sr4.dk

📜 Historical scan 2026-07-03 01:15:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sr4.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 16 June 2026 (WHOIS) and first appeared in the .dk zone on 17 June 2026. Its website address 185.21.40.87 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is DNSSEC-signed and validates, has no 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#

2 records 27ms

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 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.87	3600s	vm1447.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 115ms

TXT Record
v=spf1 a mx include:spf.curanet.dk include:web.shared.mysmtp.com ~all

✉️ SPF#

Policy	Record (sr4.dk)
~all (soft fail)	v=spf1 a mx include:spf.curanet.dk include:web.shared.mysmtp.com ~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#

latest probe, not this scan · checked 2026-10-08 14:14:05

www	185.21.40.87 (AS48854) (address records, no CNAME)
www vs bare domain	Same network sr4.dk: 185.21.40.87 (AS48854) www.sr4.dk: 185.21.40.87 (AS48854)
Wildcard	No
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: 9/10 · policy: ~all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

58ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2026061701
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 2026-10-10 07:41:49

Field	Value
Registrar	CURANET A/S
Registered	2026-06-16
Expires	2027-06-15 (241d)

📋 WHOIS#

⏱️ Lookup Timing#

27ms

28ms

31ms

AAAA

20ms

TXT

115ms

CAA

31ms

HTTPS

28ms

TLSA

43ms

SOA

27ms

MTA-STS

39ms

DNSSEC

58ms

SRV

34ms

Total

561ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 11:55:19	365ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-26 19:44:30	373ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-03 01:15:57 shown	561ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-28 00:45:43	1248ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-17 16:24:41	2386ms	2 NS 1 A 0 MX	🔒 Secure