nikb.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 2995s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔶 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 ip4:138.68.72.168 ip4:212.237.105.115 -all |
| Policy | Record (nikb.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com ip4:138.68.72.168 ip4:212.237.105.115 -all |
| Policy | Record (_dmarc.nikb.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=reject;rua=mailto:dmarc@nikb.dk; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:caa@nikb.dk |
| 0 | issue | letsencrypt.org |
| www CNAME | ibnet02.nikb.dk (all on nikb.dk) |
| Wildcard | No |
| 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 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 4B949F05A63FED95FC94B3A83DD70167… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026100100 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 20:30:25 shown | 1464ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-06 09:35:56 | 464ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-27 13:40:11 | 1292ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-25 19:20:03 | 893ms | 4 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 13:14:56 | 1961ms | 4 NS 0 A 1 MX | 🔒 Secure |