mustread.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 April 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.155 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mail5.mustread.dk, mail10.mustread.dk and 1 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 94.231.103.155 | 43200s | linux139.unoeuro.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 5 | 43200s | mail5.mustread.dk | 83.93.215.194 | — | AS3292 TDC Holding A/S |
| 10 | 43200s | mail10.mustread.dk | 80.251.197.180 | 80.251.197.180.bredband.3.dk | AS44034 Hi3G Access AB |
| 15 | 43200s | mail.mustread.dk | 83.93.215.194 | — | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mustread.dk → 94.231.103.155 |
| 🔶 Autoconfig | mustread.dk → 94.231.103.155 |
| TXT Record |
|---|
| google-site-verification=eSUegIchwkVUDdjPM7J0aw6j8LwoiwipED-EYTAj1hM |
| google-site-verification=ZqHBWEOES-A0WwQPziKgoJUT7xqOE-dvGOIlsel19ms |
| v=spf1 mx a a:localsmtp.unoeuro.com a:smtp1.tre.se a:csmtp.tre.se a:smtp.3.dk include:servers.mcsv.net -all |
| Policy | Record (mustread.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a a:localsmtp.unoeuro.com a:smtp1.tre.se a:csmtp.tre.se a:smtp.3.dk include:servers.mcsv.net -all |
| Policy | Record (_dmarc.mustread.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:dmarc@jentas.com,mailto:dmarc@jentas.dk; |
| www CNAME | mustread.dk (all on mustread.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| k1 | dkim.mcsv.net | 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: 7/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.mustread.dk | mustread.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092101 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2011-04-01 |
| Expires | 2027-04-30 (195d) |
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 |
|---|---|
| jentas-books.dk | Punktum dk A/S (direct) |
| jentasbooks.dk | Punktum dk A/S (direct) |
| margitsandemo.dk | Punktum dk A/S (direct) |
| must-read.dk | Punktum dk A/S (direct) |
| sandemo.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 00:57:05 shown | 1412ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-15 23:46:48 | 577ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-24 03:38:21 | 977ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-19 13:30:41 | 1348ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-26 14:33:31 | 1184ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-17 08:00:00 | 5015ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-15 22:19:07 | 2302ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-17 22:06:48 | 848ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-03 00:26:47 | 684ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 12:14:28 | 792ms | 2 NS 1 A 3 MX | 🔒 Secure |