centeo7.dk
📜 Historical scan 2026-06-16 20:05:56  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   35ms
NameserverIP addressesPTRASN / ISP
christina.ns.cloudflare.com — — —
frank.ns.cloudflare.com — — —
🌍 A Records
🌍
No A records found
📧 MX Records2 records   59ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.improvmx.com 13.37.195.136
15.236.236.160
35.181.18.45		 ec2-13-37-195-136.eu-west-3.compute.amazonaws.com
ec2-15-236-236-160.eu-west-3.compute.amazonaws.com
ec2-35-181-18-45.eu-west-3.compute.amazonaws.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
20 — mx2.improvmx.com 13.36.107.63
13.36.222.39
15.236.61.92		 ec2-13-36-107-63.eu-west-3.compute.amazonaws.com
ec2-13-36-222-39.eu-west-3.compute.amazonaws.com
ec2-15-236-61-92.eu-west-3.compute.amazonaws.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records2 records   128ms
TXT Record
google-site-verification=oxdGuxhYt27c4F4msfy0XvymqEgzGMtsvwqcFo1BMJA
v=spf1 include:spf.improvmx.com ~all
✉️ SPF
PolicyRecord (centeo7.dk)
~all (soft fail) v=spf1 include:spf.improvmx.com ~all
📨 DMARC
PolicyRecord (_dmarc.centeo7.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:7bf50a9693714d169062fbb3b6b68adf@dmarc-reports.cloudflare.net
📬 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 / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC136ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset
🏷️ SOA34ms
FieldValue
Serial2402555302
Primary NS (MNAME)christina.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
35ms
A
36ms
MX
59ms
AAAA
36ms
TXT
128ms
CAA
34ms
HTTPS
38ms
TLSA
57ms
SOA
34ms
MTA-STS
36ms
DNSSEC
136ms
SRV
0ms
Total
614ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-21 03:59:27 9384ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-08-20 03:12:44 9938ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-07-29 19:42:31 2978ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-06-27 04:56:45 931ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-06-23 00:10:03 2047ms 2 NS 0 A 2 MX 🔓 Insecure View
2026-06-16 20:05:56 614ms 2 NS 0 A 2 MX 🔓 Insecure View
dhd.dk [/] search Domains, Hosts & DNS — .dk zone