tuba.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 September 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.202.211.1 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by tuba-dk.e-v1.mx.microsoft. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 198.202.211.1 | 600s | — | AS209242 | Cloudflare London, LLC | 198.202.211.0/24 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=L6XZAX0WKT-13yPVv28wtUytP1Nb-xi_JfK4lIKc55c |
| google-site-verification=RalyDeTM7oP0KIFOIZnLhONujA4VdLy_vNENEFZ06yI |
| MS=ms95814845 |
| v=spf1 include:spf.protection.outlook.com include:spf.solutio.dk include:servers.mcsv.net include:spf.comendosystems.com include:dedicated.mysmtp.com ip4:212.237.249.36 ~all |
| Policy | Record (tuba.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com include:spf.solutio.dk include:servers.mcsv.net include:spf.comendosystems.com include:dedicated.mysmtp.com ip4:212.237.249.36 ~all |
| Policy | Record (_dmarc.tuba.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; |
| www CNAME | cdn.webflow.com (all on webflow.com) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 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: 10/10 · policy: ~all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.tuba-dk.e-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | C1AD7778796D20BCA65C889A26550211… |
| SMTP _25._tcp.tuba-dk.e-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 54883CC5F1849331E6BF5002C3129D20… |
| SMTP _25._tcp.tuba-dk.e-v1.mx.microsoft | DANE-TA · Full cert · SHA-256 | EA7A25255D111FC3CE4CB8FABE3ADF9C… |
| SMTP _25._tcp.tuba-dk.e-v1.mx.microsoft | DANE-EE · SPKI · SHA-256 | 803F7447CC75B208DBCA042346F5D8DF… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026032401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1998-09-09 |
| Expires | 2027-09-30 (344d) |
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 |
|---|---|---|---|
| 2026-10-13 22:33:14 | 1797ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-08 14:35:22 | 1905ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 10:45:11 | 2298ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-21 09:53:31 | 1913ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 00:14:38 shown | 1725ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-05 16:05:25 | 2133ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-04 09:28:35 | 6472ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 15:36:15 | 3786ms | 2 NS 1 A 1 MX | 🔒 Secure |