anthrax.dk

📜 Historical scan 2026-08-06 19:50:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

anthrax.dk is a .dk domain served by 2 nameservers (becky.ns.cloudflare.com, cleo.ns.cloudflare.com). It was registered on 25 November 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.21.233 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, smtp.google.com and 6 more. The zone is not DNSSEC-signed, has no 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 122ms

Nameserver	IP addresses	PTR	ASN / ISP
becky.ns.cloudflare.com	108.162.192.73 172.64.32.73 173.245.58.73 2606:4700:50::adf5:3a49 2803:f800:50::6ca2:c049 2a06:98c1:50::ac40:2049	becky.ns.cloudflare.com becky.ns.cloudflare.com becky.ns.cloudflare.com becky.ns.cloudflare.com becky.ns.cloudflare.com becky.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
cleo.ns.cloudflare.com	108.162.193.89 172.64.33.89 173.245.59.89 2606:4700:58::adf5:3b59 2803:f800:50::6ca2:c159 2a06:98c1:50::ac40:2159	cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.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 237ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.21.233	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.200.246	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

8 records 101ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	142.250.147.27 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
1	300s	smtp.google.com	142.250.147.26 142.250.147.27 142.251.9.26 142.251.9.27 2a00:1450:4025:c01::1a 2a00:1450:4025:c01::1b 2a00:1450:4025:c03::1a 2a00:1450:4025:c03::1b	rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-in-f27.1e100.net 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 AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	aspmx2.googlemail.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	aspmx3.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 144ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:15e9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:c8f6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 136ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.21.233,172.67.200.246 ech=AEX+DQBBGQAgACBDNAo1yXwJ1Gkk+N6cJLUWAOp/M4T2IZz+lSEBd0BQPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:15e9,2606:4700:3035::ac43:c8f6

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 14:59:12

www	104.21.21.233 172.67.200.246 2606:4700:3030::6815:15e9 2606:4700:3035::ac43:c8f6 (AS13335) (address records, no CNAME)
www vs bare domain	Same network anthrax.dk: 104.21.21.233 172.67.200.246 2606:4700:3030::6815:15e9 2606:4700:3035::ac43:c8f6 (AS13335) www.anthrax.dk: 104.21.21.233 172.67.200.246 2606:4700:3030::6815:15e9 2606:4700:3035::ac43:c8f6 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

237ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411072904
Primary NS (MNAME)	becky.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 15:10:47

Field	Value
Registrar	Domeneshop AS
Registered	2015-11-25
Expires	2027-11-30 (409d)

📋 WHOIS#

⏱️ Lookup Timing#

122ms

237ms

101ms

AAAA

144ms

TXT

314ms

CAA

103ms

HTTPS

136ms

TLSA

338ms

SOA

0ms

MTA-STS

115ms

DNSSEC

237ms

SRV

223ms

Total

2401ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 14:59:11	8711ms	2 NS 2 A 8 MX	🔓 Insecure
2026-09-30 08:45:06	1430ms	2 NS 2 A 8 MX	🔓 Insecure
2026-09-04 21:13:04	9836ms	2 NS 2 A 8 MX	🔓 Insecure
2026-08-11 22:26:32	8332ms	2 NS 2 A 8 MX	🔓 Insecure
2026-08-09 20:23:29	10324ms	2 NS 2 A 8 MX	🔓 Insecure
2026-08-06 19:50:01 shown	2401ms	2 NS 2 A 8 MX	🔓 Insecure
2026-06-20 19:33:17	2503ms	2 NS 2 A 8 MX	🔓 Insecure
2026-06-20 18:20:47	1131ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 12:51:04	2977ms	2 NS 2 A 8 MX	🔓 Insecure