lomborg-efterskole.dk is a .dk domain served by 2 nameservers (nora.ns.cloudflare.com, paul.ns.cloudflare.com). It was registered on 21 November 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.14.220 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by lomborgefterskole-dk01i.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.14.220 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.160.157 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:edc | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:a09d | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.14.220,172.67.160.157 ech=AEX+DQBBNAAgACDAjIMLMdyoyKrz46qSONFPzN+RU0NXjPG5OscOQ8iLfgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:edc,2606:4700:3037::ac43:a09d |
| TXT Record |
|---|
| google-site-verification=g0YNjbdMpe_49pNdjKnuzjVhCplbcXTxOkCoIQ_QRRI |
| MS=ms66536524 |
| v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com include:spf.mailjet.com ip4:83.136.91.38 -all |
| Policy | Record (lomborg-efterskole.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mandrillapp.com include:spf.mailjet.com ip4:83.136.91.38 -all |
| Policy | Record (_dmarc.lomborg-efterskole.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc-feedback@educant.dk; aspf=r |
| 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 | rapidssl.com |
| 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 | 104.21.14.220 172.67.160.157 2606:4700:3034::6815:edc 2606:4700:3036::ac43:a09d (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network lomborg-efterskole.dk: 104.21.14.220 172.67.160.157 2606:4700:3034::6815:edc 2606:4700:3036::ac43:a09d (AS13335) www.lomborg-efterskole.dk: 104.21.14.220 172.67.160.157 2606:4700:3034::6815:edc 2606:4700:3036::ac43:a09d (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-lomborgefterskole-dk01i._domainkey.lomborgefterskole.onmicrosoft.com | RSA · ~1024 bit below 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: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'lomborg-efterskole.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2405908355 |
| Primary NS (MNAME) | nora.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 | 2004-11-21 |
| Expires | 2026-11-30 (42d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 18:33:23 | 1133ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 04:14:40 | 2931ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 02:56:53 | 10318ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-09 02:11:43 | 2594ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-03 18:58:06 | 2147ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-13 15:38:22 | 4389ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-05 17:01:34 | 2526ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:29:53 shown | 6401ms | 2 NS 2 A 1 MX | ⚠️ Bogus |