grbiler.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.221.253.122 is hosted by Unit IT Services ApS (AS42876) in Denmark. Mail is handled by mx.spamfilter.io. 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 |
|---|---|---|---|---|---|---|---|
| 77.221.253.122 | 3600s | — | AS42876 | Unit IT Services ApS | 77.221.224.0/19 | 🇩🇰 Denmark | Beder |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.webexchange.nu → 46.36.209.50 |
| TXT Record |
|---|
| v=spf1 ip4:138.201.32.130 ip4:89.188.72.211 ip4:95.138.217.97 ip4:172.21.169.160 ip4:172.21.169.51 ip4:5.9.241.52 ip4:138.201.32.130 ip4:148.251.176.153 include:amazonses.com include:_netblocks.keyloop.io include:spf.protection.outlook.com include:_spf.smtp.com include:_netblocks.zitcom.dk include:_netblocks2.zitcom.dk include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com -all |
| Policy | Record (grbiler.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:138.201.32.130 ip4:89.188.72.211 ip4:95.138.217.97 ip4:172.21.169.160 ip4:172.21.169.51 ip4:5.9.241.52 ip4:138.201.32.130 ip4:148.251.176.153 include:amazonses.com include:_netblocks.keyloop.io include:spf.protection.outlook.com include:_spf.smtp.com include:_netblocks.zitcom.dk include:_netblocks2.zitcom.dk include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com -all |
| Policy | Record (_dmarc.grbiler.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; |
| www | 77.221.253.122 (AS42876) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u2003615.wl116.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u2003615.wl116.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: 9/10 · policy: -all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025032101 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 10:14:33 | 362ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 07:34:18 | 4494ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 20:06:58 | 618ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 14:47:46 | 4578ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-24 14:46:57 shown | 2406ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 09:45:49 | 661ms | 2 NS 1 A 1 MX | 🔒 Secure |