rvb.dk is a .dk domain served by 2 nameservers (nick.ns.cloudflare.com, rosemary.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.2.195 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mailserver.purelymail.com. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.2.195 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.129.151 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mailserver.purelymail.com | 18.204.123.63 | ec2-18-204-123-63.compute-1.amazonaws.com | AS14618 Amazon.com, Inc. |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:8197 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:2c3 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.2.195,172.67.129.151 ech=AEX+DQBBUAAgACDQMISFk3JhgVXoTRE1WOWUWoNMBle6JY4TVagLITX1IwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:8197,2606:4700:3035::6815:2c3 |
| TXT Record |
|---|
| purelymail_ownership_proof=e8285ece407aa853bb0005ae5d6da34ac53b4cd32450a974e77342a26295cbe272d39e828ffb5c8c233a6356b745dde56d6a587f027c1dc4f92ce5dc4cd0ebc7 |
| v=spf1 include:_spf.purelymail.com ~all |
| Policy | Record (rvb.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.purelymail.com ~all |
| Policy | Record (_dmarc.rvb.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; ruf=mailto:dmarc@purelymail.com |
| www | 104.21.2.195 172.67.129.151 2606:4700:3033::ac43:8197 2606:4700:3035::6815:2c3 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.rvb.dk | NkUHLwnGEOqc0m2zk7ztcDXpxP4wEg9HUvntUqNEi1o |
| TXT | _acme-challenge.rvb.dk | tLLW_JlZHpHxd-MAwbpgSyJ4K9t9cOskskrw0Gc_OyI |
| 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 | 2415964681 |
| Primary NS (MNAME) | nick.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 19:04:28 | 729ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 18:54:33 shown | 917ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 18:40:35 | 9517ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-06 08:43:41 | 10173ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-03 14:54:39 | 1265ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 10:37:20 | 805ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-30 04:22:26 | 1804ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-02 11:45:30 | 860ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 22:42:18 | 893ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 07:26:45 | 2258ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 06:03:25 | 1029ms | 2 NS 2 A 1 MX | 🔓 Insecure |