optisafe.dk is a .dk domain served by 2 nameservers (ernest.ns.cloudflare.com, stephane.ns.cloudflare.com). It was registered on 30 April 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.91.155 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by optisafe-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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.91.155 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.175.83 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:5b9b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:af53 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.91.155,172.67.175.83 ech=AEX+DQBBOQAgACDABaBVi5IwIh9XmVCaHCepRbewCloZrmP000PlIz/8cwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:5b9b,2606:4700:3035::ac43:af53 |
| TXT Record |
|---|
| v=spf1 a mx ip4:178.20.216.100 ip4:162.55.97.110 include:spf.chosting.dk include:spf.protection.outlook.com include:_spf.powerhosting.dk ~all |
| Policy | Record (optisafe.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx ip4:178.20.216.100 ip4:162.55.97.110 include:spf.chosting.dk include:spf.protection.outlook.com include:_spf.powerhosting.dk ~all |
| Policy | Record (_dmarc.optisafe.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 104.21.91.155 172.67.175.83 2606:4700:3033::6815:5b9b 2606:4700:3035::ac43:af53 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network optisafe.dk: 104.21.91.155 172.67.175.83 2606:4700:3033::6815:5b9b 2606:4700:3035::ac43:af53 (AS13335) www.optisafe.dk: 104.21.91.155 172.67.175.83 2606:4700:3033::6815:5b9b 2606:4700:3035::ac43:af53 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 7/10 · 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 | 2415933786 |
| Primary NS (MNAME) | ernest.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-04-30 |
| Expires | 2027-04-30 (192d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 16:07:15 | 1127ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-28 08:24:44 shown | 3154ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 08:12:43 | 2043ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 08:05:45 | 863ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-20 10:25:29 | 2006ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-13 04:10:43 | 1721ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-29 21:07:42 | 2174ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 03:43:10 | 7379ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:51:08 | 3344ms | 2 NS 2 A 1 MX | 🔓 Insecure |