bilstrom.dk

📜 Historical scan 2026-06-19 13:10:45  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bilstrom.dk is a .dk domain served by 2 nameservers (jarred.ns.cloudflare.com, mia.ns.cloudflare.com). It was registered on 28 November 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.65.15 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.tutanota.de. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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   52ms

🌍 A Records#

2 records   62ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.65.15 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.157.65 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   72ms

🔷 AAAA Records (IPv6)#

2 records   91ms

🔐 HTTPS Records#

1 records   68ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.65.15,172.67.157.65 ech=AEX+DQBByAAgACBPF0m9T8Sj8yd73y9ytnkUxzjCT+nkzQj1abdfYTqFJQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9d41,2606:4700:3037::6815:410f

📝 TXT Records#

2 records   2179ms
TXT Record
t-verify=dd89185437ef568d74f349ee9127b872
v=spf1 include:spf.tutanota.de -all

✉️ SPF#

PolicyRecord (bilstrom.dk)
-all (hard fail) v=spf1 include:spf.tutanota.de -all

📨 DMARC#

PolicyRecord (_dmarc.bilstrom.dk)
p=quarantine v=DMARC1; p=quarantine; adkim=s

📬 MTA-STS#

406ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID20190723
max_age86400s
Policy MXmail.tutanota.de

📈 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 2026-10-07 20:36:04

✍️ DKIM keys#

3 found
SelectorCNAMEKey
mail — RSA · ~2048 bit
s1 s1.domainkey.tutanota.de RSA · ~2048 bit
s2 s2.domainkey.tutanota.de 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   2072ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.tutanota.de DANE-EE · Full cert · SHA-256 D141F8F3A4AAC2E4D2677AAFCC723D8E…

🔐 DNSSEC#

159ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

70ms
FieldValue
Serial2406297426
Primary NS (MNAME)jarred.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-05 07:54:06
FieldValue
RegistrarDANDOMAIN A/S
Registered2025-11-28
Expires2026-11-27 (41d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
52ms
A
62ms
MX
72ms
AAAA
91ms
TXT
2179ms
CAA
65ms
HTTPS
68ms
TLSA
2072ms
SOA
70ms
MTA-STS
406ms
DNSSEC
159ms
SRV
4036ms
Total
6572ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 20:36:04 1295ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-05 07:44:27 1965ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-02 07:06:33 1173ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-21 13:42:48 967ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-13 21:12:57 3245ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-04 23:12:20 1517ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 01:30:04 984ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-09 10:49:42 1717ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-23 03:21:37 10673ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-19 13:10:45 shown 6572ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 14:36:16 753ms 2 NS 2 A 1 MX 🔓 Insecure
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