sert.dk

📜 Historical scan 2026-06-19 16:00:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sert.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 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#

3 records 55ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dns.services	195.242.131.6 2001:67c:564:ffff::11	ns1.dns.services ns1.dns.services	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.dns.services	2a00:1b18:2:3:3::2 62.69.152.37	ns2.dns.services 37.34-46.152.69.62.in-addr.arpa	AS47527 DLX A/S AS47527 DLX A/S
ns3.dns.services	185.55.197.53	ns3.dns.services	AS60153 Inpadi ApS

🌍 A Records#

🌍

No A records found

📧 MX Records#

7 records 96ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	aspmx.l.google.com	142.251.168.27 2a00:1450:4010:c09::1b 2a00:1450:4010:c09::1b	wh-in-f27.1e100.net lk-in-f27.1e100.net lk-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	3600s	alt1.aspmx.l.google.com	172.253.158.27 2404:6800:4000:1025::1a	so-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	3600s	alt2.aspmx.l.google.com	142.251.127.26 2404:6800:4003:c26::1b	lcfrai-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx2.googlemail.com	192.178.211.26 2404:6800:4003:c26::1b	lcbomp-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx3.googlemail.com	172.253.158.26 2404:6800:4008:c01::1b	so-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx4.googlemail.com	192.178.230.27 2404:6800:4008:c01::1a	yunrtab-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	3600s	aspmx5.googlemail.com	192.178.230.27 2404:6800:400b:c01b::1a	yunrtab-in-f27.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google 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 2026-10-15 06:11:52

www	NXDOMAIN
www vs bare domain	Neither resolves sert.dk: no address www.sert.dk: no address
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

91ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

107ms

Field	Value
Serial	2024042212
Primary NS (MNAME)	ns1.dns.services
Responsible (RNAME)	post@dns.services
Refresh	10800s
Retry	3600s
Expire	1814400s
Minimum (neg-cache TTL)	7200s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

55ms

109ms

96ms

AAAA

48ms

TXT

333ms

CAA

48ms

HTTPS

66ms

TLSA

103ms

SOA

107ms

MTA-STS

48ms

DNSSEC

91ms

SRV

147ms

Total

842ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 18:20:58	707ms	3 NS 0 A 7 MX	🔒 Secure
2026-08-26 15:48:30	980ms	3 NS 0 A 7 MX	🔒 Secure
2026-06-27 14:51:43	1480ms	3 NS 0 A 7 MX	🔒 Secure
2026-06-21 22:45:03	857ms	3 NS 0 A 7 MX	🔒 Secure
2026-06-19 16:00:54 shown	842ms	3 NS 0 A 7 MX	🔒 Secure
2026-06-17 13:45:42	3934ms	3 NS 0 A 7 MX	🔒 Secure