studiepraktik.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 5 October 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by studiepraktik-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns.efif.dk | 195.254.168.23 | ns.efif.dk | AS51073 Aarhus Business College |
| ns2.efif.dk | 195.254.168.12 | ns2.efif.dk | AS51073 Aarhus Business College |
| ns3.efif.dk | 20.23.170.35 | — | AS8075 Microsoft Corporation |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 20.224.200.212 | 3600s | — | AS8075 | — | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.240.104 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:111:f100:9001::1761:910d | 3600s | — | AS8075 | — | — | — | — |
| TXT Record |
|---|
| EAA |
| MS=ms90397392 |
| v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:u32006357.wl108.sendgrid.net include:_spf.illumi.dk -all |
| Policy | Record (studiepraktik.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:u32006357.wl108.sendgrid.net include:_spf.illumi.dk -all |
| Policy | Record (_dmarc.studiepraktik.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@efif.dk; rua=mailto:64e88d13a948b@dmarc.centerasecurity.com |
| www CNAME | studiepraktik.dk (all on studiepraktik.dk) |
| www vs bare domain | Same network studiepraktik.dk: 20.224.200.212 2a01:111:f100:9001::1761:910d (AS8075) www.studiepraktik.dk: 20.224.200.212 2a01:111:f100:9001::1761:910d (AS8075) |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u32006357.wl108.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u32006357.wl108.sendgrid.net | RSA · ~2048 bit |
| selector1 | selector1-studiepraktik-dk._domainkey.efif.onmicrosoft.com | 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: 7/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2021030977 |
| Primary NS (MNAME) | ns.efif.dk |
| Responsible (RNAME) | dns-zc@efif.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2016-10-05 |
| Expires | 2026-10-31 (9d) |
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 |
|---|---|---|---|
| 2026-10-22 07:02:40 | 1484ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-17 07:59:27 | 3306ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-16 07:41:12 | 2918ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-15 06:30:42 | 1063ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-14 05:50:36 | 1256ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-11 00:13:15 | 1172ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 16:41:14 | 1326ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 16:36:19 | 4619ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-05 13:47:13 | 2806ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 13:29:31 | 1232ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 13:27:15 | 1072ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 13:21:06 | 2710ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 13:01:55 | 1121ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 12:42:32 | 2648ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 12:19:47 | 2130ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 21:08:47 | 1032ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 05:41:46 | 2008ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 23:11:53 | 3866ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 19:02:05 | 1836ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 23:41:15 | 723ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 09:07:33 | 3671ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-22 01:52:45 | 9587ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-18 22:18:15 | 9420ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-17 10:08:31 | 2865ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-16 04:15:27 | 5036ms | 3 NS 1 A 1 MX | 🔒 Secure |