gradecheck.dk is a .dk domain served by 2 nameservers (ns1.vercel-dns.com, ns2.vercel-dns.com). It was registered on 1 May 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.198.79.65 is hosted by Amazon.com, Inc. (AS16509) in United States. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 216.198.79.65 | 1800s | — | AS16509 | Amazon.com, Inc. | 216.198.79.0/24 | 🇺🇸 United States | — |
| 64.29.17.1 | 1800s | — | AS16509 | Amazon.com, Inc. | 64.29.17.0/24 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 64.29.17.65 |
| 🔶 Autoconfig | 64.29.17.65 |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog |
| 0 | issue | sectigo.com |
| www | 216.198.79.1 64.29.17.1 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network gradecheck.dk: 216.198.79.65 64.29.17.65 (AS16509) www.gradecheck.dk: 216.198.79.1 64.29.17.1 (AS16509) |
| Wildcard | Yes: any name under the zone resolves |
| 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 | 1778705598 |
| Primary NS (MNAME) | ns1.vercel-dns.com |
| Responsible (RNAME) | hostmaster@nsone.net |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-05-01 |
| Expires | 2027-04-30 (189d) |
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 |
|---|---|---|---|
| 2026-09-30 00:17:05 shown | 630ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-03 10:33:17 | 9654ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-25 15:19:05 | 2604ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-25 06:18:21 | 2642ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-23 11:16:04 | 962ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 19:22:02 | 2436ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 09:35:15 | 576ms | 2 NS 2 A 0 MX | 🔓 Insecure |