biontech.dk is a .dk domain served by 3 nameservers (ns.udag.de, ns.udag.net, ns.udag.org). It was registered on 3 March 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.31.143.90 is hosted by united-domains GmbH (AS202108) in Germany. Mail is handled by mx00.udag.de, mx01.udag.de. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 89.31.143.90 | 600s | — | AS202108 | united-domains GmbH | 89.31.142.0/23 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx00.udag.de | 62.146.106.39 | mx00.udag.de | AS15598 NorthC Deutschland GmbH |
| 20 | 3600s | mx01.udag.de | 62.146.106.40 | mx01.udag.de | AS15598 NorthC Deutschland GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 89.31.143.90 |
| 🔶 Autoconfig | 89.31.143.90 |
| TXT Record |
|---|
| v=spf1 include:_smtp.udag.de ~all |
| Policy | Record (biontech.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_smtp.udag.de ~all |
| Policy | Record (_dmarc.biontech.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com |
| www | 89.31.143.90 (AS202108) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · 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 | 2023121912 |
| Primary NS (MNAME) | ns.udag.de |
| Responsible (RNAME) | hostmaster@united-domains.de |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | united-domains GmbH |
| Registered | 2023-03-03 |
| Expires | 2027-03-02 (128d) |
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 |
|---|---|---|---|
| 2026-10-21 12:00:55 | 714ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-09 13:52:46 | 878ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-23 06:39:19 shown | 705ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-26 08:10:34 | 2534ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-24 22:54:24 | 685ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-02 01:25:47 | 694ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 14:38:55 | 546ms | 3 NS 1 A 2 MX | 🔓 Insecure |