thesustainableit.dk

📜 Historical scan 2026-06-25 02:58:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

thesustainableit.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 23 January 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.249.12 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 314ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 353ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.237.249.12	3600s	lb1.builder.nu	AS48854	team.blue Denmark A/S	212.237.248.0/23	🇩🇰 Denmark	—

📧 MX Records#

5 records 282ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.127.26 2a00:1450:4001:c21::1a	lcfrai-in-f26.1e100.net lcfrai-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	212.237.249.12
🔶 Autoconfig	212.237.249.12

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 769ms

TXT Record
google-site-verification=_PB0Df_xq7OwdLT0Dsbn6pjaz7hZHLsBIX25YRO8HVw

✉️ 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 2026-10-08 01:39:54

www	212.237.249.12 (AS48854) (address records, no CNAME)
www vs bare domain	Same network thesustainableit.dk: 212.237.249.12 (AS48854) www.thesustainableit.dk: 212.237.249.12 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

411ms

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

🏷️ SOA#

361ms

Field	Value
Serial	2025081702
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-07 09:54:56

Field	Value
Registrar	DANDOMAIN A/S
Registered	2025-01-23
Expires	2027-01-22 (91d)

📋 WHOIS#

⏱️ Lookup Timing#

314ms

353ms

282ms

AAAA

304ms

TXT

769ms

CAA

373ms

HTTPS

338ms

TLSA

233ms

SOA

361ms

MTA-STS

362ms

DNSSEC

411ms

SRV

462ms

Total

2611ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 21:09:37	623ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-15 00:58:02	603ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-27 17:23:43	949ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-25 02:58:33 shown	2611ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-20 03:45:29	10216ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-17 20:58:34	815ms	2 NS 1 A 5 MX	🔒 Secure