nachschule.dk

📜 Historical scan 2026-06-17 16:54:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nachschule.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 10 December 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.212 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by nachschule-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 79ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records#

1 records 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.212	—	linux311.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	nachschule-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::10 2a01:111:f403:ca04::8 2a01:111:f403:ca09::6 52.101.68.18 52.101.68.5 52.101.73.12 52.101.73.22	mail-db7pr03cu00401.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am7pr05cu00106.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 281ms

TXT Record
MS=ms34108942
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF#

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

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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#

latest probe, not this scan · checked 2026-10-17 10:56:45

www	93.191.156.212 (AS48854) (address records, no CNAME)
www vs bare domain	Same network nachschule.dk: 93.191.156.212 (AS48854) www.nachschule.dk: 93.191.156.212 (AS48854)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-nachschule-dk._domainkey.deutschesgymna.onmicrosoft.com	RSA · ~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#

152ms

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

🏷️ SOA#

81ms

Field	Value
Serial	2026012129
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-17 11:13:40

Field	Value
Registrar	Eurodns S.A
Registered	1999-12-10
Expires	2026-12-31 (74d)

🔗 Same registrant#

13 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
deutscheschuleapenrade.dk	Eurodns S.A
deutscheschulelunden.dk	Eurodns S.A
dsbuhrkall.dk	Eurodns S.A
dsfeldstedt.dk	Eurodns S.A
dshadersleben.dk	Eurodns S.A
dsluegumkloster.dk	Eurodns S.A
dslunden.dk	Eurodns S.A
dspattburg.dk	Eurodns S.A
dsrapstedt.dk	Eurodns S.A
dsro.dk	Eurodns S.A
f-s-g.dk	Eurodns S.A
tingleff.dk	Eurodns S.A
tondern.dk	Eurodns S.A

📋 WHOIS#

⏱️ Lookup Timing#

79ms

67ms

69ms

AAAA

62ms

TXT

281ms

CAA

61ms

HTTPS

67ms

TLSA

172ms

SOA

81ms

MTA-STS

286ms

DNSSEC

152ms

SRV

0ms

Total

923ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 10:56:45	1301ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 18:44:30	1707ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-30 18:35:44	1331ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-28 23:52:40	1130ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-27 23:30:18	1013ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-17 06:10:17	1384ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-26 22:22:08	1529ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-24 13:31:55	2010ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-23 11:54:48	4455ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-10 10:03:09	2335ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-19 10:47:38	1147ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-18 06:29:34	4264ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-02 17:52:10	5467ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 13:49:17	1030ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 16:54:27 shown	923ms	4 NS 1 A 1 MX	🔒 Secure