fermi.dk is a .dk domain served by 2 nameservers (jamie.ns.cloudflare.com, west.ns.cloudflare.com). It was registered on 22 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.173 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 93.191.156.173 | 300s | linux284.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 93.191.156.173 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (fermi.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.fermi.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | 93.191.156.173 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.fermi.dk | DWZxNhWVLZMf9KY2a8iGbQBp-6VE-0f3qdOPPk4By2I |
| TXT | _acme-challenge.fermi.dk | _nDvkuFZWlOgLG94ATdz51h1Z2B4rqul5yg33dBCGk4 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| 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 | 2415420068 |
| Primary NS (MNAME) | jamie.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2009-03-22 |
| Expires | 2027-03-31 (163d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 10:32:31 | 424ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 03:51:56 | 2091ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 01:47:06 | 801ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 01:40:24 | 726ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 05:19:45 | 617ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-28 04:55:33 | 673ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 02:15:51 | 681ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-22 16:57:34 shown | 1000ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 15:37:24 | 691ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 07:14:29 | 1620ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 09:18:20 | 1334ms | 3 NS 1 A 1 MX | 🔒 Secure |