guldborgsund-dagskole.dk

📜 Historical scan 2026-07-03 09:23:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldborgsund-dagskole.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 24 April 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.8.38.8 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by guldborgsunddagskole-dk03b.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 30ms

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#

1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.8.38.8	3600s	—	AS48854	team.blue Denmark A/S	193.8.38.0/24	🇩🇰 Denmark	—

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	guldborgsunddagskole-dk03b.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca09::2 2a01:111:f403:ca09::4 2a01:111:f403:ca09::6 52.101.68.25 52.101.73.153 52.101.73.19 52.101.73.8	mail-db7pr03cu00401.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.104.116.24
🔶 Autoconfig	193.8.38.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 134ms

TXT Record
MS=ms38939495
v=spf1 mx a include:spf.curanet.dk include:spf.simply.com include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (guldborgsund-dagskole.dk)
-all (hard fail)	v=spf1 mx a include:spf.curanet.dk include:spf.simply.com 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: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

72ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2025042300
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 2026-10-06 00:56:06

Field	Value
Registrar	CURANET A/S
Registered	2020-04-24
Expires	2027-04-30 (187d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

32ms

31ms

AAAA

30ms

TXT

134ms

CAA

28ms

HTTPS

32ms

TLSA

216ms

SOA

29ms

MTA-STS

45ms

DNSSEC

72ms

SRV

87ms

Total

990ms

🕐 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	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 shown	990ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:15:42	4352ms	4 NS 1 A 1 MX	🔒 Secure