redsystem.dk

📜 Historical scan 2026-08-16 10:15:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

redsystem.dk is a .dk domain served by 2 nameservers (ada.ns.cloudflare.com, ivan.ns.cloudflare.com). It was registered on 15 February 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.71.158 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ada.ns.cloudflare.com	108.162.192.54 172.64.32.54 173.245.58.54 2606:4700:50::adf5:3a36 2803:f800:50::6ca2:c036 2a06:98c1:50::ac40:2036	ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ivan.ns.cloudflare.com	108.162.193.120 172.64.33.120 173.245.59.120 2606:4700:58::adf5:3b78 2803:f800:50::6ca2:c178 2a06:98c1:50::ac40:2178	ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.71.158	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.146.87	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	2a00:1450:4010:c06::1a 2a00:1450:4010:c06::1a 64.233.164.27	lj-in-f26.1e100.net lj-in-x1a.1e100.net lf-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1b	lcbomp-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:479e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:9257	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 46ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.71.158,172.67.146.87 ech=AEX+DQBBQQAgACC3LLV29zsUd4APi5d5/7LgGDKjaqs7w3rmXi759yogdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:479e,2606:4700:3036::ac43:9257

📝 TXT Records#

2 records 254ms

TXT Record
1password-site-verification=XBGXQG627ZEZ5DRZW63MSP2ZTE
v=spf1 include:_spf.google.com -all

✉️ SPF#

Policy	Record (redsystem.dk)
-all (hard fail)	v=spf1 include:_spf.google.com -all

📨 DMARC#

Policy	Record (_dmarc.redsystem.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rf=afrf; fo=1:d:s; pct=100; ri=86400; adkim=s; aspf=s; rua=mailto:66645184cc164baa8bad747f953710e1@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 2026-10-14 23:23:47

www	104.21.71.158 172.67.146.87 2606:4700:3030::6815:479e 2606:4700:3036::ac43:9257 (AS13335) (address records, no CNAME)
www vs bare domain	Same network redsystem.dk: 104.21.71.158 172.67.146.87 2606:4700:3030::6815:479e 2606:4700:3036::ac43:9257 (AS13335) www.redsystem.dk: 104.21.71.158 172.67.146.87 2606:4700:3030::6815:479e 2606:4700:3036::ac43:9257 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

138ms

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	2412306664
Primary NS (MNAME)	ada.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-14 23:53:14

Field	Value
Registrar	Ovh
Registered	2021-02-15
Expires	2027-02-28 (127d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

41ms

40ms

AAAA

39ms

TXT

254ms

CAA

57ms

HTTPS

46ms

TLSA

170ms

SOA

0ms

MTA-STS

48ms

DNSSEC

138ms

SRV

8079ms

Total

9971ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 23:23:47	1968ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-01 07:09:08	1013ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-24 04:20:07	1023ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-18 23:37:49	1480ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-03 12:59:35	9624ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-31 22:23:24	9910ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-28 08:42:36	1122ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 14:56:45	715ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-16 10:15:41 shown	9971ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-04 05:22:31	9337ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-22 17:03:28	1927ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-12 18:11:03	1774ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-02 09:54:47	2998ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 16:59:01	955ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 14:33:49	2201ms	2 NS 2 A 5 MX	🔓 Insecure