guldborgsund-dagskole.dk

📜 Historical scan 2026-10-01 14:05:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldborgsund-dagskole.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 24 April 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 100.24.208.97 is hosted by Amazon.com, Inc. (AS14618) in United States. Mail is handled by guldborgsunddagskole-dk03b.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

2 records 137ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

2 records 154ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
100.24.208.97	3600s	staticip2.multiscreensite.com	AS14618	Amazon.com, Inc.	100.24.0.0/13	🇺🇸 United States	Ashburn
35.172.94.1	3600s	staticip.multiscreensite.com	AS14618	Amazon.com, Inc.	35.168.0.0/13	🇺🇸 United States	Ashburn

📧 MX Records#

1 records 204ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	guldborgsunddagskole-dk03b.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::d 2a01:111:f403:ca09::20 2a01:111:f403:ca38::a 52.101.103.137 52.101.68.15 52.101.73.145 52.101.91.153	mail-db7pr03cu00601.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-matpr04cu00101.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 417ms

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

✉️ SPF#

Policy	Record (guldborgsund-dagskole.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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 2026-10-09 08:44:57

www CNAME	s.multiscreensite.com (all on multiscreensite.com) → 13.248.175.166 76.223.58.8 (AS16509)
www vs bare domain	Different networks guldborgsund-dagskole.dk: 100.24.208.97 35.172.94.1 (AS14618) www.guldborgsund-dagskole.dk: 13.248.175.166 76.223.58.8 (AS16509) (all like this)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

346ms

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

🏷️ SOA#

95ms

Field	Value
Serial	2026100101
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-06 00:56:06

Field	Value
Registrar	CURANET A/S
Registered	2020-04-24
Expires	2027-04-30 (185d)

📋 WHOIS#

⏱️ Lookup Timing#

137ms

154ms

204ms

AAAA

124ms

TXT

417ms

CAA

192ms

HTTPS

188ms

TLSA

555ms

SOA

95ms

MTA-STS

244ms

DNSSEC

346ms

SRV

236ms

Total

2157ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 08:44:57	885ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-06 00:46:53	1320ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-03 00:20:56	1152ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 14:05:26 shown	2157ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 14:00:09	1118ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 01:17:07	1338ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 00:43:15	585ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-10 12:33:45	667ms	4 NS 1 A 1 MX	🔒 Secure
2026-07-03 09:23:26	990ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:15:42	4352ms	4 NS 1 A 1 MX	🔒 Secure