skan-data.dk is a .dk domain served by 2 nameservers (blair.ns.cloudflare.com, frank.ns.cloudflare.com). It was registered on 27 August 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.53.40 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by addvision-dk.mx1-dk.mailanyone.net, addvision-dk.mx2-dk.mailanyone.net and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.53.40 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.208.188 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | 185.21.41.111 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:3528 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:d0bc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.53.40,172.67.208.188 ech=AEX+DQBB/gAgACAqx4FNewUMPf5X2CdmQE8Y5/eR6BJmz3Dukn2AOyoyGwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:3528,2606:4700:3035::ac43:d0bc |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms70453277 |
| MS=ms94232155 |
| p45RwV6GPi5KJh1Lp9eYXw4GRAbcs3h2JtYNwQ7wIDovOneZirnw//tngNjnWINGWix4VSR/BMpqtkj5vLeHkg== |
| v=spf1 a:eu.mailers.system-monitor.com include:spf.protection.outlook.com include:autotask.net include:servers.mcsv.net include:spf.curanet.dk include:spf.mailanyone.net include:spf.eu.signature365.net -all |
| vpe=5e69d1be |
| Policy | Record (skan-data.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:eu.mailers.system-monitor.com include:spf.protection.outlook.com include:autotask.net include:servers.mcsv.net include:spf.curanet.dk include:spf.mailanyone.net include:spf.eu.signature365.net -all |
| Policy | Record (_dmarc.skan-data.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=none; rua=mailto:alerts@skan-data.dk; rf=afrf; pct=100; ri=86400 |
| www | 188.114.96.1 188.114.97.1 2606:4700:3034::6815:3528 2606:4700:3035::ac43:d0bc (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network skan-data.dk: 104.21.53.40 172.67.208.188 2606:4700:3034::6815:3528 2606:4700:3035::ac43:d0bc (AS13335) www.skan-data.dk: 188.114.96.1 188.114.97.1 2606:4700:3034::6815:3528 2606:4700:3035::ac43:d0bc (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 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: 9/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.skan-data.dk | 0R62VyFWnfQIAjNgoZXekyp2O0JKVQj_v6nRokMHQm4 |
| TXT | _acme-challenge.skan-data.dk | 6Z7j_fII6q4SQRzmrtXEl9o7-28NgVjw8i-x2ufb0PE |
| 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 | 2412628650 |
| Primary NS (MNAME) | blair.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ASCIO TECHNOLOGIES, CORP. DANMARK - FILIAL AF ASCIO TECHNOLOGIES, CORP. CANADA |
| Registered | 1997-08-27 |
| Expires | 2027-09-30 (341d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 19:04:38 | 928ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-07 11:22:38 | 2787ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-02 06:19:21 | 1436ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-01 06:16:07 | 2211ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-24 03:41:10 | 1045ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-23 16:37:53 | 1002ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-18 23:28:08 | 2280ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-04 20:02:51 | 1643ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-26 22:42:09 | 1462ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-20 13:36:37 shown | 9706ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-19 09:05:48 | 1474ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-18 09:01:46 | 4768ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-10 12:25:26 | 7100ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-29 19:48:14 | 2489ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-19 12:09:54 | 1989ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 22:22:28 | 1028ms | 2 NS 2 A 3 MX | 🔓 Insecure |