jerndorff.dk DNS records

🖥️ Nameservers2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
david.ns.cloudflare.com	108.162.193.152 172.64.33.152 173.245.59.152 2606:4700:58::adf5:3b98 2803:f800:50::6ca2:c198 2a06:98c1:50::ac40:2198	david.ns.cloudflare.com david.ns.cloudflare.com david.ns.cloudflare.com david.ns.cloudflare.com david.ns.cloudflare.com david.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
irma.ns.cloudflare.com	108.162.192.166 172.64.32.166 173.245.58.166 2606:4700:50::adf5:3aa6 2803:f800:50::6ca2:c0a6 2a06:98c1:50::ac40:20a6	irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com irma.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.66.37	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.155.218	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records5 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	142.250.150.26 2a00:1450:4010:c22::1a	la-in-f26.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4013:813::1a	lcbomp-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4013:813::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.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
30	300s	aspmx3.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4013:813::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	94.231.104.196
🔶 Autoconfig	94.231.104.196

🔷 AAAA Records (IPv6)2 records 23ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:4225	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:9bda	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 26ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.66.37,172.67.155.218 ech=AEX+DQBBwAAgACCdvmOOe+tzguj660NLGqTP2+cv3808RXlAPa7FeOP8egAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4225,2606:4700:3034::ac43:9bda

📝 TXT Records2 records 142ms

TXT Record
v=DMARC1; p=none; rua=mailto:michael@jerndorff.dk
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (jerndorff.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

🔗 TLSA / DANE

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

🔐 DNSSEC102ms

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	2413461706
Primary NS (MNAME)	david.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

31ms

A

34ms

MX

36ms

AAAA

23ms

TXT

142ms

CAA

24ms

HTTPS

26ms

TLSA

144ms

SOA

0ms

MTA-STS

41ms

DNSSEC

102ms

SRV

54ms

Total

806ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 05:27:52	806ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-27 16:02:06	1190ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-25 04:02:08	8835ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-04 10:40:30	3324ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-25 18:01:44	952ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-17 13:20:41	4163ms	2 NS 2 A 5 MX	🔓 Insecure	View