rentacow.dk is a .dk domain served by 2 nameservers (elma.ns.cloudflare.com, jaziel.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.68.95 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by shandy.hostns.io, mx1.spamfiltering.io and 1 more. The zone is DNSSEC-signed but currently fails validation, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.68.95 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.192.191 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:c0bf | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:445f | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.68.95,172.67.192.191 ech=AEX+DQBBcQAgACCLRAjcukzv4fR8BmTwARacd6cY+leAQVPWIttYUEh6LQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:c0bf,2606:4700:3035::6815:445f |
| TXT Record |
|---|
| ca3-9ed3db18e6d3400ba65b4a0b46c16ae9 |
| v=spf1 ip4:91.204.209.32 +a +mx +include:relay.mailchannels.net -all |
| Policy | Record (rentacow.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:91.204.209.32 +a +mx +include:relay.mailchannels.net -all |
| Policy | Record (_dmarc.rentacow.dk) |
|---|---|
| p=quarantine | v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400 |
| www | 104.21.68.95 172.67.192.191 2606:4700:3030::ac43:c0bf 2606:4700:3032::6815:445f (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network rentacow.dk: 104.21.68.95 172.67.192.191 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.rentacow.dk: 104.21.68.95 172.67.192.191 2606:4700:3030::ac43:c0bf 2606:4700:3032::6815:445f (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'rentacow.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2406796347 |
| Primary NS (MNAME) | elma.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 02:36:31 | 2960ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-01 23:01:55 | 6310ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-24 21:27:39 | 4785ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-23 11:36:24 | 2171ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-05 04:35:12 | 1153ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-11 06:56:52 | 1758ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-08 04:01:26 | 5435ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-23 08:51:37 | 2010ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-22 21:57:27 | 1168ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-19 11:02:54 | 3039ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 16:51:40 shown | 1399ms | 2 NS 2 A 3 MX | ⚠️ Bogus |