studiekorrektur.dk DNS records

🖥️ Nameservers2 records 70ms

Nameserver	IP addresses	PTR	ASN / ISP
lauryn.ns.cloudflare.com	108.162.194.22 162.159.38.22 172.64.34.22 2606:4700:50::a29f:2616 2803:f800:50::6ca2:c216 2a06:98c1:50::ac40:2216	lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
peyton.ns.cloudflare.com	108.162.193.221 172.64.33.221 173.245.59.221 2606:4700:58::adf5:3bdd 2803:f800:50::6ca2:c1dd 2a06:98c1:50::ac40:21dd	peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.51.205	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.185.225	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	in1-smtp.messagingengine.com	103.168.172.216 103.168.172.217 103.168.172.218 103.168.172.219 103.168.172.220 103.168.172.221 103.168.172.222 103.168.172.223	phl-mx-01.messagingengine.com phl-mx-02.messagingengine.com phl-mx-03.messagingengine.com phl-mx-04.messagingengine.com phl-mx-05.messagingengine.com phl-mx-06.messagingengine.com phl-mx-07.messagingengine.com phl-mx-08.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd
20	300s	in2-smtp.messagingengine.com	202.12.124.216 202.12.124.217 202.12.124.218 202.12.124.219	stl-mx-01.messagingengine.com stl-mx-02.messagingengine.com stl-mx-03.messagingengine.com stl-mx-04.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd

🔷 AAAA Records (IPv6)2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:b9e1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:33cd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 47ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.51.205,172.67.185.225 ech=AEX+DQBBRgAgACDgaNOvAMvElhFmdVdE2XGFNVk0aUo60AWhRKS1DACgUAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:b9e1,2606:4700:3037::6815:33cd

📝 TXT Records2 records 257ms

TXT Record
spf2.0/pra
v=spf1 mx include:spf.messagingengine.com -all

✉️ SPF

Policy	Record (studiekorrektur.dk)
-all (hard fail)	v=spf1 mx include:spf.messagingengine.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

🔗 TLSA / DANE

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

🔐 DNSSEC110ms

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	2412002205
Primary NS (MNAME)	lauryn.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

70ms

A

56ms

MX

62ms

AAAA

51ms

TXT

257ms

CAA

54ms

HTTPS

47ms

TLSA

248ms

SOA

0ms

MTA-STS

74ms

DNSSEC

110ms

SRV

83ms

Total

1369ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 20:30:50	1369ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-26 01:13:24	2310ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-12 10:05:29	1926ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-11 10:35:08	9667ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-25 22:00:35	3036ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-25 05:16:31	1047ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-19 17:52:28	892ms	2 NS 2 A 2 MX	⚠️ Bogus	View
2026-06-17 19:44:39	907ms	2 NS 2 A 2 MX	🔓 Insecure	View