visblue.dk is a .dk domain served by 2 nameservers (alex.ns.cloudflare.com, etta.ns.cloudflare.com). It was registered on 20 February 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.202.211.1 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by mx.simply.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 |
|---|---|---|---|---|---|---|---|
| 198.202.211.1 | 300s | — | AS209242 | Cloudflare London, LLC | 198.202.211.0/24 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔶 Autoconfig | 172.67.157.205 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2620:cb:2000::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2620:cb:2000:0:0:0:0:0/48 | 🇺🇸 United States | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| google-site-verification=hdGSNmXEd7lrSxVuPG96epvqNkCKtH0Zw5To8QLA3Ec |
| v=spf1 include:spf.simply.com -all |
| Policy | Record (visblue.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.visblue.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www CNAME | cdn.webflow.com (all on webflow.com) |
| www vs bare domain | Same network visblue.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242) www.visblue.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242) |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| 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 | 2406667378 |
| Primary NS (MNAME) | alex.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 | 2019-02-20 |
| Expires | 2027-02-28 (134d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 12:31:26 | 3956ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 11:52:45 | 2044ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 06:47:42 | 1565ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 06:28:29 | 1394ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-08 12:31:58 | 1617ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 03:31:17 shown | 1222ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 12:25:29 | 1540ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 18:20:50 | 4485ms | 2 NS 1 A 1 MX | 🔓 Insecure |