erols.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 January 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.68.233.238 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mail.erols.dk, mailgate.cybercity.dk. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 77.68.233.238 | 43200s | — | AS39642 | Sinal A/S | 77.68.128.0/17 | 🇩🇰 Denmark | Aalborg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.erols.dk | 77.68.233.238 | — | AS39642 Sinal A/S |
| 20 | 43200s | mailgate.cybercity.dk | 212.88.64.50 | relay.telenor.dk | AS9158 Telenor A/S |
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026032401 |
| 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 | 2004-01-27 |
| Expires | 2027-01-31 (105d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 16:37:48 | 520ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-09 12:23:44 | 528ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-06 11:57:14 | 3539ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 09:42:27 | 480ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 01:37:38 | 679ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-01 03:25:32 | 973ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 20:26:30 | 963ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-30 11:03:11 shown | 959ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-24 18:29:39 | 753ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-24 00:55:02 | 1141ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 23:36:55 | 2881ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 08:15:49 | 801ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 08:15:42 | 902ms | 2 NS 1 A 2 MX | 🔒 Secure |