h28.dk

📜 Historical scan 2026-08-05 20:05:21  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

h28.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 4 September 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mail.protonmail.ch. 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   36ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   43ms
IPTTLPTRASNISP / OrgCIDRCountryCity
76.76.21.21 3600s — AS16509 Amazon.com, Inc. 76.76.21.0/24 🇺🇸 United States Walnut

📧 MX Records#

1 records   40ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.protonmail.ch 176.119.200.128
185.205.70.128
185.70.42.128		 mail.protonmail.ch
mail.protonmail.ch
mail.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover94.231.109.254
🔶 Autoconfig94.231.109.254

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   69ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

2 records   149ms
TXT Record
google-site-verification=GXzuEJVh_Qtpu_WuOdBAMVo_GUJ37ZQLCcw4LpljLNs
protonmail-verification=4720f39d91e54c4f2d935a215c66892963292f6d

✉️ 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 2026-10-22 07:33:24
www216.198.79.1 64.29.17.65 (AS16509) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔗 TLSA / DANE#

2 records   58ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC#

81ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026073000
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-16 04:07:29
FieldValue
RegistrarSimply.com A/S
Registered2023-09-04
Expires2027-09-03 (315d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
36ms
A
43ms
MX
40ms
AAAA
33ms
TXT
149ms
CAA
54ms
HTTPS
67ms
TLSA
58ms
SOA
0ms
MTA-STS
66ms
DNSSEC
81ms
SRV
69ms
Total
935ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-22 07:33:24 1078ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-09 10:42:01 783ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-30 22:19:44 882ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-08 16:36:54 1730ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-05 20:05:21 shown 935ms 3 NS 1 A 1 MX 🔒 Secure
2026-07-02 10:06:43 1533ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-21 04:17:56 496ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-17 10:47:54 697ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-17 10:41:52 764ms 3 NS 1 A 1 MX 🔒 Secure
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