willbrandt.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 July 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.248 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by willbrandt-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 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.248 | 3600s | webcluster2.wordpresspod1-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| 🔶 Autoconfig | 77.111.240.248 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:101:80c4:39db:205:f55e | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 mx ip4:5.103.28.5 include:spf.mailanyone.net include:spf.protection.outlook.com include:b.spf.itoperators.dk include:_custspf.one.com include:spf.smtp2go.com -all |
| Policy | Record (willbrandt.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx ip4:5.103.28.5 include:spf.mailanyone.net include:spf.protection.outlook.com include:b.spf.itoperators.dk include:_custspf.one.com include:spf.smtp2go.com -all |
| Policy | Record (_dmarc.willbrandt.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=reject; rua=mailto:rua@addpro.dk; ruf=mailto:ruf@addpro.dk; pct=100; fo=1; |
| www | 77.111.240.248 2a02:2350:5:101:80c4:39db:205:f55e (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network willbrandt.dk: 77.111.240.248 2a02:2350:5:101:80c4:39db:205:f55e (AS51468) www.willbrandt.dk: 77.111.240.248 2a02:2350:5:101:80c4:39db:205:f55e (AS51468) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u39329421.wl172.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u39329421.wl172.sendgrid.net | RSA · ~2048 bit |
| selector1 | selector1-willbrandt-dk._domainkey.willbrandt.onmicrosoft.com | 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: 6/10 · 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 | 2026090705 |
| 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 | ONE.COM A/S |
| Registered | 1999-07-15 |
| Expires | 2027-09-30 (348d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 04:43:28 shown | 1077ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 21:03:52 | 1332ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 15:50:48 | 858ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-12 02:33:57 | 5828ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 10:18:53 | 1120ms | 2 NS 1 A 1 MX | 🔒 Secure |