marselisborg-gymnasium.dk DNS records

🖥️ Nameservers2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.supportcenter.dk	87.54.32.150	—	AS3292 TDC Holding A/S
ns4.supportcenter.dk	2.106.7.200	ns4.supportcenter.dk	AS3292 TDC Holding A/S

🌍 A Records

🌍

No A records found

📧 MX Records1 records 23ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 86ms

TXT Record
klaviyo-site-verification=QZ6BWs
v=spf1 -all

✉️ SPF

Policy	Record (marselisborg-gymnasium.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.marselisborg-gymnasium.dk)
p=reject	v=DMARC1; p=reject;rua=mailto:dmarc@via.dk; ruf=mailto:dmarc@via.dk

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC98ms

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

🏷️ SOA0ms

Field	Value
Serial	717
Primary NS (MNAME)	ns3.supportcenter.dk
Responsible (RNAME)	hostmaster@supportcenter.dk
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

31ms

A

28ms

MX

23ms

AAAA

24ms

TXT

86ms

CAA

31ms

HTTPS

30ms

TLSA

15ms

SOA

0ms

MTA-STS

33ms

DNSSEC

98ms

SRV

31ms

Total

2762ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 22:51:30	2762ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-28 00:43:02	358ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-25 22:04:34	393ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-23 03:04:05	3414ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-22 02:45:59	3532ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-20 01:56:56	8768ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-16 00:42:31	2266ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-14 20:07:06	871ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-13 13:50:23	404ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-10 04:24:54	11469ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-07 13:24:56	11586ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-04 12:37:32	435ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-02 18:42:28	702ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-25 13:29:08	2988ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-23 12:30:40	646ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-21 06:30:54	411ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-18 19:30:39	8439ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-17 11:47:18	8450ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-12 19:39:15	8596ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-08 14:45:48	8432ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-06 23:48:00	492ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-03 17:53:30	439ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-01 21:06:13	353ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-27 18:27:32	404ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-18 06:36:41	465ms	2 NS 0 A 0 MX	🔒 Secure	View