flexrens.dk is a .dk domain served by 2 nameservers (norm.ns.cloudflare.com, sara.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.36.96 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx10.antispam.mailspamprotection.com, mx20.antispam.mailspamprotection.com and 1 more. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.36.96 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.191.199 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx10.antispam.mailspamprotection.com | 34.149.79.66 | 66.79.149.34.bc.googleusercontent.com | AS396982 Google LLC |
| 20 | 300s | mx20.antispam.mailspamprotection.com | 34.120.156.61 | 61.156.120.34.bc.googleusercontent.com | AS396982 Google LLC |
| 30 | 300s | mx30.antispam.mailspamprotection.com | 34.111.121.216 | 216.121.111.34.bc.googleusercontent.com | AS396982 Google LLC |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.36.96 |
| 🔶 Autoconfig | 104.21.36.96 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:bfc7 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:2460 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.36.96,172.67.191.199 ech=AEX+DQBBvQAgACCxHbzMEiwrKnDlt/rfqt7J98khnzl/iGurVJu8dCnFRAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:bfc7,2606:4700:3035::6815:2460 |
| TXT Record |
|---|
| google-site-verification=uL92JoIHGXmXeQbUCLjMeQVfyEGx1Ab_9x4Uz5CS3QI |
| v=spf1 +a +mx +ip4:35.207.79.210 include:_spf.mailspamprotection.com ~all |
| Policy | Record (flexrens.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +a +mx +ip4:35.207.79.210 include:_spf.mailspamprotection.com ~all |
| www | 104.21.36.96 172.67.191.199 2606:4700:3031::ac43:bfc7 2606:4700:3035::6815:2460 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network flexrens.dk: 104.21.36.96 172.67.191.199 2606:4700:3031::ac43:bfc7 2606:4700:3035::6815:2460 (AS13335) www.flexrens.dk: 104.21.36.96 172.67.191.199 2606:4700:3031::ac43:bfc7 2606:4700:3035::6815:2460 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 3/10 · 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 | 2417168690 |
| Primary NS (MNAME) | norm.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-20 22:05:11 shown | 1121ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-12 03:04:32 | 2204ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-25 09:00:35 | 706ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-10 17:31:53 | 908ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-14 04:34:47 | 1429ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-12 20:37:56 | 2069ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-15 05:32:23 | 1359ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-22 04:34:46 | 733ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 09:44:25 | 644ms | 2 NS 2 A 3 MX | 🔓 Insecure |