mercit.dk is a .dk domain served by 2 nameservers (adelaide.ns.cloudflare.com, george.ns.cloudflare.com). It was registered on 3 July 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.56.188 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.spamfilter.io. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.56.188 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.155.138 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:38bc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:9b8a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.56.188,172.67.155.138 ech=AEX+DQBBcwAgACDC+eASx2aWGFx+iBjE08odIv4g6s91arVJg4BPw07hBwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:38bc,2606:4700:3032::ac43:9b8a |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (mercit.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.mercit.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| www | 104.21.56.188 172.67.155.138 2606:4700:3030::6815:38bc 2606:4700:3032::ac43:9b8a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 0/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.mercit.dk | AfeKOlyA_28xU0WHLH3vrb2p5YUFe4HUtQ8GwKuute0 |
| TXT | _acme-challenge.mercit.dk | rvW1DhEA9mzJjT1lD8SPw-C6cBGtGKoh9vD2-Itz3GU |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2414871869 |
| Primary NS (MNAME) | adelaide.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 | 2006-07-03 |
| Expires | 2028-07-31 (650d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| 123overblik.dk | Punktum dk A/S (direct) |
| merc-it.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 13:46:49 | 749ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-26 05:28:52 | 738ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-19 18:34:45 | 1241ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-14 18:12:30 shown | 1017ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-04 00:40:46 | 678ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 01:31:00 | 762ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-10 21:03:46 | 1531ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-23 09:50:00 | 1132ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-17 10:41:07 | 1717ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-29 00:04:52 | 930ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 22:33:15 | 999ms | 2 NS 2 A 1 MX | 🔒 Secure |