sterke.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 June 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 141.193.213.20 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by sterke-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 141.193.213.20 | 600s | — | AS209242 | Cloudflare London, LLC | 141.193.213.0/24 | 🇺🇸 United States | — |
| 141.193.213.21 | 600s | — | AS209242 | Cloudflare London, LLC | 141.193.213.0/24 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _dkirizh6efuw2w91i7rcto6p14sq7jc |
| google-site-verification=YQBohCAo4bW0o_l8HLIXwNi9fOaqgXcxWQGx-2VmKr4 |
| mandrill_verify.VwWq5pa3RAMK7xQh6Sr17w |
| MS=ms96076676 |
| v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all |
| Policy | Record (sterke.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all |
| Policy | Record (_dmarc.sterke.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 141.193.213.20 141.193.213.21 (AS209242) (address records, no CNAME) |
| www vs bare domain | Same network sterke.dk: 141.193.213.20 141.193.213.21 (AS209242) www.sterke.dk: 141.193.213.20 141.193.213.21 (AS209242) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061702 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2022-06-28 |
| Expires | 2027-06-27 (246d) |
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).
| Domain | Registrar |
|---|---|
| fuglsang-as.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 07:00:07 | 807ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-21 00:38:25 | 1102ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-23 20:49:20 | 914ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-18 09:43:29 | 1177ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 07:13:52 | 1282ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-13 04:44:05 shown | 8457ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-25 07:03:23 | 964ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-24 05:12:10 | 1030ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 04:53:01 | 1174ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 21:41:59 | 1239ms | 2 NS 2 A 1 MX | 🔒 Secure |