bilstrom.dk

📜 Historical scan 2026-06-16 14:36:16 · ← 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 54ms

Nameserver	IP addresses	PTR	ASN / ISP
jarred.ns.cloudflare.com	—	—	—
mia.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.65.15	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.65	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1000	—	mail.tutanota.de	185.205.69.211 185.205.69.213 185.205.69.214	mail.w11.tutanota.de mail.w13.tutanota.de mail.w14.tutanota.de	AS210909 Tutao GmbH AS210909 Tutao GmbH AS210909 Tutao GmbH

🔷 AAAA Records (IPv6)#

2 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:9d41	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:410f	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 61ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.65.15,172.67.157.65 ech=AEX+DQBBkQAgACClJENMjJCKs8qIfd+04OvwQP4hU5mfUQK6PmcbIChPAAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9d41,2606:4700:3037::6815:410f

📝 TXT Records#

2 records 169ms

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

✉️ SPF#

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

📨 DMARC#

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

📬 MTA-STS#

331ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20190723
max_age	86400s
Policy MX	—

📈 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

www	104.21.65.15 172.67.157.65 2606:4700:3031::ac43:9d41 2606:4700:3033::6815:410f (AS13335) (address records, no CNAME)
www vs bare domain	Same network bilstrom.dk: 104.21.65.15 172.67.157.65 2606:4700:3031::ac43:9d41 2606:4700:3033::6815:410f (AS13335) www.bilstrom.dk: 104.21.65.15 172.67.157.65 2606:4700:3031::ac43:9d41 2606:4700:3033::6815:410f (AS13335)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
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 65ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.tutanota.de	DANE-EE · Full cert · SHA-256	D141F8F3A4AAC2E4D2677AAFCC723D8E…

🔐 DNSSEC#

151ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

57ms

Field	Value
Serial	2406297426
Primary NS (MNAME)	jarred.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 07:54:06

Field	Value
Registrar	DANDOMAIN A/S
Registered	2025-11-28
Expires	2026-11-27 (41d)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

60ms

AAAA

56ms

TXT

169ms

CAA

56ms

HTTPS

61ms

TLSA

65ms

SOA

57ms

MTA-STS

331ms

DNSSEC

151ms

SRV

0ms

Total

753ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
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	6572ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 14:36:16 shown	753ms	2 NS 2 A 1 MX	🔓 Insecure