gsv.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 May 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.200.179.139 is hosted by Amazon.com, Inc. (AS16509) in Ireland. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net and 2 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | autodiscover.outlook.com |
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _globalsign-domain-verification=nZwVi8ea6rTxg3N4ztoFwQptjQ4py57_qKCoYANywL |
| apple-domain-verification=Yq6B0qQ0XRQBzpKL |
| google-site-verification=-DStdmF-_Dtd3lQ87gO_lH3XrXb0MN5gTcP2baMGgSY |
| google-site-verification=sXgRD7dO4eFCXLEFvaOwa8_-x-lI18lxS5XeyFb-b34 |
| ms-domain-verification=974df531-2de6-4e2c-b5c8-bbda8d079bcf |
| v=spf1 ip4:62.243.129.131 ip4:3.67.54.56 ip4:3.65.81.9 include:spf.sosafe.de include:spf.mailanyone.net include:mailmailmail.net include:_spf.online.superoffice.com include:spf.protection.outlook.com -all |
| Policy | Record (gsv.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:62.243.129.131 ip4:3.67.54.56 ip4:3.65.81.9 include:spf.sosafe.de include:spf.mailanyone.net include:mailmailmail.net include:_spf.online.superoffice.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.gsv.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:411e93a49363311@rep.dmarcanalyzer.com,mailto:dmarc_agg@vali.email; ruf=mailto:411e93a49363311@for.dmarcanalyzer.com; |
| www CNAME | gsv.dk (all on gsv.dk) → 13.51.62.86 (AS16509) |
| 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 |
|---|---|---|
| s1 | s1.domainkey.u5997138.wl139.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u5997138.wl139.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| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx1.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx2.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx3.mailanyone.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 1AAAC405385DEB66C25E43D629569F6C… |
| SMTP _25._tcp.dk.mx4.mx25.net | DANE-EE · Full cert · SHA-256 | 443DFE296DAC92DD311766BAD0B04CC7… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081101 |
| 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 | ONE.COM A/S |
| Registered | 1997-05-27 |
| Expires | 2027-06-30 (254d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 10:42:18 | 869ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-29 01:21:41 | 1034ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-28 00:42:52 | 831ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 23:41:39 | 889ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-07 00:17:44 | 1140ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-05 16:13:09 | 1784ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 08:54:30 | 922ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-13 21:42:00 | 6022ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-11 19:03:06 shown | 2853ms | 2 NS 3 A 4 MX | 🔒 Secure |
| 2026-07-16 21:14:18 | 1747ms | 2 NS 3 A 4 MX | 🔒 Secure |
| 2026-07-02 12:29:28 | 945ms | 2 NS 3 A 4 MX | 🔒 Secure |
| 2026-06-24 02:46:20 | 949ms | 2 NS 3 A 4 MX | 🔒 Secure |
| 2026-06-23 12:07:26 | 4784ms | 2 NS 3 A 4 MX | 🔒 Secure |
| 2026-06-22 22:40:25 | 958ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 09:36:03 | 1368ms | 2 NS 3 A 4 MX | 🔒 Secure |