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.143.128	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	osterskovefterskole-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::9 2a01:111:f403:ca09::3 2a01:111:f403:ca09::c 52.101.68.39 52.101.73.16 52.101.73.22 52.101.73.24	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as8pr05cu00300.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 29ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5f48	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:8f80	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 49ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.95.72,172.67.143.128 ech=AEX+DQBBvAAgACAjBvVHkFpqArpRl920aDwCdfppSK52abJazKltW9VlRAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5f48,2606:4700:3032::ac43:8f80

📝 TXT Records3 records 227ms

TXT Record
MS=ms55648668
uvmid=823304
v=spf1 ip4:83.136.91.38 include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (osterskovefterskole.dk)
~all (soft fail)	v=spf1 ip4:83.136.91.38 include:spf.protection.outlook.com ~all

📨 DMARC

Policy	Record (_dmarc.osterskovefterskole.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:dmarc@osterskov.dk

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records11 records 46ms

Flags	Tag	Value
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	rapidssl.com
0	issue	ssl.com
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🔗 TLSA / DANE

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

🔐 DNSSEC76ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2412887125
Primary NS (MNAME)	bella.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 RegistrationWHOIS fetched 2026-07-05 22:04:56

Field	Value
Registrar	Simply.com A/S
Registered	2005-06-07
Expires	2027-06-30 (297d)

📋 WHOIS

⏱️ Lookup Timing

NS

59ms

A

32ms

MX

44ms

AAAA

29ms

TXT

227ms

CAA

46ms

HTTPS

49ms

TLSA

603ms

SOA

0ms

MTA-STS

65ms

DNSSEC

76ms

SRV

80ms

Total

1655ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 16:07:50	1655ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-26 13:46:26	10718ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-23 07:08:02	2980ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-15 13:51:34	3463ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-05 21:54:13	2045ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-29 15:35:03	2448ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-09 00:50:26	2409ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-05 22:04:33	2275ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 08:26:07	2164ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-22 08:00:29	930ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 06:17:27	1470ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 15:35:09	1390ms	2 NS 2 A 1 MX	🔓 Insecure	View