ulrich-el.dk
Last scanned: 2026-06-17 22:13:21  ·  1010ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   141ms
NameserverIP addressesPTRASN / 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 Records1 records   141ms
IPTTLPTRASNISP / OrgCIDRCountryCity
37.205.123.226 — — AS42525 — — — —
📧 MX Records2 records   141ms
PriorityTTLMail ServerIP addressesPTRASN
10 — eu-esec-01.heimdalsecurity.com 20.50.183.144
20.50.183.146		 eu-esec-01.heimdalsecurity.com
eu-esec-01.heimdalsecurity.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
10 — eu-esec-02.heimdalsecurity.com 20.50.183.144
20.50.183.146		 eu-esec-01.heimdalsecurity.com
eu-esec-01.heimdalsecurity.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   138ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 10 443 hosting.maack-it.dk
📝 TXT Records1 records   239ms
TXT Record
v=spf1 a a:post.maack-it.dk include:spf-esec.heimdalsecurity.com -all
✉️ SPF
PolicyRecord (ulrich-el.dk)
-all (hard fail) v=spf1 a a:post.maack-it.dk include:spf-esec.heimdalsecurity.com -all
📨 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
🔗 TLSA / DANE2 records   216ms
Service / OwnerTypeCert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com DANE-EE · SPKI · SHA-256 2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com DANE-EE · SPKI · SHA-256 2E8933DD6DB99304A5A9D5C4ECDE7B8E…
🔐 DNSSEC192ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA98ms
FieldValue
Serial2026041201
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
141ms
A
141ms
MX
141ms
AAAA
141ms
TXT
239ms
CAA
129ms
HTTPS
138ms
TLSA
216ms
SOA
98ms
MTA-STS
121ms
DNSSEC
192ms
SRV
138ms
Total
1010ms
dhd.dk [/] search Domains, Hosts & DNS — .dk zone