nsbv.dk is a .dk domain served by 2 nameservers (ns1.rudersdal.dk, ns2.rudersdal.dk). It was registered on 24 October 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.98 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by nsbv-dk.mx1.comendosystems.com, nsbv-dk.mx2.comendosystems.net. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.rudersdal.dk | 185.85.44.55 | — | AS200538 Rudersdal Kommune |
| ns2.rudersdal.dk | 185.85.44.57 | — | AS200538 Rudersdal Kommune |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.41.98 | 300s | linux26.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | nsbv-dk.mx1.comendosystems.com | 192.162.219.255 2a01:77c0:1619:4102:a81b:80d0:e56c:edc0 |
mx41.electric.net gw2-1535.security.comendo.com |
AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. |
| 20 | 300s | nsbv-dk.mx2.comendosystems.net | 192.162.219.155 | mx41.electric.net | AS16509 Amazon.com, Inc. |
| TXT Record |
|---|
| adobe-idp-site-verification=9467c836b644e3bcdc8eab105e7c74c8a40d3b807615c2bbda7d70f03bbfd5e6 |
| MS=A2A10E605F463063DE9869B64752B93026A1E0F3 |
| v=spf1 include:spf0.nsbv.dk -all |
| Policy | Record (nsbv.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf0.nsbv.dk -all |
| Policy | Record (_dmarc.nsbv.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc_reports@rudersdal.dk; ruf=mailto:dmarc_failure@rudersdal.dk; fo=1 |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:dns-admin@rudersdal.dk |
| 0 | issue | letsencrypt.org |
| 0 | issue | sectigo.com |
| 0 | issuewild | ; |
| www CNAME | nsbv.dk (all on nsbv.dk) → 185.21.41.98 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u5473285.wl036.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u5473285.wl036.sendgrid.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: 6/10 · policy: -all
No problems found| 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 | 132 |
| Primary NS (MNAME) | ns1.rudersdal.dk |
| Responsible (RNAME) | hostmaster@rudersdal.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2011-10-24 |
| Expires | 2027-10-31 (379d) |
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 13:33:50 | 913ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-22 03:54:04 shown | 12356ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 15:03:37 | 934ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-11 01:52:52 | 3259ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-26 05:56:29 | 1497ms | 2 NS 1 A 2 MX | ❓ Unknown |
| 2026-06-26 03:15:13 | 1055ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-23 01:49:58 | 724ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 10:53:45 | 624ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 00:00:37 | 5003ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-18 05:06:31 | 885ms | 2 NS 1 A 2 MX | 🔓 Insecure |