ntrv.dk is a .dk domain served by 2 nameservers (rick.ns.cloudflare.com, roxy.ns.cloudflare.com). It was registered on 23 March 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.136.93.170 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by route3.mx.cloudflare.net, route2.mx.cloudflare.net and 1 more. 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 |
|---|---|---|---|---|---|---|---|
| 213.136.93.170 | 86400s | m14060.contabo.net | AS51167 | Contabo GmbH | 213.136.64.0/19 | 🇫🇷 France | Lauterbourg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 213.136.93.170 |
| 🔶 Autoconfig | 213.136.93.170 |
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net include:mail-relay.contabo.net include:_spf1.ntrv.dk ~all exp=_spffail.ntrv.dk |
| Policy | Record (ntrv.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net include:mail-relay.contabo.net include:_spf1.ntrv.dk ~all exp=_spffail.ntrv.dk |
| Policy | Record (_dmarc.ntrv.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:0f88ee416ab940ea98d9697c62161c44@dmarc-reports.cloudflare.net |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:security@ntrv.dk |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 213.136.93.170 (AS51167) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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: 4/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2412652004 |
| Primary NS (MNAME) | rick.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2020-03-23 |
| Expires | 2036-03-31 (3452d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 13:13:51 | 895ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-30 11:02:26 | 974ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-27 13:45:00 | 1265ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-26 13:35:33 | 1827ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-15 00:07:18 | 1493ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-14 04:37:52 | 1794ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 09:49:18 shown | 1215ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-20 02:50:34 | 13647ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-30 15:49:26 | 1940ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-27 00:22:48 | 2284ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-15 14:50:13 | 1636ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-03 19:07:55 | 1656ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-20 10:09:48 | 3877ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-18 00:23:14 | 1327ms | 2 NS 1 A 3 MX | 🔒 Secure |