erf.dk

📜 Historical scan 2026-06-17 08:12:47 · ← 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. Its website address 172.199.35.128 is hosted by Microsoft Corporation (AS8075) in The Netherlands. 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 1190ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	—	—	—
ns2.eurodns.com	—	—	—
ns3.eurodns.com	—	—	—
ns4.eurodns.com	—	—	—

🌍 A Records#

1 records 561ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
172.199.35.128	—	—	AS8075	Microsoft Corporation	172.196.0.0/14	🇳🇱 The Netherlands	Amsterdam

📧 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 3346ms

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#

4375ms

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

🏷️ SOA#

1481ms

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#

1190ms

561ms

1953ms

AAAA

2887ms

TXT

3346ms

CAA

2290ms

HTTPS

2575ms

TLSA

2512ms

SOA

1481ms

MTA-STS

2323ms

DNSSEC

4375ms

SRV

0ms

Total

15905ms

🕐 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	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 shown	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