esa-bic.dk

Records from scan: 2026-10-14 20:21:22 · 1600ms total · last checked 2026-10-17 21:40 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

esa-bic.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 May 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.38.84.65 is hosted by FSKNET-DK Forskningsnettet - Danish network for Research and Education (AS1835) in Denmark. Mail is handled by mx1.spamfilter.cc, mx2.spamfilter.cc and 1 more. The zone is DNSSEC-signed and validates, has no 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 29ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
192.38.84.65	43200s	redirector.ait.dtu.dk	AS1835	FSKNET-DK Forskningsnettet - Danish network for Research and Education	192.38.0.0/17	🇩🇰 Denmark	Brønshøj

📧 MX Records#

3 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	mx1.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
10	43200s	mx2.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
20	43200s	mx3.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	redirector.ait.dtu.dk → 192.38.84.65
🔶 Autoconfig	redirector.ait.dtu.dk → 192.38.84.65

🔷 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#

checked 2026-10-14 20:21:22

www CNAME	redirector.ait.dtu.dk (all on dtu.dk) → 192.38.84.65 (AS1835)
www vs bare domain	Same network esa-bic.dk: 192.38.84.65 (AS1835) www.esa-bic.dk: 192.38.84.65 (AS1835)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.esa-bic.dk	redirector.ait.dtu.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

102ms

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

🏷️ SOA#

45ms

Field	Value
Serial	2026101301
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-09 05:22:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-05-28
Expires	2027-05-31 (225d)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

28ms

37ms

AAAA

27ms

TXT

227ms

CAA

32ms

HTTPS

34ms

TLSA

90ms

SOA

45ms

MTA-STS

79ms

DNSSEC

102ms

SRV

191ms

Total

1600ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 20:21:22 shown	1600ms	2 NS 1 A 3 MX	🔒 Secure
2026-10-09 05:18:57	2401ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-30 03:33:44	4044ms	2 NS 1 A 3 MX	🔒 Secure
2026-07-02 01:22:32	1228ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-17 08:15:26	1001ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-17 08:15:18	796ms	2 NS 1 A 3 MX	🔒 Secure