schaerfe.dk is a .dk domain served by 2 nameservers (bob.ns.cloudflare.com, carol.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.152 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by schaerfe-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.15.152 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.206.87 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.206.87 |
| 🔶 Autoconfig | 172.67.206.87 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:ce57 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:f98 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.15.152,172.67.206.87 ech=AEX+DQBB7gAgACBaMSe4RApaCGOebLYuXF56dDpHbosLeQBXeM5ck7ckOgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:ce57,2606:4700:3036::6815:f98 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.unoeuro.com |
| TXT Record |
|---|
| v=spf1 ip4:94.231.109.54 ip4:78.46.139.214 include:spf.protection.outlook.com include:spf.nembedemand.dk -all |
| Policy | Record (schaerfe.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:94.231.109.54 ip4:78.46.139.214 include:spf.protection.outlook.com include:spf.nembedemand.dk -all |
| www | 104.21.15.152 172.67.206.87 2606:4700:3034::ac43:ce57 2606:4700:3036::6815:f98 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network schaerfe.dk: 104.21.15.152 172.67.206.87 2606:4700:3034::ac43:ce57 2606:4700:3036::6815:f98 (AS13335) www.schaerfe.dk: 104.21.15.152 172.67.206.87 2606:4700:3034::ac43:ce57 2606:4700:3036::6815:f98 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · 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 | 2404159199 |
| Primary NS (MNAME) | bob.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 17:26:36 | 864ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 04:42:03 | 9756ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-18 22:46:11 | 1343ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-11 19:45:52 | 980ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-19 12:31:05 | 1439ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-11 20:09:24 | 11039ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-28 16:58:07 shown | 1183ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 21:19:32 | 1340ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 16:14:20 | 903ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 03:58:52 | 1326ms | 2 NS 2 A 1 MX | 🔓 Insecure |