notahero.dk is a .dk domain served by 2 nameservers (howard.ns.cloudflare.com, sarah.ns.cloudflare.com). It was registered on 8 June 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.77.123 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.notahero.dk. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.77.123 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.207.172 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.notahero.dk | 91.98.195.209 | mail.notahero.dk | AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.notahero.dk → 91.98.195.209 |
| 🔶 Autoconfig | mail.notahero.dk → 91.98.195.209 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:4d7b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::ac43:cfac | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.77.123,172.67.207.172 ech=AEX+DQBB6gAgACAnIb9xukKvwV/tbsrQemTqab0tSs+E4bywaQTjCsNCCQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4d7b,2606:4700:3031::ac43:cfac |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _imaps._tcp | 0 | 1 | 993 | mail.notahero.dk |
| TXT Record |
|---|
| google-site-verification=U9nZF-dcKlWEreqlXkthmeatSVEPd5rtiIKjp8DcSf4 |
| google-site-verification=vS1q2HtdduhFqlwog1YKV-ipu_KLQPWf_8DlVzvIcGk |
| v=spf1 mx -all |
| Policy | Record (notahero.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.notahero.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:mads@notahero.dk; ruf=mailto:mads@notahero.dk; rf=afrf; sp=quarantine; fo=1; pct=100; adkim=s; aspf=s |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 16088739942794535589 |
| max_age | 604800s |
| Policy MX | mail.notahero.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 104.21.77.123 172.67.207.172 2606:4700:3031::6815:4d7b 2606:4700:3031::ac43:cfac (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network notahero.dk: 104.21.77.123 172.67.207.172 2606:4700:3031::6815:4d7b 2606:4700:3031::ac43:cfac (AS13335) www.notahero.dk: 104.21.77.123 172.67.207.172 2606:4700:3031::6815:4d7b 2606:4700:3031::ac43:cfac (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.notahero.dk | WoX-WiFq5SglJW0zaEejpINNOhj-OHDtJ3Zkc8A-8w8 |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2417233782 |
| Primary NS (MNAME) | howard.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 | 2024-06-08 |
| Expires | 2027-06-07 (233d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 23:31:13 shown | 682ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 02:48:44 | 880ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 02:22:06 | 9568ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 20:43:39 | 1050ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-18 09:42:40 | 1775ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-05 15:22:27 | 2926ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 10:57:08 | 886ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 08:37:34 | 926ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-08-13 09:26:10 | 1202ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-01 13:33:12 | 9162ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-26 17:06:30 | 1337ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-24 16:27:29 | 8845ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-09 01:47:14 | 16904ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 06:45:30 | 1449ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 00:47:36 | 969ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 22:55:52 | 3066ms | 2 NS 2 A 1 MX | 🔓 Insecure |