efsundbybrygge.dk is a .dk domain served by 2 nameservers (ns1.aveo.dk, ns2.aveo.dk). It was registered on 19 March 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.186 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 185.21.41.186 | 3600s | linux21.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 3600s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.134.30.12 |
| 🔶 Autoconfig | 185.134.30.12 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 a mx include:spf.hostedin.cloud include:spf.curanet.dk ~all |
| Policy | Record (efsundbybrygge.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.hostedin.cloud include:spf.curanet.dk ~all |
| Policy | Record (_dmarc.efsundbybrygge.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none; rf=afrf; pct=100; ri=86400 |
| www CNAME | efsundbybrygge.dk (all on efsundbybrygge.dk) → 185.21.41.186 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| 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: 6/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.efsundbybrygge.dk | Vdy5k4tLt7M9dUb8mgyt-AKchCzGx7goaV5dmCaGQR8 |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'efsundbybrygge.dk/DNSKEY/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2023030301 |
| Primary NS (MNAME) | ns1.aveo.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2018-03-19 |
| Expires | 2027-03-31 (156d) |
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).
Showing 100 of 475.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 21:11:23 | 381ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-08 01:24:47 | 347ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 07:32:51 | 491ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 00:56:47 | 472ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-25 22:16:14 | 1260ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 16:04:22 | 2662ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-19 15:25:01 shown | 630ms | 2 NS 1 A 2 MX | ⚠️ Bogus |
| 2026-06-17 06:29:47 | 11077ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 06:03:16 | 1624ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 06:00:42 | 638ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 06:00:38 | 459ms | 2 NS 1 A 2 MX | 🔒 Secure |