mathfilm.dk

Records from scan: 2026-10-22 09:10:53 · 1839ms total · last checked 2026-10-24 14:50 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mathfilm.dk is a .dk domain served by 2 nameservers (chelsea.ns.cloudflare.com, nolan.ns.cloudflare.com). It was registered on 21 July 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.27.128 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route2.mx.cloudflare.net, route3.mx.cloudflare.net and 1 more. 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 78ms

Nameserver	IP addresses	PTR	ASN / ISP
chelsea.ns.cloudflare.com	108.162.194.177 162.159.38.177 172.64.34.177 2606:4700:50::a29f:26b1 2803:f800:50::6ca2:c2b1 2a06:98c1:50::ac40:22b1	chelsea.ns.cloudflare.com chelsea.ns.cloudflare.com chelsea.ns.cloudflare.com chelsea.ns.cloudflare.com chelsea.ns.cloudflare.com chelsea.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
nolan.ns.cloudflare.com	108.162.195.56 162.159.44.56 172.64.35.56 2606:4700:58::a29f:2c38 2803:f800:50::6ca2:c338 2a06:98c1:50::ac40:2338	nolan.ns.cloudflare.com nolan.ns.cloudflare.com nolan.ns.cloudflare.com nolan.ns.cloudflare.com nolan.ns.cloudflare.com nolan.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 81ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.27.128	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.142.154	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 76ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
17	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
21	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
96	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)#

2 records 72ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 71ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.27.128,172.67.142.154 ech=AEX+DQBB/AAgACDmIAWmt9UdqrFcBRXy34tcvfLS+x9rY5kiTT1U8LqtHwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8e9a,2606:4700:3036::6815:1b80

📝 TXT Records#

2 records 270ms

TXT Record
google-site-verification=I_4Uvp1IYVbtjVLs7I1FvmbShymYoP3bTkzTeLorpmI
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (mathfilm.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~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 2026-10-22 09:10:53

www	NXDOMAIN
www vs bare domain	www does not resolve mathfilm.dk: 104.21.27.128 172.67.142.154 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.mathfilm.dk: no address (all like this)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 169ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…

🔐 DNSSEC#

195ms

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

🏷️ SOA#

88ms

Field	Value
Serial	2418043775
Primary NS (MNAME)	chelsea.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 19:23:44

Field	Value
Registrar	ONE.COM A/S
Registered	2025-07-21
Expires	2027-07-20 (268d)

🔗 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
skoleos.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

78ms

81ms

76ms

AAAA

72ms

TXT

270ms

CAA

75ms

HTTPS

71ms

TLSA

169ms

SOA

88ms

MTA-STS

135ms

DNSSEC

195ms

SRV

117ms

Total

1839ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 09:10:53 shown	1839ms	2 NS 2 A 3 MX	🔓 Insecure
2026-10-01 02:39:55	1278ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-27 01:47:11	9783ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-09 09:18:09	3811ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-08 23:13:34	1932ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-11 21:51:14	2889ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-03 20:15:17	2641ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-25 13:44:04	1510ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-24 10:03:24	1154ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 10:00:36	1169ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 08:38:17	1379ms	2 NS 2 A 3 MX	🔓 Insecure