jerndorff.dk

📜 Historical scan 2026-06-17 13:20:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jerndorff.dk is a .dk domain served by 2 nameservers (david.ns.cloudflare.com, irma.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.66.37 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 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 Records#

2 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 Records#

5 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 Records#

1 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 Records#

2 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 11:51:10

www	104.21.66.37 172.67.155.218 2606:4700:3032::6815:4225 2606:4700:3034::ac43:9bda (AS13335) (address records, no CNAME)
www vs bare domain	Same network jerndorff.dk: 104.21.66.37 172.67.155.218 2606:4700:3032::6815:4225 2606:4700:3034::ac43:9bda (AS13335) www.jerndorff.dk: 104.21.66.37 172.67.155.218 2606:4700:3032::6815:4225 2606:4700:3034::ac43:9bda (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

212ms

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

🏷️ SOA#

91ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

87ms

71ms

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
2026-10-09 11:51:10	648ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-27 20:04:15	1358ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-10 01:40:54	9726ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-30 05:27:52	806ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 16:02:06	1190ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-25 04:02:08	8835ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-04 10:40:30	3324ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-25 18:01:44	952ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 13:20:41 shown	4163ms	2 NS 2 A 5 MX	🔓 Insecure