jerndorff.dk DNS records

🖥️ Nameservers2 records 87ms

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 71ms

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

📧 MX Records5 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	aspmx.l.google.com	173.194.221.27 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b	lm-in-f27.1e100.net lr-in-x1b.1e100.net lr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	—	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	—	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	—	aspmx2.googlemail.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	—	aspmx3.googlemail.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records1 records 74ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBNAAgACDAjIMLMdyoyKrz46qSONFPzN+RU0NXjPG5OscOQ8iLfgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1

📝 TXT Records2 records 205ms

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)

🔐 DNSSEC212ms

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

🏷️ SOA91ms

Field	Value
Serial	2406046659
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

87ms

A

71ms

MX

99ms

AAAA

51ms

TXT

205ms

CAA

78ms

HTTPS

74ms

TLSA

460ms

SOA

91ms

MTA-STS

100ms

DNSSEC

212ms

SRV

0ms

Total

4163ms

🕐 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