sumup.dk is a .dk domain served by 4 nameservers (ns-1158.awsdns-16.org, ns-1556.awsdns-02.co.uk, ns-224.awsdns-28.com and 1 more). It was registered on 19 June 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 |
| TXT Record |
|---|
| facebook-domain-verification=0qs1hah1bdrzzge1gcsnguwirj4rif |
| google-site-verification=hDo8-Yn3fwPsjg00jKDZQz0DgdlFafrRa-_DYHDhUuA |
| v=spf1 a mx ip4:52.211.74.234 ip4:52.214.148.172 include:_spf.google.com include:_spf.salesforce.com include:sendgrid.net include:amazonses.com -all |
| Policy | Record (sumup.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx ip4:52.211.74.234 ip4:52.214.148.172 include:_spf.google.com include:_spf.salesforce.com include:sendgrid.net include:amazonses.com -all |
| Policy | Record (_dmarc.sumup.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@sumup.com; ruf=mailto:dmarc@sumup.com |
| www CNAME | sumup.dk (all on sumup.dk) → 76.76.21.21 (AS16509) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 8/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.sumup.dk | IiCaPemFfBownUR1GhRsebkaYVR8Zqvda4ayBv-H8_Y |
| TXT | _acme-challenge.sumup.dk | xLZW35HUjqlPUujc-_GUhjEyUBP_NX-uYy2e_p7nfps |
| 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 | 1 |
| Primary NS (MNAME) | ns-761.awsdns-31.net |
| Responsible (RNAME) | awsdns-hostmaster@amazon.com |
| Refresh | 7200s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | united-domains GmbH |
| Registered | 2012-06-19 |
| Expires | 2027-06-30 (254d) |
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 |
|---|---|---|---|
| 2026-09-29 20:19:05 | 3159ms | 4 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-17 22:41:05 shown | 5286ms | 4 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-27 10:57:12 | 3119ms | 4 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-22 12:15:23 | 1241ms | 4 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-17 17:37:36 | 4806ms | 4 NS 1 A 5 MX | 🔓 Insecure |