strand27.dk is a .dk domain served by 2 nameservers (autumn.ns.cloudflare.com, wilson.ns.cloudflare.com). It was registered on 6 May 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.75.81 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.75.81 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.217.146 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 300s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 300s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.75.81 |
| 🔶 Autoconfig | 104.21.75.81 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:d992 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::6815:4b51 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.75.81,172.67.217.146 ech=AEX+DQBBegAgACCdLTIGe5JtU59U83h0f1ljRHii6vn+TSRUr+Po4AO8dAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d992,2606:4700:3034::6815:4b51 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| spf2.0/pra |
| v=spf1 mx include:spf.gigahost.dk -all |
| Policy | Record (strand27.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:spf.gigahost.dk -all |
| www | 104.21.75.81 172.67.217.146 2606:4700:3032::ac43:d992 2606:4700:3034::6815:4b51 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network strand27.dk: 188.114.96.1 188.114.97.1 2606:4700:3032::ac43:d992 2606:4700:3034::6815:4b51 (AS13335) www.strand27.dk: 104.21.75.81 172.67.217.146 2606:4700:3032::ac43:d992 2606:4700:3034::6815:4b51 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.strand27.dk | 67AgnHKNw7AwCq-O2h153dqg5vDR1gdsJkBoBhTrzQY |
| TXT | _acme-challenge.strand27.dk | c0f-GzLBIIEpUVHgbk1yqCy_hq9wyJ2_atuiGhEDlBk |
| 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 | 2415061172 |
| Primary NS (MNAME) | autumn.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | GIGAHOST ApS |
| Registered | 2002-05-06 |
| Expires | 2027-06-30 (252d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 00:23:50 | 498ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-23 21:56:15 | 3105ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-22 12:17:11 | 814ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-17 17:50:11 shown | 2750ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-08 21:56:41 | 16935ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-21 12:22:51 | 855ms | 2 NS 2 A 3 MX | ❓ Unknown |
| 2026-06-18 06:09:23 | 891ms | 2 NS 2 A 3 MX | 🔓 Insecure |