laeremiddel.dk is a .dk domain served by 3 nameservers (mimer.deic.dk, ns-soa.darenet.dk, orion.i2.dk). It was registered on 5 March 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.53 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.hc1805-70.eu.iphmx.com, mx2.hc1805-70.eu.iphmx.com. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.40.53 | 600s | vm1188.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.ucl.dk → 81.27.216.21 |
| TXT Record |
|---|
| d365mktkey=XyKqg3xaFET4FOtPMAZOnRlWYMjSjsGVzlD0OAnQptMx |
| MS=ms43491286 |
| SOA=1789452032 |
| v=spf1 ip4:23.90.111.221 ip4:194.165.192.197 ip4:81.27.216.120 ip4:81.27.216.121 ip4:81.27.216.122 ip4:185.21.40.53 include:spf.protection.outlook.com include:servers.mcsv.net -all |
| Policy | Record (laeremiddel.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:23.90.111.221 ip4:194.165.192.197 ip4:81.27.216.120 ip4:81.27.216.121 ip4:81.27.216.122 ip4:185.21.40.53 include:spf.protection.outlook.com include:servers.mcsv.net -all |
| Policy | Record (_dmarc.laeremiddel.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; adkim=s; aspf=s; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:caa-iodef@ucl.dk |
| 0 | issue | letsencrypt.org |
| 0 | issuewild | ; |
| www | 185.21.40.53 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 2/10 · 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 | 1791999151 |
| Primary NS (MNAME) | mimer.deic.dk |
| Responsible (RNAME) | dns@support.i2.dk |
| Refresh | 16384s |
| Retry | 2048s |
| Expire | 2097152s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2008-03-05 |
| Expires | 2027-03-31 (161d) |
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 |
|---|---|---|---|
| 2026-10-20 04:07:24 | 2709ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-19 03:16:32 | 1671ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-18 02:22:06 | 1774ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-17 01:29:31 | 1928ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-16 00:23:42 | 798ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-14 23:48:26 shown | 1571ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-13 22:21:15 | 800ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-12 20:13:06 | 2204ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-11 19:23:04 | 5504ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-10 18:44:05 | 4544ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-09 16:13:18 | 2429ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-08 13:45:00 | 2767ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-07 13:37:30 | 3190ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-06 11:59:53 | 2502ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-05 09:11:14 | 723ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-04 09:09:16 | 3115ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-03 09:06:22 | 780ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-02 09:05:35 | 1795ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 09:01:27 | 5296ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 08:55:30 | 4391ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 08:42:45 | 2989ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-28 08:21:56 | 1929ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-27 08:07:59 | 2376ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 07:48:13 | 4197ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 07:21:12 | 1894ms | 3 NS 1 A 2 MX | 🔒 Secure |