carsys.dk is a .dk domain served by 2 nameservers (joan.ns.cloudflare.com, lynn.ns.cloudflare.com). It was registered on 16 April 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.94.197 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.unoeuro.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.94.197 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.168.164 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.unoeuro.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:a8a4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:5ec5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.94.197,172.67.168.164 ech=AEX+DQBBLQAgACCNmMdLCzKmU79Wo0uC8E4kObJWHY7AMhLGRj/+W2GoFAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:a8a4,2606:4700:3036::6815:5ec5 |
| TXT Record |
|---|
| v=spf1 include:spf.unoeuro.com ~all |
| Policy | Record (carsys.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.unoeuro.com ~all |
| Policy | Record (_dmarc.carsys.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:postmaster@carsys.dk |
| www | 104.21.94.197 172.67.168.164 2606:4700:3031::ac43:a8a4 2606:4700:3036::6815:5ec5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u3844337.wl088.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u3844337.wl088.sendgrid.net | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 2/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416672179 |
| Primary NS (MNAME) | joan.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2012-04-16 |
| Expires | 2027-04-30 (194d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-05 13:32:34 shown | 732ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 12:18:26 | 690ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 00:01:53 | 709ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-31 12:06:11 | 3100ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-07 21:03:19 | 927ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-25 01:23:02 | 1087ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 16:40:04 | 3010ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 21:33:31 | 53550ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 19:34:12 | 1550ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 19:31:33 | 470ms | 2 NS 2 A 1 MX | 🔓 Insecure |