vardegymnasium.dk

📜 Historical scan 2026-06-24 09:13:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

vardegymnasium.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 29 November 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.198.107.117 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by vardegymnasium-dk.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, 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 215ms

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#

1 records 307ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
18.198.107.117	3600s	ec2-18-198-107-117.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	18.192.0.0/13	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 172ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	vardegymnasium-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::7 2a01:111:f403:ca04::d 2a01:111:f403:ca09::d 52.101.68.27 52.101.73.1 52.101.73.2 52.101.73.6	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 298ms

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

📝 TXT Records#

4 records 589ms

TXT Record
apple-domain-verification=sm5U7U0sSjOHgPgL
facebook-domain-verification=t2vnnr6hbqdj3uka2l7p36dif34s6q
MS=ms33072377
v=spf1 include:spf.protection.outlook.com include:u9973402.wl153.sendgrid.net ip4:83.91.91.2 -all

✉️ SPF#

Policy	Record (vardegymnasium.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:u9973402.wl153.sendgrid.net ip4:83.91.91.2 -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 2026-10-21 06:14:25

www	18.198.107.117 (AS16509) (address records, no CNAME)
www vs bare domain	Same network vardegymnasium.dk: 18.198.107.117 (AS16509) www.vardegymnasium.dk: 18.198.107.117 (AS16509)
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

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u9973402.wl153.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u9973402.wl153.sendgrid.net	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#

465ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'vardegymnasium.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

299ms

Field	Value
Serial	2023061501
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 2026-10-09 10:48:32

Field	Value
Registrar	CURANET A/S
Registered	2006-11-29
Expires	2026-11-30 (35d)

📋 WHOIS#

⏱️ Lookup Timing#

215ms

307ms

172ms

AAAA

302ms

TXT

589ms

CAA

307ms

HTTPS

257ms

TLSA

290ms

SOA

299ms

MTA-STS

314ms

DNSSEC

465ms

SRV

298ms

Total

3048ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 06:14:25	1141ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 10:25:05	1049ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 07:28:41	1314ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 18:16:05	815ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 15:27:54	1027ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 23:49:12	1271ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 21:44:16	1139ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 11:45:18	1025ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 09:13:43 shown	3048ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-22 23:23:53	998ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 03:02:58	1089ms	2 NS 1 A 1 MX	🔒 Secure