onlineteori.dk DNS records

🖥️ Nameservers2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
jessica.ns.cloudflare.com	108.162.192.171 172.64.32.171 173.245.58.171 2606:4700:50::adf5:3aab 2803:f800:50::6ca2:c0ab 2a06:98c1:50::ac40:20ab	jessica.ns.cloudflare.com jessica.ns.cloudflare.com jessica.ns.cloudflare.com jessica.ns.cloudflare.com jessica.ns.cloudflare.com jessica.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
quinton.ns.cloudflare.com	108.162.195.249 162.159.44.249 172.64.35.249 2606:4700:58::a29f:2cf9 2803:f800:50::6ca2:c3f9 2a06:98c1:50::ac40:23f9	quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com quinton.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.85.103	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.204.116	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	spam.micusto.com	94.237.28.65	spam.micusto.com	AS202053 UpCloud Ltd

🔷 AAAA Records (IPv6)2 records 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:5567	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:cc74	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.85.103,172.67.204.116 ech=AEX+DQBBOAAgACACu6z+tYlNEn+wKDk/uzhGc5lAyIsqWJhR583j7e+BfgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:5567,2606:4700:3034::ac43:cc74

📝 TXT Records4 records 211ms

TXT Record
brevo-code:69f6d0a7976a51d0ce312f96975b3466
google-gws-recovery-domain-verification=56979507
google-site-verification=FmmbHtDnQE8PR21R7r7OnBIB8rHa6EsTOUwu4XPGTD0
v=spf1 mx include:_spf.dcmediahosting.com include:spf.mailjet.com ~all

✉️ SPF

Policy	Record (onlineteori.dk)
~all (soft fail)	v=spf1 mx include:_spf.dcmediahosting.com include:spf.mailjet.com ~all

📨 DMARC

Policy	Record (_dmarc.onlineteori.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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)

🔐 DNSSEC9079ms

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

🏷️ SOA0ms

Field	Value
Serial	2413085473
Primary NS (MNAME)	jessica.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

38ms

A

45ms

MX

41ms

AAAA

32ms

TXT

211ms

CAA

36ms

HTTPS

43ms

TLSA

83ms

SOA

0ms

MTA-STS

55ms

DNSSEC

9079ms

SRV

69ms

Total

10154ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 03:54:54	10154ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-24 23:22:27	9491ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-23 22:55:10	1021ms	2 NS 2 A 1 MX	❓ Unknown	View
2026-07-23 15:11:50	1508ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-20 00:06:35	25741ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 13:23:00	2383ms	2 NS 2 A 1 MX	🔓 Insecure	View