teltspecialisten.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 13 September 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 109.199.103.79 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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 |
|---|---|---|---|---|---|---|---|
| 109.199.103.79 | 3600s | vmi2410367.contaboserver.net | AS51167 | Contabo GmbH | 109.199.96.0/19 | 🇫🇷 France | Lauterbourg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 3600s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover-mf.onlinemail.io → 185.21.40.62 |
| 🔶 Autoconfig | autoconfig-mf.onlinemail.io → 185.21.40.62 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:c206:2241:367::1 | 3600s | vmi2410367.contaboserver.net | AS51167 | Contabo GmbH | 2a02:c204:0:0:0:0:0:0/30 | 🇫🇷 France | Lauterbourg |
| TXT Record |
|---|
| v=spf1 a include:spf.curanet.dk ~all |
| Policy | Record (teltspecialisten.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a include:spf.curanet.dk ~all |
| Policy | Record (_dmarc.teltspecialisten.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:rfpgnca5@ag.eu.dmarcian.com; ruf=mailto:system@lunia.dk; fo=1 |
| www | 109.199.103.79 2a02:c206:2241:367::1 (AS51167) (address records, no CNAME) |
| www vs bare domain | Same network teltspecialisten.dk: 109.199.103.79 2a02:c206:2241:367::1 (AS51167) www.teltspecialisten.dk: 109.199.103.79 2a02:c206:2241:367::1 (AS51167) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · 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 | 2025021901 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2023-09-13 |
| Expires | 2027-09-12 (327d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:47:41 shown | 959ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-19 23:12:57 | 3618ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 04:54:35 | 12155ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 04:05:11 | 838ms | 2 NS 1 A 2 MX | 🔒 Secure |