4y.dk

📜 Historical scan 2026-08-31 20:35:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4y.dk is a .dk domain served by 2 nameservers (cleo.ns.cloudflare.com, nia.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.62.189 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.firstimpact.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 103ms

Nameserver	IP addresses	PTR	ASN / ISP
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.
nia.ns.cloudflare.com	108.162.192.210 172.64.32.210 173.245.58.210 2606:4700:50::adf5:3ad2 2803:f800:50::6ca2:c0d2 2a06:98c1:50::ac40:20d2	nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.ns.cloudflare.com nia.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 95ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.62.189	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.138.112	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 112ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
3	300s	mx.firstimpact.com	139.162.152.121 2a01:7e01:e001:9a8::1	vps.fiw.dk vps.fiw.dk	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud

🔷 AAAA Records (IPv6)#

2 records 103ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:8a70	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:3ebd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 107ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.62.189,172.67.138.112 ech=AEX+DQBBTwAgACAOmWlPq4z5qUDpGw2hdQCkGJB2jlJGHIBUXoIPWZLTWQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:8a70,2606:4700:3037::6815:3ebd

📝 TXT Records#

1 records 374ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (4y.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.4y.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:b2863001a5f14087aeb6bff2d4520187@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 16:36:13

www	104.21.62.189 172.67.138.112 2606:4700:3034::ac43:8a70 2606:4700:3037::6815:3ebd (AS13335) (address records, no CNAME)
www vs bare domain	Same network 4y.dk: 104.21.62.189 172.67.138.112 2606:4700:3034::ac43:8a70 2606:4700:3037::6815:3ebd (AS13335) www.4y.dk: 104.21.62.189 172.67.138.112 2606:4700:3034::ac43:8a70 2606:4700:3037::6815:3ebd (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

🔎 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#

238ms

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	2413677888
Primary NS (MNAME)	cleo.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

103ms

95ms

112ms

AAAA

103ms

TXT

374ms

CAA

97ms

HTTPS

107ms

TLSA

150ms

SOA

0ms

MTA-STS

135ms

DNSSEC

238ms

SRV

152ms

Total

1788ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 13:04:26	1047ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-09 03:33:22	2225ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-31 20:35:54 shown	1788ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 22:39:52	749ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 14:41:23	1000ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 22:39:36	1208ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-16 09:06:41	1152ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-08 16:12:53	1899ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 09:22:08	1022ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 12:45:51	608ms	2 NS 2 A 1 MX	🔓 Insecure