511dk.dk

📜 Historical scan 2026-06-16 12:58:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

511dk.dk is a .dk domain served by 2 nameservers (abby.ns.cloudflare.com, olof.ns.cloudflare.com). It was registered on 28 April 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.28.16 is hosted by Cloudflare, Inc. (AS13335). 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 74ms

Nameserver	IP addresses	PTR	ASN / ISP
abby.ns.cloudflare.com	—	—	—
olof.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 114ms

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

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 148ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:1c10	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:aa29	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 66ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.28.16,172.67.170.41 ech=AEX+DQBBzAAgACCRSl2GarTD7edzme/SRSjBGfCZcUyEhedgk/e1csdNQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:1c10,2606:4700:3033::ac43:aa29

📝 TXT Records#

1 records 251ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (511dk.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.511dk.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-10 04:06:42

www	104.21.28.16 172.67.170.41 2606:4700:3033::6815:1c10 2606:4700:3033::ac43:aa29 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 511dk.dk: 104.21.28.16 172.67.170.41 2606:4700:3033::6815:1c10 2606:4700:3033::ac43:aa29 (AS13335) www.511dk.dk: 104.21.28.16 172.67.170.41 2606:4700:3033::6815:1c10 2606:4700:3033::ac43:aa29 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

201ms

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

🏷️ SOA#

91ms

Field	Value
Serial	2405414570
Primary NS (MNAME)	abby.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 14:29:16

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-04-28
Expires	2030-07-31 (1380d)

📋 WHOIS#

⏱️ Lookup Timing#

74ms

114ms

68ms

AAAA

148ms

TXT

251ms

CAA

63ms

HTTPS

66ms

TLSA

123ms

SOA

91ms

MTA-STS

102ms

DNSSEC

201ms

SRV

0ms

Total

1222ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 00:58:31	910ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 14:46:16	670ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-04 06:05:44	1074ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-26 13:33:27	487ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-24 21:01:45	750ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-26 08:53:32	16772ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 01:58:28	2159ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-18 23:31:31	936ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 12:58:08 shown	1222ms	2 NS 2 A 0 MX	🔓 Insecure