erfa-gruppen.dk

Records from scan: 2026-10-15 01:50:23 · 372ms total · last checked 2026-10-17 06:14 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

erfa-gruppen.dk is a .dk domain served by 2 nameservers (ns.kb.dk, ns2.kb.dk). It was registered on 11 March 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.226.229.40 is hosted by IDDQD-AS (AS1835) 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.kb.dk	130.226.226.15	ns.kb.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.kb.dk	130.225.179.5	ns2.kb.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.226.229.40	3600s	—	AS1835	IDDQD-AS	130.226.0.0/16	🇩🇰 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 159ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (erfa-gruppen.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.erfa-gruppen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dar@kb.dk;

📬 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 2026-10-15 01:50:23

www	130.226.229.40 (AS1835) (address records, no CNAME)
www vs bare domain	Same network erfa-gruppen.dk: 130.226.229.40 (AS1835) www.erfa-gruppen.dk: 130.226.229.40 (AS1835)
Wildcard	No
Denial of existence	NSEC3 · 50 iterations · 8-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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

53ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2016031557
Primary NS (MNAME)	ns.kb.dk
Responsible (RNAME)	dns@kb.dk
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-06 07:12:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-03-11
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

31ms

29ms

AAAA

25ms

TXT

159ms

CAA

52ms

HTTPS

36ms

TLSA

51ms

SOA

29ms

MTA-STS

50ms

DNSSEC

53ms

SRV

53ms

Total

372ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 01:50:23 shown	372ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-11 20:55:04	4504ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-06 06:43:41	3672ms	2 NS 1 A 0 MX	🔒 Secure
2026-10-01 06:06:22	2811ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-30 05:55:01	2585ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-28 07:08:11	1659ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-25 06:19:21	488ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-24 05:54:12	1160ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-17 08:59:52	567ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-11 09:55:15	3235ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-04 04:36:43	2947ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-28 20:01:47	944ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-25 04:42:51	2956ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-22 22:44:04	2994ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-18 19:38:56	3290ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-12 08:56:46	2756ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-08 08:02:30	504ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-07 05:13:17	596ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-30 14:54:06	4859ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-28 04:57:34	713ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-24 01:07:00	2809ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-19 13:58:24	2381ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-18 07:08:28	3128ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-15 09:52:02	16433ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-06 10:23:56	2929ms	2 NS 1 A 0 MX	🔒 Secure