sikkermail.dk is a .dk domain served by 4 nameservers (ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and 1 more). It was registered on 14 September 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 65.20.113.95 is hosted by The Constant Company, LLC (AS20473) in Sweden. Mail is handled by sikkermail-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 65.20.113.95 | 3600s | 65.20.113.95.vultrusercontent.com | AS20473 | The Constant Company, LLC | 65.20.64.0/18 | 🇸🇪 Sweden | Spånga |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sip.sikkermail.dk |
| TXT Record |
|---|
| google-site-verification=5ccnmSq1Dc_HnrQVVFgr2t2MjDbGyRUC192lLN-rSO4 |
| knowbe4-site-verification=f8a0eecde40ecb172ead956570d9179c |
| MS=ms70815337 |
| v=spf1 ip4:80.160.91.224/27 include:spf.protection.outlook.com include:2834735.spf06.hubspotemail.net include:servers.mcsv.net include:_spf.salesforce.com include:email.freshdesk.com -all |
| Policy | Record (sikkermail.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:80.160.91.224/27 include:spf.protection.outlook.com include:2834735.spf06.hubspotemail.net include:servers.mcsv.net include:_spf.salesforce.com include:email.freshdesk.com -all |
| Policy | Record (_dmarc.sikkermail.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc@sikkermail.dk; ruf=mailto:dmarc@sikkermail.dk; sp=reject; ri=84600; |
| www CNAME | sikkermail.dk (all on sikkermail.dk) → 65.20.113.95 (AS20473) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-sikkermail-dk._domainkey.logivaas907.onmicrosoft.com | 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: 12/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.sikkermail.dk | sikkermail.dk.10c472e335863488.dcv.cloudflare.com |
| 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 | 2 |
| Primary NS (MNAME) | ns-cloud-d1.googledomains.com |
| Responsible (RNAME) | cloud-dns-hostmaster@google.com |
| Refresh | 21600s |
| Retry | 3600s |
| Expire | 259200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2012-09-14 |
| Expires | 2027-09-30 (342d) |
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 |
|---|---|---|---|
| 2026-09-26 10:40:55 | 1417ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-18 20:36:42 | 3353ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 11:39:15 | 4987ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-29 17:22:25 shown | 1777ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-28 05:16:42 | 3161ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 05:27:44 | 4454ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:52:33 | 1146ms | 4 NS 1 A 1 MX | 🔓 Insecure |