erf.dk

📜 Historical scan 2026-06-21 23:18:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

erf.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, 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#

4 records 98ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records#

1 records 87ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
172.199.35.128	3600s	—	AS8075	—	—	—	—

📧 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 585ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (erf.dk)
-all (hard fail)	v=spf1 -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 2026-10-12 08:52:00

www	172.199.35.128 (AS8075) (address records, no CNAME)
www vs bare domain	Same network erf.dk: 172.199.35.128 (AS8075) www.erf.dk: 172.199.35.128 (AS8075)
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#

203ms

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

🏷️ SOA#

97ms

Field	Value
Serial	2025120400
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	86400s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

98ms

87ms

83ms

AAAA

79ms

TXT

585ms

CAA

109ms

HTTPS

94ms

TLSA

160ms

SOA

97ms

MTA-STS

252ms

DNSSEC

203ms

SRV

218ms

Total

901ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 08:17:53	9509ms	4 NS 1 A 0 MX	🔓 Insecure
2026-09-05 23:11:24	679ms	4 NS 1 A 0 MX	🔓 Insecure
2026-06-21 23:18:20 shown	901ms	4 NS 1 A 0 MX	🔓 Insecure
2026-06-21 15:05:28	1037ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 09:34:09	1182ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 22:03:30	492ms	4 NS 1 A 0 MX	🔓 Insecure
2026-06-17 08:16:41	1252ms	4 NS 1 A 0 MX	🔓 Insecure
2026-06-17 08:12:47	15905ms	4 NS 1 A 0 MX	🔓 Insecure
2026-06-17 08:04:49	387ms	4 NS 1 A 0 MX	🔓 Insecure
2026-06-17 08:00:44	547ms	4 NS 1 A 0 MX	🔓 Insecure