mathfox.dk

📜 Historical scan 2026-06-20 13:24:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mathfox.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 24 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.150.1.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by smtp.google.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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#

3 records 203ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 362ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.150.1.1	3600s	—	AS16509	Amazon.com, Inc.	216.150.1.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 588ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	173.194.220.26 173.194.220.27 173.194.222.26 2a00:1450:4010:c07::1a 2a00:1450:4010:c07::1a 2a00:1450:4010:c07::1b 2a00:1450:4010:c07::1b 2a00:1450:4010:c08::1a 2a00:1450:4010:c08::1a 2a00:1450:4010:c0d::1b 2a00:1450:4010:c0d::1b 64.233.164.26 64.233.164.27	lk-in-f26.1e100.net lk-in-f27.1e100.net lo-in-f26.1e100.net lf-in-x1a.1e100.net lf-in-f26.1e100.net lf-in-f27.1e100.net lf-in-x1b.1e100.net lg-in-f26.1e100.net lg-in-x1a.1e100.net lq-in-f27.1e100.net lq-in-x1b.1e100.net lf-in-f26.1e100.net lf-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 748ms

TXT Record
google-site-verification=HdrCO7GEOaJZDNsH_FFVa6dARMNByXIlg_7qiT5j9aU

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.mathfox.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-12 15:33:07

www CNAME	345bc508b2026985.vercel-dns-017.com (all on vercel-dns-017.com) → 216.150.1.129 216.150.16.129 (AS16509)
www vs bare domain	Same network mathfox.dk: 216.150.1.1 (AS16509) www.mathfox.dk: 216.150.1.129 216.150.16.129 (AS16509)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

653ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

332ms

Field	Value
Serial	2026022603
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-04 07:12:10

Field	Value
Registrar	Simply.com A/S
Registered	2026-02-24
Expires	2027-02-23 (124d)

📋 WHOIS#

⏱️ Lookup Timing#

203ms

362ms

588ms

AAAA

547ms

TXT

748ms

CAA

245ms

HTTPS

403ms

TLSA

318ms

SOA

332ms

MTA-STS

591ms

DNSSEC

653ms

SRV

597ms

Total

2971ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 15:33:07	767ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-04 06:56:00	396ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-12 01:15:22	559ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 09:37:05	762ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-02 09:44:34	891ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 13:24:58 shown	2971ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-18 08:35:58	962ms	3 NS 1 A 1 MX	🔒 Secure