rkoncept.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 6 August 2026 (WHOIS) and first appeared in the .dk zone on 7 August 2026. Its website address 104.18.26.246 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 104.18.26.246 | 3600s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| 104.18.27.246 | 3600s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.20.205.33 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (rkoncept.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.rkoncept.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www CNAME | cname.manus.space (all on manus.space) |
| www vs bare domain | Same network rkoncept.dk: 104.18.26.246 104.18.27.246 (AS13335) www.rkoncept.dk: 104.19.168.112 104.19.169.112 2606:4700::6813:a870 2606:4700::6813:a970 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
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 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 4B949F05A63FED95FC94B3A83DD70167… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101003 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2026-08-06 |
| Expires | 2027-08-05 (291d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 12:48:13 shown | 1201ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-10 10:55:56 | 1221ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-03 21:58:13 | 524ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 21:40:59 | 585ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 02:30:02 | 1529ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 02:05:18 | 2310ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 09:17:13 | 8571ms | 3 NS 0 A 0 MX | 🔒 Secure |