nsf-byg.dk is a .dk domain served by 2 nameservers (marjory.ns.cloudflare.com, marty.ns.cloudflare.com). It was registered on 23 June 2011 (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 aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 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 |
|---|---|---|---|---|---|---|---|
| 100.24.208.97 | 300s | staticip2.multiscreensite.com | AS14618 | Amazon.com, Inc. | 100.24.0.0/13 | 🇺🇸 United States | Ashburn |
| 35.172.94.1 | 300s | staticip.multiscreensite.com | AS14618 | Amazon.com, Inc. | 35.168.0.0/13 | 🇺🇸 United States | Ashburn |
| TXT Record |
|---|
| google-site-verification=giZ0GWPZWh1-SpvKC7r0pOU5AdVD8ghEcl0tm4bGB_M |
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (nsf-byg.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.nsf-byg.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; rua=mailto:postmaster@nsf-byg.dk |
| www | 104.21.62.213 172.67.139.88 2606:4700:3031::6815:3ed5 2606:4700:3037::ac43:8b58 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~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: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.nsf-byg.dk | nsf-byg.dk.acme.webpod5-cph3.one.com |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2413690008 |
| Primary NS (MNAME) | marjory.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2011-06-23 |
| Expires | 2027-06-30 (251d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 13:21:59 | 3173ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-10-11 03:50:53 | 5206ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-10-02 21:14:47 | 924ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-09-30 21:09:15 | 507ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-09-23 12:53:45 | 756ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-09-21 15:00:30 | 1791ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-09-09 16:41:59 | 1137ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-09-06 21:53:18 shown | 1964ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-08-30 18:33:30 | 3186ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-08-28 02:32:16 | 691ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-08-13 11:16:01 | 5085ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-08-07 08:56:50 | 2825ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-07-10 17:40:19 | 10661ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-06-24 22:32:52 | 977ms | 2 NS 2 A 5 MX | 🔒 Secure |
| 2026-06-21 21:30:08 | 985ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 12:16:23 | 3340ms | 2 NS 2 A 5 MX | 🔒 Secure |