explorum.dk is a .dk domain served by 4 nameservers (ns1-37.azure-dns.com, ns2-37.azure-dns.net, ns3-37.azure-dns.org and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 199.36.158.100 is hosted by Fastly, Inc. (AS54113) in United States. Mail is handled by explorum-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1-37.azure-dns.com | — | — | — |
| ns2-37.azure-dns.net | — | — | — |
| ns3-37.azure-dns.org | — | — | — |
| ns4-37.azure-dns.info | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 199.36.158.100 | — | — | AS54113 | Fastly, Inc. | 199.36.158.0/24 | 🇺🇸 United States | — |
| TXT Record |
|---|
| explorum.azurewebsites.net |
| firebase=explorum-prod-identity |
| google-site-verification=49ZOQe4KkyEkGpvfWNlDyne7SNMgchpfAHtiZb2bKjY |
| google-site-verification=z2592YTMlVazx75QMWS8_hN4Kqr9Uzhx2na9N1y4i_w |
| hosting-site=explorum-prod |
| ms-domain-verification=f7602cfa-e1c3-4304-aad8-79abf86f49ac |
| v=spf1 include:_spf.firebasemail.com ~all |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (explorum.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.firebasemail.com ~all |
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.explorum.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | explorum-prod.web.app (all on web.app) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u41039087.wl088.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u41039087.wl088.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: 4/10 · policy: ~all
| 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) | ns1-37.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-02 06:48:31 | 871ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-25 20:26:23 | 765ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 00:39:08 | 1063ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 09:09:15 shown | 3636ms | 4 NS 1 A 1 MX | 🔓 Insecure |