boldbillet.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.80 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| ns4.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 94.231.103.80 | — | linux75.unoeuro.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| google-site-verification=UABzM62qYH4QUaHmxst4UTJv5rlNR0Bq1CljaLKA5DE |
| klaviyo-site-verification=V6QCuy |
| v=spf1 include:spf.mandrillapp.com include:servers.mcsv.net ?all |
| Policy | Record (boldbillet.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.mandrillapp.com include:servers.mcsv.net ?all |
| Policy | Record (_dmarc.boldbillet.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email |
| www | 94.231.103.80 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| s1 | s1.domainkey.u25107904.wl155.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u25107904.wl155.sendgrid.net | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 2/10 · policy: ?all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2024013100 |
| 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 |
|---|---|---|---|
| 2026-10-12 17:30:56 | 457ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-10-01 05:57:16 | 882ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-09-10 04:28:33 | 581ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-08-27 07:04:02 | 1602ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-24 04:39:39 | 762ms | 4 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-16 15:32:12 shown | 6034ms | 4 NS 1 A 5 MX | 🔒 Secure |