thomasfyrst.dk

📜 Historical scan 2026-08-27 11:58:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

thomasfyrst.dk is a .dk domain served by 2 nameservers (adrian.ns.cloudflare.com, jim.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.57.16 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, publishes a 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 60ms

Nameserver	IP addresses	PTR	ASN / ISP
adrian.ns.cloudflare.com	108.162.192.57 172.64.32.57 173.245.58.57 2606:4700:50::adf5:3a39 2803:f800:50::6ca2:c039 2a06:98c1:50::ac40:2039	adrian.ns.cloudflare.com adrian.ns.cloudflare.com adrian.ns.cloudflare.com adrian.ns.cloudflare.com adrian.ns.cloudflare.com adrian.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jim.ns.cloudflare.com	108.162.193.125 172.64.33.125 173.245.59.125 2606:4700:58::adf5:3b7d 2803:f800:50::6ca2:c17d 2a06:98c1:50::ac40:217d	jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.57.16	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.158.75	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.158.75
🔶 Autoconfig	104.21.57.16

🔷 AAAA Records (IPv6)#

2 records 64ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:3910	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:9e4b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 64ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.57.16,172.67.158.75 ech=AEX+DQBBywAgACC+r27rvQ2ITTeAhRa19al8UU/bGo3esajfWq8tG/qeIAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:3910,2606:4700:3034::ac43:9e4b

📝 TXT Records#

4 records 230ms

TXT Record
facebook-domain-verification=cvgqrnfjmvyrt50vdie6m7nwfpk3e4
google-site-verification=P8FFIugRX4xkEnLaKaN24GcpvFYK9pxVKlWw7fAVcIc
groove-verification=ArtlbgrWowgtbAJZ
v=spf1 include:spf.simply.com -all

✉️ SPF#

Policy	Record (thomasfyrst.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.thomasfyrst.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:thomas@thomasfyrst.dk

📬 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 2026-10-07 23:11:15

www	104.21.57.16 172.67.158.75 2606:4700:3034::6815:3910 2606:4700:3034::ac43:9e4b (AS13335) (address records, no CNAME)
www vs bare domain	Same network thomasfyrst.dk: 104.21.57.16 172.67.158.75 2606:4700:3034::6815:3910 2606:4700:3034::ac43:9e4b (AS13335) www.thomasfyrst.dk: 104.21.57.16 172.67.158.75 2606:4700:3034::6815:3910 2606:4700:3034::ac43:9e4b (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.thomasfyrst.dk	BSYRtxguzwlpIdA9zxLXySofuqV2FaCEzTf4ceIZWLI
TXT	_acme-challenge.thomasfyrst.dk	WmYOESRp58tI91EawjJUsLQlrP--W2-2Tu6HNnRKQME

🔗 TLSA / DANE#

2 records 74ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

111ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413210550
Primary NS (MNAME)	adrian.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#

60ms

43ms

57ms

AAAA

64ms

TXT

230ms

CAA

48ms

HTTPS

64ms

TLSA

74ms

SOA

0ms

MTA-STS

72ms

DNSSEC

111ms

SRV

93ms

Total

808ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 17:27:25	714ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 12:45:18	1401ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 11:58:15 shown	808ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 17:48:00	1047ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-23 22:52:48	3290ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-19 19:45:43	18203ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-25 06:28:54	5684ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 20:15:46	675ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 13:00:39	1479ms	2 NS 2 A 1 MX	🔓 Insecure