blueidea.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 10 June 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by blueidea-dk.mail.protection.outlook.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 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 |
|---|---|---|---|---|---|---|---|
| 93.191.156.17 | — | nt34.unoeuro.com | AS48854 | — | — | — | — |
| TXT Record |
|---|
| google-site-verification=YPG5S5c8GWf6YNSOk771nUmEyOaphZpSxSKSBjmrEB4 |
| MS=ms53210606 |
| ufeph306keir8sh4ddttd7ajfl |
| v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:sendgrid.net include:spf.curanet.dk -all |
| Policy | Record (blueidea.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:sendgrid.net include:spf.curanet.dk -all |
| Policy | Record (_dmarc.blueidea.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | 93.191.156.17 (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 |
|---|---|---|
| s1 | s1.domainkey.u8384343.wl094.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u8384343.wl094.sendgrid.net | RSA · ~1024 bit below 2048 bit |
| selector1 | selector1-blueidea-dk._domainkey.blueide.onmicrosoft.com | RSA · ~1024 bit below 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: 7/10 · 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 | 2026013000 |
| 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 | 2009-06-10 |
| Expires | 2027-06-30 (254d) |
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 |
|---|---|
| servicealert.dk | Simply.com A/S |
| sms-service.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 01:36:06 | 1090ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 00:43:45 | 796ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 04:18:08 | 2366ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 15:09:49 | 607ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 15:07:59 | 3262ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 15:01:54 shown | 1928ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 15:00:23 | 794ms | 4 NS 1 A 1 MX | 🔒 Secure |