bsidesaarhus.dk

📜 Historical scan 2026-06-16 17:30:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bsidesaarhus.dk is a .dk domain served by 2 nameservers (liv.ns.cloudflare.com, scott.ns.cloudflare.com). It was registered on 4 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.70.35 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by smtp.google.com. 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 27ms

Nameserver	IP addresses	PTR	ASN / ISP
liv.ns.cloudflare.com	—	—	—
scott.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 24ms

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

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	smtp.google.com	142.250.147.26 142.250.147.27 142.251.9.26 142.251.9.27	rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 28ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4623	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:db1e	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 30ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.70.35,172.67.219.30 ech=AEX+DQBB6gAgACBAk7biNGguDhfElDNDlBhA4bndbZdx+H8iOS6FUr6nJQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4623,2606:4700:3037::ac43:db1e

📝 TXT Records#

2 records 124ms

TXT Record
google-site-verification=QNGqDve8v3G_DMKgIBiujL68-IB-CADCfayo9bqXklg
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (bsidesaarhus.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.bsidesaarhus.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:4360e03b402d4a1ea1155be46b600393@dmarc-reports.cloudflare.net

📬 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 2026-10-07 21:44:34

www	104.21.70.35 172.67.219.30 2606:4700:3034::ac43:db1e 2606:4700:3037::6815:4623 (AS13335) (address records, no CNAME)
www vs bare domain	Same network bsidesaarhus.dk: 104.21.70.35 172.67.219.30 2606:4700:3034::ac43:db1e 2606:4700:3037::6815:4623 (AS13335) www.bsidesaarhus.dk: 104.21.70.35 172.67.219.30 2606:4700:3034::ac43:db1e 2606:4700:3037::6815:4623 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	—	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#

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

🔐 DNSSEC#

122ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2406421909
Primary NS (MNAME)	liv.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 09:01:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-02-04
Expires	2027-02-03 (108d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

27ms

24ms

29ms

AAAA

28ms

TXT

124ms

CAA

28ms

HTTPS

30ms

TLSA

62ms

SOA

27ms

MTA-STS

42ms

DNSSEC

122ms

SRV

0ms

Total

556ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 21:40:48	3166ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-16 16:32:20	2581ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-01 06:16:35	10225ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-30 16:34:01	1779ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-20 04:56:20	3447ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-27 02:01:40	17300ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-19 04:17:24	1991ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-02 19:56:10	1447ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 12:06:00	1021ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 18:45:10	5576ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 17:41:29	1955ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 17:33:22	3596ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 17:30:03 shown	556ms	2 NS 2 A 1 MX	🔓 Insecure