assist2u.dk is a .dk domain served by 2 nameservers (curt.ns.cloudflare.com, georgia.ns.cloudflare.com). It was registered on 8 February 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.24.74 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by assist2u-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.24.74 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.217.198 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.217.198 |
| 🔶 Autoconfig | 104.21.24.74 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:184a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:d9c6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.24.74,172.67.217.198 ech=AEX+DQBB9gAgACCuVMzIWBN1MOubdQaeIsAx8bn5QJxBEujBmZj3mNDSJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:184a,2606:4700:3035::ac43:d9c6 |
| TXT Record |
|---|
| MS=ms50588916 |
| v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all |
| Policy | Record (assist2u.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all |
| Policy | Record (_dmarc.assist2u.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@assist2u.dk; ruf=mailto:dmarc@assist2u.dk |
| www | 104.21.24.74 172.67.217.198 2606:4700:3035::6815:184a 2606:4700:3036::ac43:d9c6 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network assist2u.dk: 104.21.24.74 172.67.217.198 2606:4700:3035::6815:184a 2606:4700:3036::ac43:d9c6 (AS13335) www.assist2u.dk: 104.21.24.74 172.67.217.198 2606:4700:3035::6815:184a 2606:4700:3036::ac43:d9c6 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-assist2u-dk._domainkey.assist2u.onmicrosoft.com | RSA · ~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: 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 | 2406884989 |
| Primary NS (MNAME) | curt.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2024-02-08 |
| Expires | 2027-02-07 (108d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 18:02:32 | 3372ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-10 17:36:27 | 1094ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 18:15:45 | 4087ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-15 03:34:59 | 2514ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-14 04:44:20 | 2256ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-12 08:22:04 | 5793ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-17 03:45:32 | 1390ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 22:22:53 shown | 6763ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 06:45:32 | 1175ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 16:22:36 | 832ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:50:21 | 2065ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:46:38 | 3219ms | 2 NS 2 A 1 MX | 🔓 Insecure |