2extra.dk is a .dk domain served by 4 nameservers (ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com and 1 more). It was registered on 12 December 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.151.30.171 is hosted by 20i Limited (AS48254) in United Kingdom. Mail is handled by mx.stackmail.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 185.151.30.171 | 3600s | 185-151-30-171.ptr4.stackcp.net | AS48254 | 20i Limited | 185.151.28.0/22 | 🇬🇧 United Kingdom | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.stackmail.com | 185.151.28.67 | mx.stackmail.com | AS48254 20i Limited |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.stackmail.com → 45.8.227.100 |
| 🔶 Autoconfig | 185.151.30.171 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a07:7800::171 | 3600s | — | AS48254 | 20i Limited | 2a07:7800:0:0:0:0:0:0/46 | 🇬🇧 United Kingdom | — |
| TXT Record |
|---|
| google-site-verification=KZJKkt0yEM1fujxWRwFbNwHVBLb40F2rjASqkcTjr0k |
| v=spf1 include:spf.stackmail.com include:servers.mcsv.net a mx -all |
| Policy | Record (2extra.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.stackmail.com include:servers.mcsv.net a mx -all |
| Policy | Record (_dmarc.2extra.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:re+typfbtgujoj@dmarc.postmarkapp.com; sp=none; aspf=r; |
| www | 185.151.30.171 2a07:7800::171 (AS48254) (address records, no CNAME) |
| www vs bare domain | Same network 2extra.dk: 185.151.30.171 2a07:7800::171 (AS48254) www.2extra.dk: 185.151.30.171 2a07:7800::171 (AS48254) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| s1 | — | 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| 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 | 1684754968 |
| Primary NS (MNAME) | ns1.stackdns.com |
| Responsible (RNAME) | hostmaster@stackdns.com |
| Refresh | 1800s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2006-12-12 |
| Expires | 2026-12-31 (75d) |
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).
| Domain | Registrar |
|---|---|
| denniskronborg.dk | CURANET A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 02:09:36 shown | 890ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 11:14:48 | 1442ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 10:16:46 | 9636ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:39:58 | 677ms | 4 NS 1 A 1 MX | 🔓 Insecure |