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. Its website address 20.224.200.212 is hosted by Microsoft Corporation (AS8075) in The Netherlands. 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 | Microsoft Corporation | 20.192.0.0/10 | 🇳🇱 The Netherlands | Amsterdam |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:111:f100:9001::1761:910d | 3600s | — | AS8075 | Microsoft Corporation | 2a01:111:8000:0:0:0:0:0/33 | 🇳🇱 The Netherlands | Amsterdam |
| 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 | 2021031033 |
| 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 |
|---|---|---|---|
| 2026-10-17 07:59:27 | 3306ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-16 07:41:12 shown | 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 |
| 2026-08-11 01:13:28 | 12341ms | 3 NS 1 A 1 MX | 🔒 Secure |