bsidesaarhus.dk

📜 Historical scan 2026-09-16 16:32:20 · ← 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 36ms

Nameserver	IP addresses	PTR	ASN / ISP
liv.ns.cloudflare.com	108.162.192.188 172.64.32.188 173.245.58.188 2606:4700:50::adf5:3abc 2803:f800:50::6ca2:c0bc 2a06:98c1:50::ac40:20bc	liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
scott.ns.cloudflare.com	108.162.193.230 172.64.33.230 173.245.59.230 2606:4700:58::adf5:3be6 2803:f800:50::6ca2:c1e6 2a06:98c1:50::ac40:21e6	scott.ns.cloudflare.com scott.ns.cloudflare.com scott.ns.cloudflare.com scott.ns.cloudflare.com scott.ns.cloudflare.com scott.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.70.35	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.219.30	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	smtp.google.com	142.251.1.26 142.251.1.27 173.194.73.27 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1b 2a00:1450:4010:c01::1b 2a00:1450:4010:c1e::1a 2a00:1450:4010:c1e::1b 64.233.161.26 64.233.161.27	lb-in-f26.1e100.net lb-in-f27.1e100.net lq-in-f27.1e100.net lh-in-x1a.1e100.net lh-in-f26.1e100.net lh-in-f27.1e100.net lh-in-x1b.1e100.net lb-in-f26.1e100.net lb-in-f27.1e100.net lh-in-f26.1e100.net lh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 48ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:db1e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:4623	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 33ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.70.35,172.67.219.30 ech=AEX+DQBBoQAgACD+e2S6IetnuhaljaMiPjyI4bJnjDikRM91us119cr5JAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:db1e,2606:4700:3037::6815:4623

📝 TXT Records#

2 records 202ms

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#

117ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414985960
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#

36ms

41ms

AAAA

48ms

TXT

202ms

CAA

34ms

HTTPS

33ms

TLSA

101ms

SOA

0ms

MTA-STS

59ms

DNSSEC

117ms

SRV

63ms

Total

2581ms

🕐 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 shown	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	556ms	2 NS 2 A 1 MX	🔓 Insecure