tullberg.dk

📜 Historical scan 2026-06-18 00:02:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tullberg.dk is a .dk domain served by 2 nameservers (achiel.ns.cloudflare.com, nola.ns.cloudflare.com). It was registered on 2 August 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 136.243.211.194 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by tullberg.dk. The zone is not DNSSEC-signed, 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 77ms

Nameserver	IP addresses	PTR	ASN / ISP
achiel.ns.cloudflare.com	108.162.195.123 162.159.44.123 172.64.35.123 2606:4700:58::a29f:2c7b 2803:f800:50::6ca2:c37b 2a06:98c1:50::ac40:237b	achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com achiel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
nola.ns.cloudflare.com	108.162.192.212 172.64.32.212 173.245.58.212 2606:4700:50::adf5:3ad4 2803:f800:50::6ca2:c0d4 2a06:98c1:50::ac40:20d4	nola.ns.cloudflare.com nola.ns.cloudflare.com nola.ns.cloudflare.com nola.ns.cloudflare.com nola.ns.cloudflare.com nola.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
136.243.211.194	—	static.194.211.243.136.clients.your-server.de	AS24940	Hetzner Online GmbH	136.243.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	tullberg.dk	136.243.211.194	static.194.211.243.136.clients.your-server.de	AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 144ms

TXT Record
v=spf1 a mx ip4:136.243.211.194 ~all

✉️ SPF#

Policy	Record (tullberg.dk)
~all (soft fail)	v=spf1 a mx ip4:136.243.211.194 ~all

📨 DMARC#

Policy	Record (_dmarc.tullberg.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-09 08:57:21

www CNAME	tullberg.dk (all on tullberg.dk) → 136.243.211.194 (AS24940)
www vs bare domain	Same network tullberg.dk: 136.243.211.194 (AS24940) www.tullberg.dk: 136.243.211.194 (AS24940)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

80ms

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	2406819454
Primary NS (MNAME)	achiel.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 09:10:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-08-02
Expires	2027-08-01 (286d)

📋 WHOIS#

⏱️ Lookup Timing#

77ms

37ms

AAAA

55ms

TXT

144ms

CAA

51ms

HTTPS

56ms

TLSA

97ms

SOA

57ms

MTA-STS

70ms

DNSSEC

80ms

SRV

76ms

Total

647ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 08:57:21	1572ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 06:03:08	650ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-29 20:57:55	595ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-23 07:25:12	1371ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-11 17:49:37	896ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-20 16:26:43	992ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-30 22:03:09	822ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-28 14:32:41	772ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 18:37:39	8192ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 19:01:16	1177ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 00:02:14 shown	647ms	2 NS 1 A 1 MX	🔓 Insecure