kuldioxid.dk is a .dk domain served by 2 nameservers (udns1.cscdns.net, udns2.cscdns.uk). It was registered on 9 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 104.84.152.184 | — | a104-84-152-184.deploy.static.akamaitechnologies.com | AS20940 | — | — | — | — |
| 104.84.152.49 | — | a104-84-152-49.deploy.static.akamaitechnologies.com | AS20940 | — | — | — | — |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (kuldioxid.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.kuldioxid.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;pct=100;rua=mailto:xrdv15em@ag.eu.dmarcian.com;ruf=mailto:xrdv15em@fr.eu.dmarcian.com |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com |
| 0 | issue | letsencrypt.org |
| 0 | issue | sectigo.com |
| www CNAME | aag4.linde.com.edgekey.net (all on edgekey.net) |
| Wildcard | No |
DNS lookups: 0/10 · 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 | 2019111094 |
| Primary NS (MNAME) | udns1.cscdns.net |
| Responsible (RNAME) | premiumdns@support.neustar |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1296000s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 1998-02-09 |
| Expires | 2027-03-31 (165d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 17:51:56 | 506ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-25 20:20:24 | 651ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-26 10:34:40 | 9936ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-26 23:00:21 | 2019ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-25 09:35:32 | 2794ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-22 07:56:58 | 909ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 01:57:32 shown | 1358ms | 2 NS 2 A 0 MX | 🔓 Insecure |