grons.dk is a .dk domain served by 2 nameservers (perla.ns.cloudflare.com, uriah.ns.cloudflare.com). It was registered on 16 March 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.93.134 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by grons-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.93.134 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.210.48 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:d230 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:5d86 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.93.134,172.67.210.48 ech=AEX+DQBBvAAgACBna+jyTvlpYDGQRQiZZDdqjboRr6Bm4yRSsQU9L3txBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:d230,2606:4700:3035::6815:5d86 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms69487092 |
| v=spf1 ip4:92.43.124.146 ip4:92.43.124.218 ip4:92.43.124.143 ip4:92.43.124.79 ip4:159.8.140.136 ip4:37.58.122.169 ip4:80.243.123.26 include:spf.protection.outlook.com include:o._spf.hostedsepo.dk -all |
| Policy | Record (grons.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:92.43.124.146 ip4:92.43.124.218 ip4:92.43.124.143 ip4:92.43.124.79 ip4:159.8.140.136 ip4:37.58.122.169 ip4:80.243.123.26 include:spf.protection.outlook.com include:o._spf.hostedsepo.dk -all |
| www | 104.21.93.134 172.67.210.48 2606:4700:3034::ac43:d230 2606:4700:3035::6815:5d86 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2417809199 |
| Primary NS (MNAME) | perla.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 | 2004-03-16 |
| Expires | 2027-03-31 (161d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 15:00:30 shown | 1376ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-04 22:09:48 | 1969ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 20:32:34 | 1201ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-20 07:52:24 | 1028ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-21 05:19:57 | 8379ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-06 21:07:02 | 2154ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 14:00:53 | 1862ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 17:29:43 | 1130ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 17:16:30 | 1612ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 15:54:56 | 1682ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 09:23:52 | 883ms | 2 NS 2 A 1 MX | 🔓 Insecure |