abtennis.dk is a .dk domain served by 2 nameservers (dana.ns.cloudflare.com, john.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.236 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx10.mcb.dk, mx20.mcb.dk and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.55.236 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.174.112 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx10.mcb.dk | 178.23.177.69 2a00:1cf0:0:9::69 |
mail.mcb.dk mail.mcb.dk |
AS47527 DLX A/S AS47527 DLX A/S |
| 20 | 300s | mx20.mcb.dk | 195.182.36.36 2a00:1cf0:0:4::4 |
mx20.lynero.net mx20.lynero.net |
AS47527 DLX A/S AS47527 DLX A/S |
| 30 | 300s | mx30.mcb.dk | 185.208.212.120 2a00:1b19:2:1::120 |
mx30.lynero.net mx30.lynero.net |
AS47527 DLX A/S AS47527 DLX A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:ae70 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:37ec | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.55.236,172.67.174.112 ech=AEX+DQBBUQAgACD446XKJHUQv7GtBD/n2zJ9KlaVE4jNnjpfFCX9w7/GRgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:ae70,2606:4700:3037::6815:37ec |
| TXT Record |
|---|
| v=spf1 include:spf.mcb.dk -all |
| Policy | Record (abtennis.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.mcb.dk -all |
| www | 104.21.55.236 172.67.174.112 2606:4700:3033::ac43:ae70 2606:4700:3037::6815:37ec (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network abtennis.dk: 104.21.55.236 172.67.174.112 2606:4700:3033::ac43:ae70 2606:4700:3037::6815:37ec (AS13335) www.abtennis.dk: 104.21.55.236 172.67.174.112 2606:4700:3033::ac43:ae70 2606:4700:3037::6815:37ec (AS13335) |
| Wildcard | No |
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 | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2413629938 |
| Primary NS (MNAME) | dana.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 14:49:55 shown | 2138ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-26 17:21:23 | 3031ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-07 11:30:23 | 3069ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-02 02:18:35 | 685ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-29 21:26:04 | 794ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-26 11:46:09 | 1824ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-30 01:02:41 | 1314ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-26 01:58:03 | 1388ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 09:40:21 | 1001ms | 2 NS 2 A 3 MX | ❓ Unknown |
| 2026-06-20 01:06:50 | 567ms | 2 NS 2 A 3 MX | ⚠️ Bogus |
| 2026-06-16 13:17:34 | 673ms | 2 NS 2 A 3 MX | 🔓 Insecure |