substantia.dk is a .dk domain served by 2 nameservers (guy.ns.cloudflare.com, melina.ns.cloudflare.com). It was registered on 16 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.66.159 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by substantia-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.66.159 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.205.108 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| 🔶 Autoconfig | 20.81.184.48 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3036::6815:429f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:cd6c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.66.159,172.67.205.108 ech=AEX+DQBBfgAgACAPSophzkoQIze83OMxaAHB4ZXxq7MkML5iwpwjUpQiIwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:429f,2606:4700:3036::ac43:cd6c |
| TXT Record |
|---|
| google-site-verification=lyiIG9vRmgi8MSaOuDK5zA_iQ1ox70T53fR_ptCTPxQ |
| mandrill_verify.rMTbANYxdN2Jv89OmiT5NQ |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (substantia.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.substantia.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:ad04isvf@ag.eu.dmarcian.com; |
| www | 104.21.66.159 172.67.205.108 2606:4700:3036::6815:429f 2606:4700:3036::ac43:cd6c (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network substantia.dk: 104.21.66.159 172.67.205.108 2606:4700:3036::6815:429f 2606:4700:3036::ac43:cd6c (AS13335) www.substantia.dk: 104.21.66.159 172.67.205.108 2606:4700:3036::6815:429f 2606:4700:3036::ac43:cd6c (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-substantia-dk._domainkey.oxymoroncom.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: 1/10 · policy: -all
No problems found| 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 | 2413975551 |
| Primary NS (MNAME) | guy.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2023-05-16 |
| Expires | 2027-05-15 (209d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 18:53:02 shown | 944ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 21:07:59 | 1539ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 14:37:44 | 3290ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-05 13:33:06 | 1936ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 01:00:25 | 1593ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 02:57:50 | 2931ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-15 14:53:30 | 1318ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-05 18:23:54 | 34545ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 08:00:52 | 1229ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 12:18:22 | 1878ms | 2 NS 2 A 1 MX | 🔓 Insecure |