skole3600.dk

Records from scan: 2026-10-13 01:18:57 · 1229ms total · last checked 2026-10-17 08:39 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

skole3600.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 16 April 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by skole3600-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	skole3600-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::e 2a01:111:f403:ca38::8 2a01:111:f403:ca3c::8 52.101.103.36 52.101.103.39 52.101.209.31 52.101.68.12	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db9pr02cu00204.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)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 94ms

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

📝 TXT Records#

3 records 98ms

TXT Record
apple-domain-verification=PvOhwOi5Ts0QkO5H
MS=msXXXXXXXX
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF#

Policy	Record (skole3600.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.skole3600.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:64edbcac8583e@dmarc.centerasecurity.com

📬 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

🧩 Web & zone#

checked 2026-10-13 01:18:57

www	NXDOMAIN
www vs bare domain	Neither resolves skole3600.dk: no address www.skole3600.dk: no address
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-skole3600-dk._domainkey.skole3600.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

117ms

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

🏷️ SOA#

24ms

Field	Value
Serial	2026101200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-16 02:37:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-04-16
Expires	2027-04-30 (194d)

🔗 Same registrant#

23 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
brvskole.dk	Punktum dk A/S (direct)
diaprivatskole.dk	Punktum dk A/S (direct)
diaps.dk	Punktum dk A/S (direct)
easyiqcloud.dk	Punktum dk A/S (direct)
edupass.dk	Punktum dk A/S (direct)
egeskoledrev.dk	Punktum dk A/S (direct)
egeskoler365.dk	Punktum dk A/S (direct)
fanoskole.dk	Punktum dk A/S (direct)
faxeskole.dk	Punktum dk A/S (direct)
gsnsvejle.dk	Punktum dk A/S (direct)
hhskole.dk	Simply.com A/S
hsko.dk	Punktum dk A/S (direct)
kertemindeskoler.dk	Punktum dk A/S (direct)
læringsplatformen.dk	Punktum dk A/S (direct)
meddelelsesbogen.dk	Punktum dk A/S (direct)
netskolen.dk	Simply.com A/S
odderskole.dk	Punktum dk A/S (direct)
proiq.dk	Simply.com A/S
rs-lilleskole.dk	Simply.com A/S
skbu.dk	Punktum dk A/S (direct)
skivedna.dk	Punktum dk A/S (direct)
skolehk2.dk	Punktum dk A/S (direct)
tkfri.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

38ms

36ms

AAAA

33ms

TXT

98ms

CAA

28ms

HTTPS

37ms

TLSA

666ms

SOA

24ms

MTA-STS

45ms

DNSSEC

117ms

SRV

94ms

Total

1229ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:18:57 shown	1229ms	4 NS 0 A 1 MX	🔒 Secure
2026-10-02 06:12:57	1245ms	4 NS 0 A 1 MX	🔒 Secure
2026-10-01 06:05:21	726ms	4 NS 0 A 1 MX	🔒 Secure
2026-09-13 06:16:10	1066ms	4 NS 0 A 1 MX	🔒 Secure
2026-08-28 06:26:10	1401ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-19 16:12:40	821ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-17 15:35:48	2965ms	4 NS 0 A 1 MX	🔒 Secure