tkbf.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 19 February 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx1.spacemail.com, mx2.spacemail.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 |
|---|---|---|---|---|---|---|---|
| 76.76.21.21 | 3600s | — | AS16509 | Amazon.com, Inc. | 76.76.21.0/24 | 🇺🇸 United States | Walnut |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | mx1.spacemail.com | 162.255.118.30 | mx1.spacemail.com | AS22612 Namecheap, Inc. |
| 0 | 3600s | mx2.spacemail.com | 162.255.118.31 | mx2.spacemail.com | AS22612 Namecheap, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 91.98.144.109 |
| 🔶 Autoconfig | 91.98.144.109 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | autoconfig.spacemail.com |
| TXT Record |
|---|
| 7d79d95a-577c-4b8c-80a0-4da51f1b9296 |
| brevo-code:fd4a37db56f2e5abbce34f1e5acd509b |
| v=spf1 include:spf.spacemail.com ~all |
| Policy | Record (tkbf.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.spacemail.com ~all |
| Policy | Record (_dmarc.tkbf.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com |
| www | 91.98.144.109 (AS24940) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| 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: 2/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| 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 | 2023-02-19 |
| Expires | 2027-02-18 (121d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| bakerpoints.dk | Simply.com A/S |
| byteskar.dk | Simply.com A/S |
| healthify.dk | Simply.com A/S |
| nabomad.dk | Simply.com A/S |
| ynordic.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 01:23:59 shown | 902ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-02 11:02:33 | 2006ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 18:09:21 | 888ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 22:24:05 | 883ms | 3 NS 1 A 2 MX | 🔒 Secure |