20er.dk

📜 Historical scan 2026-10-08 03:10:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

20er.dk is a .dk domain served by 2 nameservers (dawn.ns.cloudflare.com, will.ns.cloudflare.com). It was registered on 27 July 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.81.83 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route2.mx.cloudflare.net, route3.mx.cloudflare.net and 1 more. 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 86ms

Nameserver	IP addresses	PTR	ASN / ISP
dawn.ns.cloudflare.com	108.162.192.106 172.64.32.106 173.245.58.106 2606:4700:50::adf5:3a6a 2803:f800:50::6ca2:c06a 2a06:98c1:50::ac40:206a	dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
will.ns.cloudflare.com	108.162.193.149 172.64.33.149 173.245.59.149 2606:4700:58::adf5:3b95 2803:f800:50::6ca2:c195 2a06:98c1:50::ac40:2195	will.ns.cloudflare.com will.ns.cloudflare.com will.ns.cloudflare.com will.ns.cloudflare.com will.ns.cloudflare.com will.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 199ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.81.83	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.140.231	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 185ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
86	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
95	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)#

2 records 209ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:5153	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:8ce7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 151ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.81.83,172.67.140.231 ech=AEX+DQBBFAAgACBHXY+hgrI2NVjWYbVWN2aWZbnJxZOyBznyRiOLIZvWTwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5153,2606:4700:3037::ac43:8ce7

📝 TXT Records#

1 records 465ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (20er.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 DMARC#

Policy	Record (_dmarc.20er.dk)
p=reject	v=DMARC1; p=reject;

📬 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 11:56:23

www	104.21.81.83 172.67.140.231 2606:4700:3031::6815:5153 2606:4700:3037::ac43:8ce7 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 20er.dk: 104.21.81.83 172.67.140.231 2606:4700:3031::6815:5153 2606:4700:3037::ac43:8ce7 (AS13335) www.20er.dk: 104.21.81.83 172.67.140.231 2606:4700:3031::6815:5153 2606:4700:3037::ac43:8ce7 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 569ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…

🔐 DNSSEC#

305ms

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

🏷️ SOA#

154ms

Field	Value
Serial	2416840432
Primary NS (MNAME)	dawn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 12:38:31

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-07-27
Expires	2027-07-31 (287d)

📋 WHOIS#

⏱️ Lookup Timing#

86ms

199ms

185ms

AAAA

209ms

TXT

465ms

CAA

168ms

HTTPS

151ms

TLSA

569ms

SOA

154ms

MTA-STS

228ms

DNSSEC

305ms

SRV

227ms

Total

3869ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 11:56:23	1079ms	2 NS 2 A 3 MX	🔓 Insecure
2026-10-08 03:10:17 shown	3869ms	2 NS 2 A 3 MX	🔓 Insecure
2026-10-03 01:29:18	646ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-05 14:57:03	1657ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-02 01:23:27	965ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-28 01:40:35	1043ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-27 09:03:59	9988ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-12 15:26:25	9986ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-09 20:47:39	6220ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-02 00:23:31	1140ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-16 12:42:42	1201ms	2 NS 2 A 3 MX	🔓 Insecure