pcsos.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 83.136.251.159 is hosted by UpCloud Ltd (AS202053) in United Kingdom. Mail is handled by mail.digiask.dk. 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 |
|---|---|---|---|---|---|---|---|
| 83.136.251.159 | — | brugtelamper.dk | AS202053 | UpCloud Ltd | 83.136.248.0/21 | 🇬🇧 United Kingdom | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.digiask.dk | 2a04:3542:1000:910:3016:6cff:febb:4381 | — | AS202053 UpCloud Ltd |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a04:3541:1000:500:3016:6cff:febb:48aa | — | brugtelamper.dk | AS202053 | UpCloud Ltd | 2a04:3540:0:0:0:0:0:0/30 | 🇬🇧 United Kingdom | — |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (pcsos.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.pcsos.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; |
| www | 83.136.251.159 2a04:3542:1000:910:3016:6cff:febb:558f (AS202053) (address records, no CNAME) |
| www vs bare domain | Same network pcsos.dk: 83.136.251.159 2a04:3541:1000:500:3016:6cff:febb:48aa (AS202053) www.pcsos.dk: 83.136.251.159 2a04:3542:1000:910:3016:6cff:febb:558f (AS202053) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA Invalid key data — receivers can't verify signatures |
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| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2024101809 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 21:05:52 | 3944ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 14:31:08 | 1281ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 14:09:55 | 14872ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 10:12:59 | 1189ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 08:48:17 | 897ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 21:32:15 | 748ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 20:55:32 | 1345ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 15:59:42 | 1364ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 12:03:46 shown | 8868ms | 4 NS 1 A 1 MX | 🔒 Secure |