fgu-ns.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 April 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.136 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx01.sitnet.dk, mx02.sitnet.dk and 6 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.136 | 3600s | webcluster1.webpod14-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx01.sitnet.dk | 194.182.109.217 | mx01.statens-it.dk | AS58282 Statens IT |
| 10 | 3600s | mx02.sitnet.dk | 194.182.109.218 | mx02.statens-it.dk | AS58282 Statens IT |
| 10 | 3600s | mx03.sitnet.dk | 194.182.109.219 | mx03.statens-it.dk | AS58282 Statens IT |
| 10 | 3600s | mx04.sitnet.dk | 194.182.109.220 | mx04.statens-it.dk | AS58282 Statens IT |
| 10 | 3600s | mx05.sitnet.dk | 194.182.109.221 | mx05.statens-it.dk | AS58282 Statens IT |
| 10 | 3600s | mx06.sitnet.dk | 194.182.109.222 | mx06.statens-it.dk | AS58282 Statens IT |
| 10 | 3600s | mx07.sitnet.dk | 194.182.109.223 | mx07.statens-it.dk | AS58282 Statens IT |
| 10 | 3600s | mx08.sitnet.dk | 194.182.109.224 | mx08.statens-it.dk | AS58282 Statens IT |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.205.104 |
| 🔶 Autoconfig | 46.30.213.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10c:40:ae7d:d0be:55e8 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| sendinblue-code:611d7fbaac144b153bf58ac5bc740a93 |
| v=spf1 ip4:92.43.124.144 ip4:185.163.189.63 include:_spf.sitnet.dk include:o._spf.hostedsepo.dk include:spf.protection.outlook.com include:spf.sendinblue.com include:_custspf.one.com -all |
| Policy | Record (fgu-ns.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:92.43.124.144 ip4:185.163.189.63 include:_spf.sitnet.dk include:o._spf.hostedsepo.dk include:spf.protection.outlook.com include:spf.sendinblue.com include:_custspf.one.com -all |
| www | 46.30.213.133 2a02:2350:5:10c:28:be5c:15ac:a400 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network fgu-ns.dk: 46.30.213.133 2a02:2350:5:10c:28:be5c:15ac:a400 (AS51468) www.fgu-ns.dk: 46.30.213.133 2a02:2350:5:10c:28:be5c:15ac:a400 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx01.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx01.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx02.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx02.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx03.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx03.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx04.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx04.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx05.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx05.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx06.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx06.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx07.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx07.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx08.sitnet.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx08.sitnet.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061401 |
| 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 | 2019-04-02 |
| Expires | 2027-04-30 (195d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 21:17:40 | 862ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-09-30 00:37:59 | 992ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-09-12 01:46:25 | 1917ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-08-28 07:18:30 | 2666ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-08-22 22:02:50 | 8010ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-08-09 16:15:49 | 1897ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-07-09 04:34:22 | 1735ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-07-03 19:16:59 | 1600ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-27 11:52:02 | 1193ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-20 04:07:35 shown | 1091ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-17 10:18:32 | 14687ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-17 10:15:38 | 5633ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-17 10:13:05 | 1832ms | 2 NS 1 A 8 MX | 🔒 Secure |