511dk.dk

📜 Historical scan 2026-08-24 21:01:45 · ← 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 40ms

Nameserver	IP addresses	PTR	ASN / ISP
abby.ns.cloudflare.com	108.162.192.100 172.64.32.100 173.245.58.100 2606:4700:50::adf5:3a64 2803:f800:50::6ca2:c064 2a06:98c1:50::ac40:2064	abby.ns.cloudflare.com abby.ns.cloudflare.com abby.ns.cloudflare.com abby.ns.cloudflare.com abby.ns.cloudflare.com abby.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
olof.ns.cloudflare.com	108.162.195.51 162.159.44.51 172.64.35.51 2606:4700:58::a29f:2c33 2803:f800:50::6ca2:c333 2a06:98c1:50::ac40:2333	olof.ns.cloudflare.com olof.ns.cloudflare.com olof.ns.cloudflare.com olof.ns.cloudflare.com olof.ns.cloudflare.com olof.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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.28.16	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.170.41	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.28.16
🔶 Autoconfig	104.21.28.16

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:1c10	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:aa29	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 52ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.28.16,172.67.170.41 ech=AEX+DQBB9AAgACDGsaM394fQZDa41e7Pk5XsMeXXi0zLY40wG+6T/TjyIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:1c10,2606:4700:3033::ac43:aa29

📝 TXT Records#

1 records 163ms

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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.511dk.dk	6N2upi-XHMCbVH1lElVyHQMmF6VMPzqAgEsqG9uC1_c
TXT	_acme-challenge.511dk.dk	MpNH1G9mmacqdR2dwXFiCe4AXN1ypYAR5l9W6aKifmk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

115ms

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	2413066863
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#

40ms

32ms

31ms

AAAA

31ms

TXT

163ms

CAA

39ms

HTTPS

52ms

TLSA

95ms

SOA

0ms

MTA-STS

88ms

DNSSEC

115ms

SRV

85ms

Total

750ms

🕐 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 shown	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	1222ms	2 NS 2 A 0 MX	🔓 Insecure