formulahosting.dk

Records from scan: 2026-09-30 18:04:12 · 421ms total · last checked 2026-10-16 15:55 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

formulahosting.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 26 March 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 83.91.91.15 is hosted by TDC Holding A/S (AS3292) in Denmark. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 28ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
83.91.91.15	3600s	83-91-91-15-static.dk.customer.tdc.net	AS3292	TDC Holding A/S	83.90.0.0/15	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	formulahosting.dk → 83.91.91.15
🔶 Autoconfig	formulahosting.dk → 83.91.91.15

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 126ms

TXT Record
v=spf1 ip4:83.91.91.0/26 -all

✉️ SPF#

Policy	Record (formulahosting.dk)
-all (hard fail)	v=spf1 ip4:83.91.91.0/26 -all

📨 DMARC#

Policy	Record (_dmarc.formulahosting.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:dmarcreports@scanmail.nu;

📬 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 2026-10-08 21:29:18

www CNAME	formulahosting.dk (all on formulahosting.dk) → 83.91.91.15 (AS3292)
www vs bare domain	Same network formulahosting.dk: 83.91.91.15 (AS3292) www.formulahosting.dk: 83.91.91.15 (AS3292)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.formulahosting.dk	formulahosting.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

51ms

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

🏷️ SOA#

46ms

Field	Value
Serial	2026030501
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 09:33:02

Field	Value
Registrar	CURANET A/S
Registered	2011-03-26
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

32ms

34ms

AAAA

32ms

TXT

126ms

CAA

40ms

HTTPS

44ms

TLSA

30ms

SOA

46ms

MTA-STS

45ms

DNSSEC

51ms

SRV

40ms

Total

421ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 18:04:12 shown	421ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-27 00:46:06	499ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-02 10:11:04	731ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-26 09:19:30	2030ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-17 09:32:10	486ms	2 NS 1 A 0 MX	🔒 Secure