ringstedgade26.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 57.129.53.233 is hosted by OVH SAS (AS16276) in Germany. Mail is handled by mail.flexmail.dk. 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 |
|---|---|---|---|---|---|---|---|
| 57.129.53.233 | 600s | flex30.flexnet.dk | AS16276 | OVH SAS | 57.128.0.0/15 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mail.flexmail.dk | 57.129.53.233 | flex30.flexnet.dk | AS16276 OVH SAS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | flex30.flexnet.dk → 57.129.53.233 |
| 🔶 Autoconfig | flex30.flexnet.dk → 57.129.53.233 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | autoconfig.flexmail.dk |
| _imaps._tcp | 0 | 0 | 993 | mail.flexmail.dk |
| TXT Record |
|---|
| v=spf1 a mx include:spf.smtp2go.net include:eu.mailgun.org ~all |
| Policy | Record (ringstedgade26.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.smtp2go.net include:eu.mailgun.org ~all |
| Policy | Record (_dmarc.ringstedgade26.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=dmarc-reports@flexnet.dk |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 5/10 · policy: ~all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.flexmail.dk | DANE-EE · SPKI · SHA-256 | 5659BBC8C3F5DB85C0D76E135EB0A094… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026020521 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-11 19:31:41 | 9576ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-08 14:44:26 | 9175ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-06 22:19:38 shown | 2010ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 20:21:44 | 673ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 21:42:05 | 685ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 12:28:43 | 2882ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 20:17:49 | 919ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:02:52 | 1806ms | 3 NS 1 A 1 MX | 🔓 Insecure |