mester1.dk

Records from scan: 2026-10-13 04:19:29 · 481ms total · last checked 2026-10-19 11:31 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mester1.dk is a .dk domain served by 2 nameservers (rudy.ns.cloudflare.com, tessa.ns.cloudflare.com). It was registered on 2 August 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.41.135 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.mester1.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 29ms

Nameserver	IP addresses	PTR	ASN / ISP
rudy.ns.cloudflare.com	108.162.193.229 172.64.33.229 173.245.59.229 2606:4700:58::adf5:3be5 2803:f800:50::6ca2:c1e5 2a06:98c1:50::ac40:21e5	rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tessa.ns.cloudflare.com	108.162.194.229 162.159.38.229 172.64.34.229 2606:4700:50::a29f:26e5 2803:f800:50::6ca2:c2e5 2a06:98c1:50::ac40:22e5	tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.ns.cloudflare.com tessa.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 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.41.135	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.147.127	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.mester1.dk	86.52.62.54	86-52-62-54.norlyscustomer.net	AS39642 Sinal A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	86.52.62.54

🔷 AAAA Records (IPv6)#

2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::6815:2987	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:937f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.41.135,172.67.147.127 ech=AEX+DQBB9wAgACCqTtsyqssKocINIKXG3MUBEQM/IlXxMKtQ3T7NV6B4MQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:2987,2606:4700:3036::ac43:937f

📝 TXT Records#

1 records 155ms

TXT Record
v=spf1 ip4:212.10.10.79 ip4:212.10.10.78 -all

✉️ SPF#

Policy	Record (mester1.dk)
-all (hard fail)	v=spf1 ip4:212.10.10.79 ip4:212.10.10.78 -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#

checked 2026-10-13 04:19:29

www	104.21.41.135 172.67.147.127 2606:4700:3036::6815:2987 2606:4700:3036::ac43:937f (AS13335) (address records, no CNAME)
www vs bare domain	Same network mester1.dk: 104.21.41.135 172.67.147.127 2606:4700:3036::6815:2987 2606:4700:3036::ac43:937f (AS13335) www.mester1.dk: 104.21.41.135 172.67.147.127 2606:4700:3036::6815:2987 2606:4700:3036::ac43:937f (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

64ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2417263861
Primary NS (MNAME)	rudy.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 04:08:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-08-02
Expires	2027-09-30 (345d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
reolgruppen.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

31ms

32ms

AAAA

50ms

TXT

155ms

CAA

33ms

HTTPS

34ms

TLSA

67ms

SOA

43ms

MTA-STS

62ms

DNSSEC

64ms

SRV

54ms

Total

481ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 04:19:29 shown	481ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-12 03:50:25	2229ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 02:29:18	2804ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-25 03:25:46	10077ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-15 12:58:48	1038ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-13 22:37:31	8851ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-29 02:25:00	2690ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 21:46:25	1407ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 15:50:55	571ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 07:54:39	728ms	2 NS 2 A 1 MX	🔓 Insecure