chatsystems.dk

📜 Historical scan 2026-08-27 16:39:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

chatsystems.dk is a .dk domain served by 2 nameservers (dee.ns.cloudflare.com, marty.ns.cloudflare.com). It was registered on 28 August 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.25.139 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, 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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
dee.ns.cloudflare.com	108.162.192.93 172.64.32.93 173.245.58.93 2606:4700:50::adf5:3a5d 2803:f800:50::6ca2:c05d 2a06:98c1:50::ac40:205d	dee.ns.cloudflare.com dee.ns.cloudflare.com dee.ns.cloudflare.com dee.ns.cloudflare.com dee.ns.cloudflare.com dee.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
marty.ns.cloudflare.com	108.162.193.204 172.64.33.204 173.245.59.204 2606:4700:58::adf5:3bcc 2803:f800:50::6ca2:c1cc 2a06:98c1:50::ac40:21cc	marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.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 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.25.139	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.134.73	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.134.73
🔶 Autoconfig	104.21.25.139

🔷 AAAA Records (IPv6)#

2 records 26ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:198b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:8649	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.25.139,172.67.134.73 ech=AEX+DQBBvAAgACAjBvVHkFpqArpRl920aDwCdfppSK52abJazKltW9VlRAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:198b,2606:4700:3036::ac43:8649

📝 TXT Records#

1 records 154ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.chatsystems.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 2026-10-08 03:53:00

www	104.21.25.139 172.67.134.73 2606:4700:3030::6815:198b 2606:4700:3036::ac43:8649 (AS13335) (address records, no CNAME)
www vs bare domain	Same network chatsystems.dk: 104.21.25.139 172.67.134.73 2606:4700:3030::6815:198b 2606:4700:3036::ac43:8649 (AS13335) www.chatsystems.dk: 104.21.25.139 172.67.134.73 2606:4700:3030::6815:198b 2606:4700:3036::ac43:8649 (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 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#

99ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2413314509
Primary NS (MNAME)	dee.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-18 02:37:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-08-28
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

26ms

AAAA

26ms

TXT

154ms

CAA

32ms

HTTPS

32ms

TLSA

50ms

SOA

0ms

MTA-STS

40ms

DNSSEC

99ms

SRV

54ms

Total

528ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 02:33:53	714ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-29 01:57:28	628ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-23 23:50:44	618ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-06 22:31:40	1312ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-02 01:20:44	641ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-27 16:39:26 shown	528ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-24 15:24:37	3240ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-11 20:39:09	4920ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-04 10:58:31	1603ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-20 00:34:48	1005ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-27 09:05:56	833ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-26 08:09:44	698ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-16 20:26:02	513ms	2 NS 2 A 0 MX	🔒 Secure