heidibyskov.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 December 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 100.24.208.97 is hosted by Amazon.com, Inc. (AS14618) in United States. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 100.24.208.97 | 3600s | staticip2.multiscreensite.com | AS14618 | Amazon.com, Inc. | 100.24.0.0/13 | 🇺🇸 United States | Ashburn |
| 35.172.94.1 | 3600s | staticip.multiscreensite.com | AS14618 | Amazon.com, Inc. | 35.168.0.0/13 | 🇺🇸 United States | Ashburn |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod16-cph3.g1i.one.com | 5.249.232.33 | mx1.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod16-cph3.g1i.one.com | 5.249.232.34 | mx2.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod16-cph3.g1i.one.com | 5.249.232.35 | mx3.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod16-cph3.g1i.one.com | 5.249.232.36 | mx4.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| TXT Record |
|---|
| v=spf1 include:_custspf.one.com ~all |
| Policy | Record (heidibyskov.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com ~all |
| Policy | Record (_dmarc.heidibyskov.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www CNAME | s.multiscreensite.com (all on multiscreensite.com) |
| www vs bare domain | Different networks heidibyskov.dk: 100.24.208.97 35.172.94.1 (AS14618) (all like this)www.heidibyskov.dk: 13.248.175.166 76.223.58.8 (AS16509) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092601 |
| 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 | ONE.COM A/S |
| Registered | 2025-12-15 |
| Expires | 2026-12-14 (58d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 13:35:56 shown | 2060ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-30 12:56:55 | 753ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-27 03:21:49 | 816ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-24 02:45:06 | 1026ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-09-02 17:13:19 | 2755ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-31 05:43:33 | 1528ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-28 00:56:17 | 607ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-22 09:59:10 | 3613ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 19:26:08 | 564ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 00:32:40 | 494ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 05:41:58 | 648ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:05:43 | 948ms | 2 NS 1 A 0 MX | 🔒 Secure |