reddersen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 March 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.164 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by reddersen-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 77.111.240.164 | 3600s | webcluster37.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:8020:a62d:2c92:536 | 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 |
|---|
| MS=ms57252891 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (reddersen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 77.111.240.164 2a02:2350:5:102:8020:a62d:2c92:536 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network reddersen.dk: 77.111.240.164 2a02:2350:5:102:8020:a62d:2c92:536 (AS51468) www.reddersen.dk: 77.111.240.164 2a02:2350:5:102:8020:a62d:2c92:536 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · 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 | 2026070105 |
| 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 | 2020-03-05 |
| Expires | 2027-03-31 (160d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 01:00:01 | 1347ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 22:36:15 | 925ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 17:11:09 | 1589ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-30 20:28:57 | 2096ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 19:23:25 | 790ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 22:16:16 | 9057ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-09 04:51:43 | 1630ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 17:22:27 shown | 1124ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 06:48:37 | 1758ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 07:43:11 | 939ms | 2 NS 1 A 1 MX | 🔒 Secure |