zweigrosse.dk is a .dk domain served by 3 nameservers (ns05.sac-it.dk, ns06.sac-it.dk, ns06us.sac-it.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 103.133.1.1 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by smtp.google.com. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns05.sac-it.dk | 85.235.255.134 | — | AS3308 Norlys Telco A/S |
| ns06.sac-it.dk | 128.76.60.134 | — | AS3292 TDC Holding A/S |
| ns06us.sac-it.dk | 72.29.91.87 | 72-29-91-87.static.hostdime.com | AS33182 HostDime.com, Inc. |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 103.133.1.1 | 1800s | — | AS209242 | Cloudflare London, LLC | 103.133.1.0/24 | 🇺🇸 United States | — |
| TXT Record |
|---|
| facebook-domain-verification=fpori2e0j9wpax8er2wih8e9uf21h0 |
| google-site-verification=h_nnLa-6EZpmH8F2bMg5NPbqbMETF2T8zSEUMCk9_4s |
| google-site-verification=tovlKS_I0Gn6ruNcAzd0jqLGvK85_LZ4BLtBD6htns0 |
| MS=ms39989019 |
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (zweigrosse.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.zweigrosse.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc.reports@rekomgroup.com; pct=100; fo=1 |
| www | 104.21.39.198 172.67.171.87 2606:4700:3030::ac43:ab57 2606:4700:3036::6815:27c6 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network zweigrosse.dk: 104.21.39.198 172.67.171.87 2606:4700:3030::ac43:ab57 2606:4700:3036::6815:27c6 (AS13335) www.zweigrosse.dk: 104.21.39.198 172.67.171.87 2606:4700:3030::ac43:ab57 2606:4700:3036::6815:27c6 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~2048 bit | |
| s1 | s1.domainkey.u18802451.wl202.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u18802451.wl202.sendgrid.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: 1/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026092207 |
| Primary NS (MNAME) | ns05.sac-it.dk |
| Responsible (RNAME) | hostmaster@zweigrosse.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 21:10:01 | 1898ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 21:05:15 | 544ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 01:35:54 | 894ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 04:39:13 | 1205ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-22 22:42:52 shown | 1846ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 05:05:38 | 1491ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-28 16:39:14 | 2181ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 02:38:29 | 4260ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 10:08:45 | 919ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 01:33:12 | 2813ms | 3 NS 1 A 1 MX | 🔓 Insecure |