esimusa.dk is a .dk domain served by 2 nameservers (clay.ns.cloudflare.com, desi.ns.cloudflare.com). It was registered on 7 October 2026 (WHOIS) and first appeared in the .dk zone on 8 October 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mxa.mailgun.org, mxb.mailgun.org. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 76.76.21.21 | 300s | — | AS16509 | Amazon.com, Inc. | 76.76.21.0/24 | 🇺🇸 United States | Walnut |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mxa.mailgun.org | 34.36.182.139 | 139.182.36.34.bc.googleusercontent.com | AS396982 Google LLC |
| 10 | 300s | mxb.mailgun.org | 34.36.182.139 | 139.182.36.34.bc.googleusercontent.com | AS396982 Google LLC |
| TXT Record |
|---|
| google-site-verification=C0CNYY5KwJjhQ3ZOu4_nMvGgzCmCWSPbS4Suczr4Xx4 |
| v=spf1 include:mailgun.org include:amazonses.com ~all |
| Policy | Record (esimusa.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:mailgun.org include:amazonses.com ~all |
| Policy | Record (_dmarc.esimusa.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc@cronintechpartners.com |
| www CNAME | cname.vercel-dns.com (all on vercel-dns.com) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 6/10 · policy: ~all
No problems found| 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 | 2417083912 |
| Primary NS (MNAME) | clay.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Openprovider |
| Registered | 2026-10-07 |
| Expires | 2027-10-06 (349d) |
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).
| Domain | Registrar |
|---|---|
| copenhagenprosclub.dk | Openprovider |
| esimdenmark.dk | Openprovider |
| esimjapan.dk | Openprovider |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 03:33:30 | 1419ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-19 21:42:53 shown | 1339ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-18 19:56:55 | 4230ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-10 10:30:49 | 2202ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-08 08:31:31 | 2402ms | 2 NS 1 A 0 MX | 🔓 Insecure |