exf.dk is a .dk domain served by 2 nameservers (deb.ns.cloudflare.com, justin.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.80.160 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.80.160 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.151.118 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::ac43:9776 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:50a0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.80.160,172.67.151.118 ech=AEX+DQBB1wAgACBO6/jrXP1aBhaf2Ru3Gu/fnISM/miZlyHnAVovwfhNIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:9776,2606:4700:3037::6815:50a0 |
| TXT Record |
|---|
| google-site-verification=wYKq_WG4rebQZJBOskyk38vAYx0aatihUt4bbH0Ucfg |
| v=spf1 include:zoho.eu include:_spf.google.com ~all |
| Policy | Record (exf.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:zoho.eu include:_spf.google.com ~all |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | letsencrypt.prg |
| 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 | NXDOMAIN |
| www vs bare domain | www does not resolve exf.dk: 104.21.80.160 172.67.151.118 2606:4700:3035::ac43:9776 2606:4700:3037::6815:50a0 (AS13335) (all like this)www.exf.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| — | 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: 3/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.exf.dk | 6bFTIIMjt5FDHMhkHnr8FOE8Zwu4tHRmsOI9-9_citA |
| TXT | _acme-challenge.exf.dk | E7ROV0mdQwZZc_8Bcqlt7VR-zbW9TymeGc35QmIGIe8 |
| 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 | 2413553661 |
| Primary NS (MNAME) | deb.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 08:56:00 | 783ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-10-08 00:26:47 | 660ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-10-04 03:12:43 | 642ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-29 22:28:26 | 1150ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-28 22:16:38 | 1152ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-23 20:47:56 | 1731ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-08 10:20:53 | 1298ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-09-05 00:34:25 | 887ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-31 13:24:25 shown | 921ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-30 03:24:24 | 3225ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-27 04:21:11 | 837ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-08-25 03:31:19 | 1352ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-07-20 08:49:51 | 3599ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-24 06:34:04 | 1488ms | 2 NS 2 A 5 MX | ❓ Unknown |
| 2026-06-21 21:25:30 | 877ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-20 06:09:42 | 968ms | 2 NS 2 A 5 MX | 🔓 Insecure |
| 2026-06-17 09:09:06 | 1937ms | 2 NS 2 A 5 MX | 🔓 Insecure |