sentinel-support.dk

📜 Historical scan 2026-08-23 22:05:53  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sentinel-support.dk is a .dk domain served by 2 nameservers (braden.ns.cloudflare.com, sarah.ns.cloudflare.com). It was registered on 27 December 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.193.123.52 is hosted by Itm8 A/S (AS42903) in Denmark. Mail is handled by mail.sentinel-support.dk. The zone is DNSSEC-signed and validates, publishes a 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   38ms

🌍 A Records#

1 records   34ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.193.123.52 300s — AS42903 Itm8 A/S 185.193.120.0/22 🇩🇰 Denmark Copenhagen

📧 MX Records#

1 records   34ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mail.sentinel-support.dk 185.193.123.50 — AS42903 Itm8 A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   283ms
TXT Record
_globalsign-domain-verification=seBAD0Y0igbvhfiNcZeshmTOhF_LPEbwWfHD5AVrSh
v=spf1 ip4:152.115.180.58 ip4:185.193.123.48/28 mx -all

✉️ SPF#

PolicyRecord (sentinel-support.dk)
-all (hard fail) v=spf1 ip4:152.115.180.58 ip4:185.193.123.48/28 mx -all

📨 DMARC#

PolicyRecord (_dmarc.sentinel-support.dk)
p=quarantine v=DMARC1; p=quarantine; pct=100;

📬 MTA-STS#

142ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID20250331T120000
max_age604800s
Policy MXmail.sentinel-support.dk

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

12 records   47ms

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 17:04:28
www185.193.123.52 (AS42903) (address records, no CNAME)
www vs bare domainSame network
sentinel-support.dk: 185.193.123.52 (AS42903)
www.sentinel-support.dk: 185.193.123.52 (AS42903)
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
mail — RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records   112ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.sentinel-support.dk DANE-EE · SPKI · SHA-256 1F0EB1535BC4F676E4821A7C2BBDD9A9…

🔐 DNSSEC#

145ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2412967374
Primary NS (MNAME)braden.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-10 16:36:21
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2019-12-27
Expires2026-12-31 (71d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
38ms
A
34ms
MX
34ms
AAAA
42ms
TXT
283ms
CAA
47ms
HTTPS
36ms
TLSA
112ms
SOA
0ms
MTA-STS
142ms
DNSSEC
145ms
SRV
157ms
Total
1221ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-11 17:04:28 2164ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-10 16:23:49 1263ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-09 11:51:44 1994ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-29 04:44:08 2596ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-24 02:25:41 13480ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-23 05:12:44 1931ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-23 22:05:53 shown 1221ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-16 05:23:19 3966ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-02 23:22:58 9008ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-06 22:22:42 1414ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-26 11:51:01 1026ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-25 15:38:50 2090ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-18 07:37:37 1106ms 2 NS 1 A 1 MX 🔒 Secure
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