mathready.dk is a .dk domain served by 2 nameservers (ns61.domaincontrol.com, ns62.domaincontrol.com). It was registered on 23 March 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 160.153.0.201 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by mx1-usg2.ppe-hosted.com, mx2-usg2.ppe-hosted.com and 1 more. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 160.153.0.201 | 3600s | 201.0.153.160.host.secureserver.net | AS209242 | Cloudflare London, LLC | 160.153.0.0/24 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | mx1-usg2.ppe-hosted.com | 98.85.123.215 | mx1-usg2.ppe-hosted.com | AS14618 Amazon.com, Inc. |
| 0 | 3600s | mx2-usg2.ppe-hosted.com | 23.21.114.81 | mx2-usg2.ppe-hosted.com | AS14618 Amazon.com, Inc. |
| 0 | 3600s | mx3-usg2.ppe-hosted.com | 34.231.165.252 | mx3-usg2.ppe-hosted.com | AS14618 Amazon.com, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=39RJAMWsxbpB_CbKADnOvV1eb1fupj3R2J7CUR_qXe8 |
| google-site-verification=C6K1t1Fc_NXL1BABBan0lHBIvUSRgeo5yqni1NchSYk |
| NETORG20503426.onmicrosoft.com |
| v=spf1 include:spf.em.secureserver.net include:_spf-usg2.ppe-hosted.com include:secureserver.net ~all |
| Policy | Record (mathready.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.em.secureserver.net include:_spf-usg2.ppe-hosted.com include:secureserver.net ~all |
| Policy | Record (_dmarc.mathready.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc_rua@onsecureserver.net |
| www CNAME | mathready.dk (all on mathready.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 6/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.mathready.dk | mathready.dk.a2a5947319618a50.dcv.cloudflare.com |
| 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 | 2026082702 |
| Primary NS (MNAME) | ns61.domaincontrol.com |
| Responsible (RNAME) | dns@jomax.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2024-03-23 |
| Expires | 2029-03-22 (886d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 06:59:28 shown | 736ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-23 07:51:35 | 929ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-28 16:33:56 | 1045ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-25 20:06:13 | 2713ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-21 22:22:51 | 2810ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-21 11:22:27 | 914ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 13:15:30 | 940ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-18 00:36:07 | 3141ms | 2 NS 2 A 3 MX | 🔓 Insecure |