mathiashermann.dk DNS records

🖥️ Nameservers2 records 48ms

Nameserver	IP addresses	PTR	ASN / ISP
cory.ns.cloudflare.com	108.162.193.93 172.64.33.93 173.245.59.93 2606:4700:58::adf5:3b5d 2803:f800:50::6ca2:c15d 2a06:98c1:50::ac40:215d	cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
leah.ns.cloudflare.com	108.162.192.129 172.64.32.129 173.245.58.129 2606:4700:50::adf5:3a81 2803:f800:50::6ca2:c081 2a06:98c1:50::ac40:2081	leah.ns.cloudflare.com leah.ns.cloudflare.com leah.ns.cloudflare.com leah.ns.cloudflare.com leah.ns.cloudflare.com leah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.2.77	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.128.229	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records5 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b 74.125.131.27	li-in-f27.1e100.net li-in-x1b.1e100.net lu-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	alt3.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	alt4.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.128.229
🔶 Autoconfig	172.67.128.229

🔷 AAAA Records (IPv6)2 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:80e5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:24d	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=104.21.2.77,172.67.128.229 ech=AEX+DQBBsgAgACA4kT9phvhO0Tf4ka/G4zE53oCVF+x/10uEakLDncCTCgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:80e5,2606:4700:3037::6815:24d

📝 TXT Records1 records 205ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (mathiashermann.dk)
~all (soft fail)	v=spf1 include:_spf.google.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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.mathiashermann.dk	EgKKn02RbtF_xJKEizkw360dXnl4WhU9D2yRsnsf3xI
TXT	_acme-challenge.mathiashermann.dk	w8l2T0Utop9LUjaQ-wRlagyu2ELUCREyiB3Yv9dScxA

🔗 TLSA / DANE

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

🔐 DNSSEC138ms

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	2412933535
Primary NS (MNAME)	cory.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

48ms

A

59ms

MX

51ms

AAAA

62ms

TXT

205ms

CAA

52ms

HTTPS

47ms

TLSA

555ms

SOA

0ms

MTA-STS

93ms

DNSSEC

138ms

SRV

102ms

Total

2081ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 16:07:27	1155ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-24 16:10:02	10382ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-23 13:07:55	2081ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-09 12:02:46	2176ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-27 03:20:03	2254ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-26 12:49:19	2266ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-24 07:14:06	1076ms	2 NS 2 A 5 MX	❓ Unknown	View
2026-06-20 17:11:49	3290ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-17 19:36:47	1154ms	2 NS 2 A 5 MX	🔓 Insecure	View