administrationshuset.dk is a .dk domain served by 4 nameservers (ns-1508.awsdns-60.org, ns-1972.awsdns-54.co.uk, ns-258.awsdns-32.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 54.73.76.21 is hosted by Amazon.com, Inc. (AS16509) in Ireland. Mail is handled by administrationshuset-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 54.73.76.21 | 60s | ec2-54-73-76-21.eu-west-1.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 54.64.0.0/12 | 🇮🇪 Ireland | Dublin |
| 63.33.180.173 | 60s | ec2-63-33-180-173.eu-west-1.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 63.32.0.0/14 | 🇮🇪 Ireland | Dublin |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| 🔶 Autoconfig | realestate.administrationshuset.dk |
| TXT Record |
|---|
| chdjhe3rlhfju4o8fapvvgve1q |
| GqlJNhh |
| i8uhmuce58m48t1t864ecjd6mn |
| jr6s4sfu55gp1pm6fvu0fv54t4 |
| v=spf1 a:smtp.cobblestone.dk include:servers.mcsv.net include:spf.mailanyone.net include:spf.protection.outlook.com include:spf.symprex.net -all |
| x4ykfnuf4mnHv80CxtasgEP3t4OsY1g8+SbRrvAF+lgmpT9qoKXk9m5Aod0hOYv9yY11GMBW9M6Fj1yey/YdLQ== |
| Policy | Record (administrationshuset.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:smtp.cobblestone.dk include:servers.mcsv.net include:spf.mailanyone.net include:spf.protection.outlook.com include:spf.symprex.net -all |
| Policy | Record (_dmarc.administrationshuset.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:7lrymkqp@ag.eu.dmarcian.com; |
| www CNAME | administrationshuset.dk (all on administrationshuset.dk) |
| www vs bare domain | Same network administrationshuset.dk: 54.73.76.21 63.33.180.173 (AS16509) www.administrationshuset.dk: 54.73.76.21 63.33.180.173 (AS16509) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-administrationshuset-dk._domainkey.cobblestoneas.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-administrationshuset-dk._domainkey.cobblestoneas.onmicrosoft.com | 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: 5/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.administrationshuset.dk | realestate.administrationshuset.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 1 |
| Primary NS (MNAME) | ns-759.awsdns-30.net |
| Responsible (RNAME) | awsdns-hostmaster@amazon.com |
| Refresh | 7200s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 12:43:29 shown | 4167ms | 4 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 17:24:32 | 5307ms | 4 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-20 23:42:25 | 13535ms | 4 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 21:47:13 | 5863ms | 4 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 07:10:45 | 4041ms | 4 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-29 23:04:09 | 1474ms | 4 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:38:49 | 4971ms | 4 NS 2 A 1 MX | 🔓 Insecure |