esl-foreningen.dk

📜 Historical scan 2026-06-27 23:57:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

esl-foreningen.dk is a .dk domain served by 4 nameservers (ns1.c1.sdc-hosting.com, ns1.c2.sdc-hosting.com, ns1.c3.sdc-hosting.com and 1 more). It was registered on 17 August 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 51.75.250.215 is hosted by OVH SAS (AS16276) in France. Mail is handled by mail1.c1.sdc-hosting.com, mail1.c2.sdc-hosting.com and 1 more. 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 315ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.c1.sdc-hosting.com	185.152.201.34	backup004.c1.nordic-backup.com	AS202567 Secure Data Center Aps
ns1.c2.sdc-hosting.com	185.152.200.31	ns1.c2.sdc-hosting.com	AS202567 Secure Data Center Aps
ns1.c3.sdc-hosting.com	38.77.132.2	ns1.c3.nordic-backup.com	AS174 Cogent Communications, LLC
ns1.c4.sdc-hosting.com	38.77.132.3	ns1.c4.nordic-backup.com	AS174 Cogent Communications, LLC

🌍 A Records#

1 records 63ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.75.250.215	86400s	215.ip-51-75-250.eu	AS16276	OVH SAS	51.75.0.0/16	🇫🇷 France	—

📧 MX Records#

3 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail1.c1.sdc-hosting.com	185.152.201.6 185.152.201.6 185.152.201.6	mailrelay1.c1.sdc-hosting.com mail1.c1.securedatacenter.dk mail1.c1.sdc-hosting.com	AS202567 Secure Data Center Aps AS202567 Secure Data Center Aps AS202567 Secure Data Center Aps
10	86400s	mail1.c2.sdc-hosting.com	185.152.200.6 185.152.200.6 185.152.200.6	mail1.c2.securedatacenter.dk mail1.c2.sdc-hosting.com mailrelay1.c2.sdc-hosting.com	AS202567 Secure Data Center Aps AS202567 Secure Data Center Aps AS202567 Secure Data Center Aps
20	86400s	mail1.c3.sdc-hosting.com	38.77.132.4	mail1.c3.sdc-hosting.com	AS174 Cogent Communications, LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 05:33:32

www	185.20.205.16 (AS48854) (address records, no CNAME)
www vs bare domain	Same network esl-foreningen.dk: 185.20.205.16 (AS48854) www.esl-foreningen.dk: 185.20.205.16 (AS48854)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

342ms

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

🏷️ SOA#

310ms

Field	Value
Serial	95
Primary NS (MNAME)	ns1.c1.sdc-hosting.com
Responsible (RNAME)	support@sdc-hosting.com
Refresh	900s
Retry	300s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-18 09:37:43

Field	Value
Registrar	Simply.com A/S
Registered	2000-08-17
Expires	2027-09-30 (345d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
esl.dk	Simply.com A/S
eslforeningen.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

315ms

63ms

61ms

AAAA

60ms

TXT

462ms

CAA

184ms

HTTPS

309ms

TLSA

191ms

SOA

310ms

MTA-STS

569ms

DNSSEC

342ms

SRV

438ms

Total

1419ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-28 05:25:31	735ms	4 NS 1 A 3 MX	🔓 Insecure
2026-07-03 00:08:59	4651ms	4 NS 1 A 3 MX	🔓 Insecure
2026-06-27 23:57:41 shown	1419ms	4 NS 1 A 3 MX	🔓 Insecure
2026-06-20 15:08:29	1255ms	4 NS 1 A 3 MX	🔓 Insecure
2026-06-17 08:25:19	507ms	4 NS 1 A 3 MX	🔓 Insecure
2026-06-17 08:24:26	722ms	4 NS 1 A 3 MX	🔓 Insecure